Patent US824347A successfully refreshed from Google Patents.
Patent US4759965A successfully refreshed from Google Patents.
US4759965A
Expired / Lapsed
US
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Ceramic, preparation thereof and electronic circuit substrate by use thereof
Assignee: Canon Inc
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Filing: 1986-08-04
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Granted: 1988-07-26
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Expires: 2006-08-04
Abstract
Abstract A ceramic comprises therein two or more dielectric portions having different dielectric constants formed by filling of one or more vacant spaces provided within a dielectric porcelain, a semiconductor porcelain as a precursor of said dielectric porcelain or a molded product as a precursor of said semiconductor procelain with one or more kinds of materials capable of becoming to have different dielectric constants from said dielectric porcelain and subsequent calcination.
Inventors
- 👤 Keiichi Kato
- 👤 Motoo Kumagai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:05
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/0072; C04B41/45; C04B41/50; C04B41/5025; C04B41/52; C04B41/80; C04B41/81; C04B41/85; C04B41/87; C04B41/89; H; H05; H05K; H05K1/00; H05K1/16; H05K1/162; C04B2111/00; C04B2111/00474; C04B2111/00844; H05K1/02; H05K1/03; H05K1/0306; H05K2201/00; H05K2201/01; H05K2201/0183; H05K2201/0187; H05K3/00; H05K3/46; H05K3/4611; H05K3/4626; H05K3/4629; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24802; Y10T428/24917; Y10T428/24926; Y10T428/24942
Claims Analysis
Total Claims: 81
Claim 1
Independent Claim
70 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by filling of one or more vacant spaces provided within a dieletric porcelain, with one or more kinds of materials capable of developing different dielectric constants from said dielectric porcelain and by subsequent calcination, wherein a semiconductor procelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 2
Dependent Claim
70 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by filling of one or more vacant spaces provided within a dieletric porcelain, with one or more kinds of materials capable of developing different dielectric constants from said dielectric porcelain and by subsequent calcination, wherein a semiconductor procelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 3
Dependent Claim
33 words
A ceramic according to claim 1, wherein said vacant space is a concavity or a groove provided at the surface layer portion of said dielectric porcelain, said semiconductor porcelain or said molded product.
Claim 4
Dependent Claim
32 words
A ceramic according to claim 1, wherein said vacant space is a communicated hole having openings respectively on the different surfaces of said dielectric porcelain, said semiconductor porcelain or said molded product.
Claim 5
Dependent Claim
49 words
A ceramic according to claim 1, wherein the material filled into said space has a dielectric constant lower than that of said dielectric porcelain, said ceramic having two or more portions with higher dielectric constant separated from each other with the portion of said low dielectric constant sandwiched therebetween.
Claim 6
Dependent Claim
92 words
An electronic circuit substrate comprising a ceramic, comprising therein two or more dielectric portions having different dielectric constant formed by filling of one or mroe vacant spaces provided within a dielectric porcelain with one or more kinds of materials capable of developing different dieletric constants from said dielectric porcelain and by subsequent calcination, and wherein said ceramic further comprises a conductor provided internally or on the surface of said ceramic, wherein a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 7
Dependent Claim
92 words
An electronic circuit substrate comprising a ceramic, comprising therein two or more dielectric portions having different dielectric constant formed by filling of one or mroe vacant spaces provided within a dielectric porcelain with one or more kinds of materials capable of developing different dieletric constants from said dielectric porcelain and by subsequent calcination, and wherein said ceramic further comprises a conductor provided internally or on the surface of said ceramic, wherein a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 8
Dependent Claim
35 words
An electronic circuit substrate according to claim 5, wherein said vacant space is a concavity or a groove provided at the surface layer portion of said dielectric porcelain, said semiconductor porcelain or said molded product.
Claim 9
Dependent Claim
34 words
An electronic circuit substrate according to claim 5, wherein said vacant space is a communicated hole having openings respectively on the different surfaces of said dielectric porcelain, said semiconductor porcelain or said molded product.
Claim 10
Dependent Claim
51 words
An electronic circuit substrate according to claim 5, wherein the material filled into said space has a dielectric constant lower than that of said dielectric porcelain, said ceramic having two or more portions with higher dielectric constant separated from each other with the portion of said low dielectric constant sandwiched therebetween.
Claim 11
Dependent Claim
23 words
An electronic circuit substrate according to claim 5, further having a resistor and/or an insulator internally or on the surface of said ceramic.
Claim 12
Dependent Claim
23 words
An electronic circuit substrate according to claim 8, further having a resistor and/or an insulator internally or on the surface of said ceramic.
Claim 13
Independent Claim
70 words
A method for producing a ceramic, which comprises the steps of: providing a vacant space in a dielectric porcelain, a semiconductor porcelain being a precursor of said dielectric porcelain and a molded product being a precursor of said semiconductor porcelain; filling said vacant space with a material having a different dielectric constant from said dielectric porcelain; and calcining the material thereby to form a portion with a different dielectric constant.
Claim 14
Independent Claim
70 words
A method for producing a ceramic, which comprises the steps of: providing a vacant space in a dielectric porcelain, a semiconductor porcelain being a precursor of said dielectric porcelain and a molded product being a precursor of said semiconductor porcelain; filling said vacant space with a material having a different dielectric constant from said dielectric porcelain; and calcining the material thereby to form a portion with a different dielectric constant.
Claim 15
Dependent Claim
34 words
A method according to claim 11, wherein said vacant space is a concavity or a groove provided at the surface layer portion of said dielectric porcelain, said semiconductor porcelain or a said molded product.
Claim 16
Dependent Claim
32 words
A method according to claim 11, wherein said vacant space is a communicated hole having openings respectively on the different surfaces of said dielectric porcelain, said semiconductor porcelain or said molded product.
Claim 17
Dependent Claim
49 words
A method according to claim 11, wherein the material filled into said vacant space has a dielectric constant lower than that of said dielectric porcelain, and the portions with higher dielectric constant around said vacant space are separated from each other with said lower dielectric constant portion sandwiched therebetween.
Claim 18
Dependent Claim
54 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by: packing of two or more kinds of ceramic forming grain groups capable of developing different dielectric constants into a mold and separated from one another by use of partition plates; and subsequent calcination of said ceramic forming grain groups.
Claim 19
Dependent Claim
54 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by: packing of two or more kinds of ceramic forming grain groups capable of developing different dielectric constants into a mold and separated from one another by use of partition plates; and subsequent calcination of said ceramic forming grain groups.
Claim 20
Dependent Claim
28 words
A ceramic according to claim 15, having two of more of said high dielectric constant portions separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 21
Dependent Claim
72 words
An electronic substrate comprising a ceramic and a conductor provided internally or on a surface of said ceramic, said ceramic comprising therein two or more dielectric portions having different dielectric constants formed by: packing of two or more kinds of ceramic forming grain groups capable of developing different dielectric constants into a mold and separated from one another by use of partition plates; and subsequent calcination of said ceramic forming grain groups.
Claim 22
Dependent Claim
72 words
An electronic substrate comprising a ceramic and a conductor provided internally or on a surface of said ceramic, said ceramic comprising therein two or more dielectric portions having different dielectric constants formed by: packing of two or more kinds of ceramic forming grain groups capable of developing different dielectric constants into a mold and separated from one another by use of partition plates; and subsequent calcination of said ceramic forming grain groups.
Claim 23
Dependent Claim
33 words
An electronic circuit substrate according to claim 17, wherein said ceramic has two or more of said high dielectric constant portions separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 24
Dependent Claim
23 words
An electronic circuit substrate according to claim 17, further having a resistor and/or an insulator internally or on the surface of said ceramic.
Claim 25
Independent Claim
65 words
A method for producing a ceramic, which comprises the steps of: forming a high dielectric constant portion and a low dielectric constant portion by calcining a ceramic forming grain group capable of developing a low dielectric constant, and packing said ceramic forming grain groups into a mold so that said ceramic forming grain groups are sectionalized from each other by use of a partitioning plate.
Claim 26
Independent Claim
65 words
A method for producing a ceramic, which comprises the steps of: forming a high dielectric constant portion and a low dielectric constant portion by calcining a ceramic forming grain group capable of developing a low dielectric constant, and packing said ceramic forming grain groups into a mold so that said ceramic forming grain groups are sectionalized from each other by use of a partitioning plate.
Claim 27
Dependent Claim
28 words
A method according to claim 20, wherein two or more high dielectric constant portions are formed separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 28
Dependent Claim
35 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by diffusion into a dielectric porcelain of a diffusion source material capable of lowering the dielectric constant of said dielectric porcelain.
Claim 29
Dependent Claim
35 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by diffusion into a dielectric porcelain of a diffusion source material capable of lowering the dielectric constant of said dielectric porcelain.
Claim 30
Dependent Claim
40 words
A ceramic according to claim 22, having two or more high dielectric constant portions separated from each other with the portion in which said diffusion source capable of being made to have a low dielectric constant is diffused sandwiched therebetween.
Claim 31
Dependent Claim
37 words
A ceramic according to claim 22, wherein said diffusion source capable of being made to have a low dielectric constant is at least one selected from MgTiO 3 , SiO 2 and Al 2 O 3 .
Claim 32
Dependent Claim
52 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having different dielectric constants formed by diffusion into a dielectric porcelain of a diffusion source material capable of lowereing the dielectric constant of said dielectric porcelain, and a conductor provided internally or on the surface of said ceramic.
Claim 33
Dependent Claim
52 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having different dielectric constants formed by diffusion into a dielectric porcelain of a diffusion source material capable of lowereing the dielectric constant of said dielectric porcelain, and a conductor provided internally or on the surface of said ceramic.
Claim 34
Dependent Claim
45 words
An electronic circuit substrate according to claim 25, wherein said ceramic has two or more high dielectric constant portions separated from each other with the portion in which said diffusion source capable of being made to have a low dielectric constant is diffused sandwiched therebetween.
Claim 35
Dependent Claim
39 words
An electronic circuit substrate according to claim 25, wherein said diffusion source capable of being made to have a low dielectric constant is at least one selected from MgTiO 3 , SiO 2 and Al 2 O 3 .
Claim 36
Dependent Claim
23 words
An electronic circuit substrate according to claim 25, further having a resistor and/or an insulator internally or on the surface of said ceramic.
Claim 37
Independent Claim
63 words
A method for producing a ceramic, which comprising the steps of: forming a layer of a metal or a metal oxide on the surface of a semiconductor porcelain, then forming a layer of a diffusion source capable of developing a low dielectric constant partially on said layer and thereafter calcining the product, thereby forming two or more dielectric portions with different dielectric constants.
Claim 38
Independent Claim
63 words
A method for producing a ceramic, which comprising the steps of: forming a layer of a metal or a metal oxide on the surface of a semiconductor porcelain, then forming a layer of a diffusion source capable of developing a low dielectric constant partially on said layer and thereafter calcining the product, thereby forming two or more dielectric portions with different dielectric constants.
Claim 39
Dependent Claim
37 words
A method according to claim 29, wherein said diffusion source capable of being made to have a low dielectric constant is at least one selected from MgTiO 3 , SiO 2 and Al 2 O 3 .
Claim 40
Dependent Claim
42 words
A method according to claim 29, wherein two or more high dielectric constant portions separated from each other with the portion in which said diffusion source capable of being made to have a low dielectric constant is diffused sandwiched therebetween are formed.
Claim 41
Independent Claim
49 words
A method for forming a ceramic, which comprises the steps of: forming a layer of a diffusion source capable of developing a lower dielectric constant partially on the surface of a dielectric porcelain and thereafter calcining the product, thereby forming two or more dielectric portions with different dielectric constants.
Claim 42
Independent Claim
49 words
A method for forming a ceramic, which comprises the steps of: forming a layer of a diffusion source capable of developing a lower dielectric constant partially on the surface of a dielectric porcelain and thereafter calcining the product, thereby forming two or more dielectric portions with different dielectric constants.
Claim 43
Dependent Claim
37 words
A method according to claim 32, wherein said diffusion source capable of being made to have a low dielectric constant is at least one selected from MgTiO 3 , SiO 2 and Al 2 O 3 .
Claim 44
Dependent Claim
42 words
A method according to claim 32, wherein two or more high dielectric constant portions separated from each other with the portion in which said diffusion source capable of being made to have a low dielectric constant is diffused sandwiched therebetween are formed.
Claim 45
Dependent Claim
44 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by application of melting within a dielectric porcelain wherein, a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 46
Dependent Claim
44 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants formed by application of melting within a dielectric porcelain wherein, a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 47
Dependent Claim
43 words
A ceramic according to claim 35, wherein the melted portion has a dielectric constant lower than that of said dielectric porcelain, which ceramic having two or more high dielectric constant portions separated from each other with said lower dielectric constant portion sandwiched therebetween.
Claim 48
Dependent Claim
64 words
An electronic circuit substrate comprising a ceramic and a conductor provided internally or in the surface of said ceramic, said ceramic comprising therein two or more dielectric portions having different dielectric constant formed by the application of melting within a dielectric porcelain, wherein a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 49
Dependent Claim
64 words
An electronic circuit substrate comprising a ceramic and a conductor provided internally or in the surface of said ceramic, said ceramic comprising therein two or more dielectric portions having different dielectric constant formed by the application of melting within a dielectric porcelain, wherein a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 50
Dependent Claim
45 words
An electronic circuit substrate according to claim 37, wherein the melted portion has a dielectric constant lower than that of said dielectric porcelain, which ceramic having two or more high dielectric constant portions separated from each other with said lower dielectric constant portion sandwiched therebetween.
Claim 51
Dependent Claim
23 words
An electronic circuit substrate according to claim 37, further having a resistor and/or an insulator internally or on the surface of said ceramic.
Claim 52
Independent Claim
49 words
A method for producing a ceramic, which comprises the steps of: partially melting of a dielectric porcelain thereby to form a portion with a different dielectric constant, wherein a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 53
Independent Claim
49 words
A method for producing a ceramic, which comprises the steps of: partially melting of a dielectric porcelain thereby to form a portion with a different dielectric constant, wherein a semiconductor porcelain is a precursor of said dielectric porcelain and a molded product is a precursor of said semiconductor porcelain.
Claim 54
Dependent Claim
43 words
A method according to claim 40, wherein the melted portion has a dielectric constant lower than that of said dielectric porcelain and two or more high dielectric constant portions separated from each other with said lower dielectric constant portion sandwiched therebetween are formed.
Claim 55
Dependent Claim
29 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants due to the difference in the content of a component necessary for conversion into a semiconductor.
Claim 56
Dependent Claim
29 words
A ceramic comprising therein two or more dielectric portions having different dielectric constants due to the difference in the content of a component necessary for conversion into a semiconductor.
Claim 57
Dependent Claim
46 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having different dielectric constants due to the difference in the content of a component necessary for conversion into a semiconductor, and a conductor provided internally or on the surface of said ceramic.
Claim 58
Dependent Claim
46 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having different dielectric constants due to the difference in the content of a component necessary for conversion into a semiconductor, and a conductor provided internally or on the surface of said ceramic.
Claim 59
Dependent Claim
29 words
A ceramic comprising therein two or more dielectric portions having different sized constituent grains and different dielectric constants due to the difference in the size of said constituent grains.
Claim 60
Dependent Claim
29 words
A ceramic comprising therein two or more dielectric portions having different sized constituent grains and different dielectric constants due to the difference in the size of said constituent grains.
Claim 61
Dependent Claim
42 words
A ceramic according to claim 44, wherein said two or more dielectric portions with different dielectric constants have a low dielectric constant portion and two or more high dielectric portions separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 62
Dependent Claim
49 words
A ceramic according to claim 45, wherein said high dielectric constant portions have grain sizes of the constituent grains which are made 1.5-fold or more, by promotion of grain growth, of the grain sizes of the constituent grains at the portion where no promotion of grain growth is made.
Claim 63
Dependent Claim
49 words
A ceramic according to claim 45, wherein said low dielectric constant portion has grain sizes of the constituent grains which are made 2/3 or less, by supression of grain growth, of the grain sizes of the constituent grains at the portion where no supression of grain growth is made.
Claim 64
Dependent Claim
46 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having different sized constituent grains and different dielectric constants due to the difference in the size of said constituent grains, and a conductor provided internally or on the surface of said ceramic.
Claim 65
Dependent Claim
46 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having different sized constituent grains and different dielectric constants due to the difference in the size of said constituent grains, and a conductor provided internally or on the surface of said ceramic.
Claim 66
Dependent Claim
44 words
An electronic circuit substrate according to claim 48, wherein said two or more dielectric portions with different dielectric constants have a low dielectric constant portion and two or more high dielectric portions separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 67
Dependent Claim
51 words
An electronic circuit substrate according to claim 49, wherein said high dielectric constant portions have grain sizes of the constituent grains which are made 1.5-fold or more, by promotion of grain growth, of the grain sizes of the constituent grains at the portion where no promotion of grain growth is made.
Claim 68
Dependent Claim
51 words
An electronic circuit substrate according to claim 49, wherein said low dielectric constant portion has grain sizes of the constituent grains which are made 2/3 or less, by supression of grain growth, of the grain sizes of the constituent grains at the portion where no supression of grain growth is made.
Claim 69
Dependent Claim
30 words
A ceramic comprising therein two or more dielectric portions having constituent materials of different densities and different dielectric constants due to the difference in the density of said constituent materials.
Claim 70
Dependent Claim
30 words
A ceramic comprising therein two or more dielectric portions having constituent materials of different densities and different dielectric constants due to the difference in the density of said constituent materials.
Claim 71
Dependent Claim
42 words
A ceramic according to claim 52, wherein said two or more dielectric portions with different dielectric constants have a low dielectric constant portion and two or more high dielectric portions separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 72
Dependent Claim
42 words
A ceramic according to claim 53, wherein the density of the constituent material at said high dielectric constant portions is made 1.1-fold or more, by increase of the density, of the density at the portion where no increase of density is made.
Claim 73
Dependent Claim
41 words
A ceramic according to claim 53, wherein the density of the constituent material of said low dielectric constant portion is made 10/11 or less, by decrease of density, of the density at the portion where no decrease of density is made.
Claim 74
Dependent Claim
47 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having constituent materials of different densities and different dielectric constants due to the difference in the density of said constituent materials, and a conductor provided internally or on the surface of said ceramic.
Claim 75
Dependent Claim
47 words
An electronic circuit substrate comprising a ceramic comprising therein two or more dielectric portions having constituent materials of different densities and different dielectric constants due to the difference in the density of said constituent materials, and a conductor provided internally or on the surface of said ceramic.
Claim 76
Dependent Claim
44 words
An electronic circuit substrate according to claim 56, wherein said two or more dielectric portions with different dielectric constants have a low dielectric constant portion and two or more high dielectric portions separated from each other with said low dielectric constant portion sandwiched therebetween.
Claim 77
Dependent Claim
44 words
An electronics circuit substrate according to claim 57, wherein the density of the constituent material at said high dielectric constant portions is made 1.1-fold or more, by increase of the density of the density at the portion where no increase of density is made.
Claim 78
Dependent Claim
43 words
An electronics circuit substrate according to claim 57, wherein the density of the constituent material of said low dielectric constant portion is made 10/11 or less, by decrease of density, of the density at the portion where no decrease of density is made.
Claim 79
Independent Claim
56 words
A method for producing a ceramic, which comprises the steps of: imparting partially onto the surface of a dielectric porcelain a material capable of absorbing components for imparting of different dielectric portions with different dielectric constants to said porcelain and then calcining the product obtained, thereby forming two or more dielectric portions with different dielectric constants.
Claim 80
Independent Claim
56 words
A method for producing a ceramic, which comprises the steps of: imparting partially onto the surface of a dielectric porcelain a material capable of absorbing components for imparting of different dielectric portions with different dielectric constants to said porcelain and then calcining the product obtained, thereby forming two or more dielectric portions with different dielectric constants.
Claim 81
Dependent Claim
40 words
A method according to claim 60, wherein the material capable of absorbing said components is at least one selected from SiO 2 , Al 2 O 3 , mixtures of SiO 2 and Al 2 O 3 , and MgO.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |