US5557138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
LC element and semiconductor device
Assignee: NSC Co Ltd
•
Filing: 1994-10-26
•
Granted: 1996-09-17
•
Expires: 2014-10-26
Abstract
Abstract An LC element with a pn junction layer formed near the surface of a p-Si substrate by forming an n + region having a predetermined shape and in a portion thereof additionally forming a p + region having the same shape, and with first and second electrodes formed over entire length on the surface of this pn junction layer; wherein the two electrodes respectively function as inductors and by using the pn junction layer with reverse bias, a distributed constant type capacitor is formed between these inductors, thereby providing excellent attenuation characteristics over a wide band, a semiconductor device including the LC element, and a method of manufacturing the LC element. This LC element and semiconductor device can be easily manufactured; in the case of manufacturing as a portion of an IC or LSI device, component assembly work in subsequent processing can be abbreviated, and by changing the capacitance of the distributed constant type capacitor according to requirements, the characteristics can be changed.
Inventors
- 👤 Takeshi Ikeda
- 👤 Susumu Okamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:30
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/0115; H10; H10D; H10D84/00; H03H1/00; H03H2001/0021; H03H2001/0064; H03H2001/0078
Claims Analysis
Total Claims: 80
Claim 1
Independent Claim
115 words
An LC element comprising: two inductor electrodes formed in a spiral shape respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 2
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a spiral shape respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 3
Dependent Claim
30 words
An LC element according to claim 1, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 4
Dependent Claim
87 words
An LC element according to claim 1 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 5
Dependent Claim
78 words
An LC element according to claim 1 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 6
Dependent Claim
36 words
An LC element according to claim 1 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 7
Dependent Claim
82 words
An LC element according to claim 1 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 8
Dependent Claim
21 words
An LC element according to claim 1 wherein a buffer is connected to the output side of said signal transmission line.
Claim 9
Dependent Claim
59 words
An LC element according to claim 1 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 10
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 1 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 11
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a spiral shape respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 12
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a spiral shape respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 13
Dependent Claim
30 words
An LC element according to claim 10, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 14
Dependent Claim
87 words
An LC element according to claim 10 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 15
Dependent Claim
78 words
An LC element according to claim 10 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 16
Dependent Claim
36 words
An LC element according to claim 10 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 17
Dependent Claim
82 words
An LC element according to claim 10 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically,
Claim 18
Dependent Claim
21 words
An LC element according to claim 10 wherein a buffer is connected to the output side of said signal transmission line.
Claim 19
Dependent Claim
59 words
An LC element according to claim 10 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 20
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 10 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 21
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a meander shape respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 22
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a meander shape respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 23
Dependent Claim
30 words
An LC element according to claim 19, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 24
Dependent Claim
87 words
An LC element according to claim 19 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 25
Dependent Claim
78 words
An LC element according to claim 19 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 26
Dependent Claim
36 words
An LC element according to claim 19 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 27
Dependent Claim
82 words
An LC element according to claim 19 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 28
Dependent Claim
21 words
An LC element according to claim 19 wherein a buffer is connected to the output side of said signal transmission line.
Claim 29
Dependent Claim
59 words
An LC element according to claim 19 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 30
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 19 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 31
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a meander shape respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 32
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a meander shape respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 33
Dependent Claim
30 words
An LC element according to claim 28, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 34
Dependent Claim
87 words
An LC element according to claim 28 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 35
Dependent Claim
78 words
An LC element according to claim 28 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 36
Dependent Claim
36 words
An LC element according to claim 28 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 37
Dependent Claim
82 words
An LC element according to claim 28 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 38
Dependent Claim
21 words
An LC element according to claim 28 wherein a buffer is connected to the output side of said signal transmission line.
Claim 39
Dependent Claim
59 words
An LC element according to claim 28 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 40
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 28 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 41
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a curved line respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 42
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a curved line respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 43
Dependent Claim
30 words
An LC element according to claim 37, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 44
Dependent Claim
87 words
An LC element according to claim 37 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 45
Dependent Claim
78 words
An LC element according to claim 37 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 46
Dependent Claim
36 words
An LC element according to claim 37 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 47
Dependent Claim
82 words
An LC element according to claim 37 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 48
Dependent Claim
21 words
An LC element according to claim 37 wherein a buffer is connected to the output side of said signal transmission line.
Claim 49
Dependent Claim
59 words
An LC element according to claim 37 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 50
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 37 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 51
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a curved line respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 52
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a curved line respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 53
Dependent Claim
30 words
An LC element according to claim 46, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 54
Dependent Claim
87 words
An LC element according to claim 46 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 55
Dependent Claim
78 words
An LC element according to claim 46 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 56
Dependent Claim
36 words
An LC element according to claim 46 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 57
Dependent Claim
82 words
An LC element according to claim 46 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 58
Dependent Claim
21 words
An LC element according to claim 46 wherein a buffer is connected to the output side of said signal transmission line.
Claim 59
Dependent Claim
59 words
An LC element according to claim 46 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 60
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 46 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 61
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a straight line respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 62
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a straight line respectively having predetermined inductances disposed essentially in parallel, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate along said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer along said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 63
Dependent Claim
30 words
An LC element according to claim 55, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 64
Dependent Claim
87 words
An LC element according to claim 55 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 65
Dependent Claim
78 words
An LC element according to claim 55 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 66
Dependent Claim
36 words
An LC element according to claim 55 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 67
Dependent Claim
82 words
An LC element according to claim 55 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 68
Dependent Claim
21 words
An LC element according to claim 55 wherein a buffer is connected to the output side of said signal transmission line.
Claim 69
Dependent Claim
59 words
An LC element according to claim 55 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 70
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 55 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
Claim 71
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a straight line respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 72
Dependent Claim
115 words
An LC element comprising: two inductor electrodes formed in a straight line respectively having predetermined inductances disposed essentially in opposition, and a pn junction layer functioning as a capacitor by using in a reverse bias state, formed on a semiconductor substrate between said two inductor electrodes and comprising a p region and an n region electrically connected over their entire length respectively to one and the other of said two inductor electrodes, wherein inductors respectively formed by said two inductor electrodes and the capacitor formed by said pn junction layer between said two inductor electrodes exist as distributed constants, and at least one of said two inductor electrodes is used as a signal transmission line.
Claim 73
Dependent Claim
30 words
An LC element according to claim 64, wherein the capacitance of said pn junction layer can be changed by changing the reverse bias voltage applied to said pn junction layer.
Claim 74
Dependent Claim
87 words
An LC element according to claim 64 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and a ground electrode provided in proximity to one end of the other of said two inductor electrodes, wherein a signal is input to either one of said first and second input/output electrodes and output from the other, and said ground electrode is connected to a fixed potential power supply or ground.
Claim 75
Dependent Claim
78 words
An LC element according to claim 64 and further comprising: first and second input/output electrodes respectively provided in proximity to one end and to the other end of either one of said two inductor electrodes, and third and fourth input/output electrodes respectively provided in proximity to one end and to the other end of the other of said two inductor electrodes, and used as a common mode type element having said two inductor electrodes as signal transmission lines.
Claim 76
Dependent Claim
36 words
An LC element according to claim 64 wherein said two inductor electrodes are of different length, and said pn junction layer is formed at least over entire length of the shorter of said two inductor electrodes.
Claim 77
Dependent Claim
82 words
An LC element according to claim 64 wherein only either one of said inductor electrodes is used as a signal transmission line, either the other one of said inductor electrodes is divided into a plurality of segments or both of the other one of said inductor electrodes and the pn junction layer corresponding to the other one of said inductor electrodes are divided into a plurality of segments, and each of the divided plurality of inductor electrode segments is mutually connected electrically.
Claim 78
Dependent Claim
21 words
An LC element according to claim 64 wherein a buffer is connected to the output side of said signal transmission line.
Claim 79
Dependent Claim
59 words
An LC element according to claim 64 formed on a semiconductor substrate, further comprising terminals by forming an insulation layer on the entire surface of said semiconductor substrate, opening perforations in portions of said insulation layer by etching or laser light emission, and then closing said perforations by applying solder to the extent of protruding slightly above the surface.
Claim 80
Dependent Claim
48 words
A semiconductor device wherein an LC element according to claim 64 is formed as a portion of a semiconductor substrate in an integrated construction so that at least one of said two inductor electrodes is inserted into a signal line or a power supply line of said device.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1999-09-17 | 2000-03-18 | 2000-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-17 | 2004-03-18 | 2004-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-17 | 2008-03-18 | 2008-09-17 | $7700.00 | Window Closed / Lapsed |