US5077762A
Expired / Lapsed
US
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Charge transfer device having mim structures and method for driving the same
Assignee: Olympus Corp
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Filing: 1990-09-18
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Granted: 1991-12-31
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Expires: 2010-09-18
Abstract
Abstract There is provided a one-dimensional MIM array having MIM structures arranged on an insulative substrate in a lateral direction and each used as a unit for storing a signal charge, for sequentially storing and transferring the signal charges between the adjacent MIM structures. With the above element structure, the signal charge is transferred in each of the MIM structures in a thickness direction (depth direction) thereof and stored in a capacitor. The signal charge stored in the capacitor is sequentially transferred in a lateral direction or to the next MIM structure. In order to drive the above charge transfer device, transfer pulses applied to a plurality of MIM structures constituting a one-dimensional MIM array are controlled to sequentially transfer and store the signal charges into the MIM structures starting from the MIM structure which is provided on the output terminal side of the one-dimensional MIM array. At the time of reading out the signal charge, signal charges are sequentially read out and transferred from the MIM structures starting from the MIM structure which is provided on the output terminal side.
Inventors
- 👤 Masamichi Morimoto
- 👤 Hiroshi Nakano
- 👤 Yoshiyuki Mimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:38
CPC Classifications
H; H10; H10N; H10N70/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
108 words
A charge transfer device comprising: a substrate having an insulative surface; and a first one-dimensional MIM array formed on the surface of said substrate, wherein said first one-dimensional MIM array includes: (a) a plurality of MIM structures arranged on a row, each of said MIM structures being formed of a tunnel switching film held between first and second metal films and the first metal film of each of said MIM structures being electrically connected to the second metal film of a next stage MIM structure which is adjacent to the former MIM structure; and (b) capacitors respectively connected to said first metal films of said respective MIM structures.
Claim 2
Dependent Claim
108 words
A charge transfer device comprising: a substrate having an insulative surface; and a first one-dimensional MIM array formed on the surface of said substrate, wherein said first one-dimensional MIM array includes: (a) a plurality of MIM structures arranged on a row, each of said MIM structures being formed of a tunnel switching film held between first and second metal films and the first metal film of each of said MIM structures being electrically connected to the second metal film of a next stage MIM structure which is adjacent to the former MIM structure; and (b) capacitors respectively connected to said first metal films of said respective MIM structures.
Claim 3
Dependent Claim
89 words
The device according to claim 1, further comprising: at least one second one-dimensional MIM array arranged in parallel with said first one-dimensional MIM array, said second one-dimensional MIM array having the same structure as said first one-dimensional MIM array and said first and second one-dimensional MIM arrays being combined to constitute a two-dimensional MIM array; an input element provided on one of opposite ends of said first and second one-dimensional MIM arrays; and an output element provided on the other end of said first and second one-dimensional MIM arrays.
Claim 4
Dependent Claim
25 words
The device according to claim 2, wherein said input element includes a demultiplexer for distributing signal charges to said first and second one-dimensional MIM arrays.
Claim 5
Dependent Claim
43 words
The device according to claim 2, wherein said input element includes a third one-dimensional MIM array for distributing signal charges to said first and second one-dimensional MIM arrays, said third one-dimensional MIM array having the same structure as said first one-dimensional MIM array.
Claim 6
Dependent Claim
33 words
The device according to claim 2, wherein said output element includes a multiplexer for reading out the signal charges from said first and second one-dimensional MIM array and combining and outputting the same.
Claim 7
Dependent Claim
51 words
The device according to claim 2, wherein said output element includes a third one-dimensional MIM array for reading out the signal charges from said first and second one-dimensional MIM array and combining and outputting the same, said third one-dimensional MIM array having the same structure as said first one-dimensional MIM array.
Claim 8
Dependent Claim
109 words
The device according to claim 1, further comprising at least one second one-dimensional MIM array arranged in parallel with said first one-dimensional MIM array, said second one-dimensional MIM array having the same construction as said first one-dimensional MIM array and said first and second one-dimensional MIM arrays being combined to constitute a two-dimensional MIM array; and wherein a plurality of said two-dimensional MIM arrays are laminated to constitute a three-dimensional MIM array; and said charge transfer device further includes: (a) an input element provided on one end portion of said three-dimensional MIM array; and (b) an output element provided on the other end portion of said three-dimensional MIM array.
Claim 9
Dependent Claim
96 words
The device according to claim 7, wherein said input element includes: a third one-dimensional MIM array for transferring input signal charges in a first direction and distributing the same in parallel, said third one-dimensional MIM array having the same construction as said first one-dimensional MIM array; and a plurality of fourth one-dimensional MIM arrays for transferring a plurality of distributed outputs from said third one-dimensional MIM array in a second direction perpendicular to said first direction and outputting the same, said fourth one-dimensional MIM arrays each having the same construction as said first one-dimensional MIM array.
Claim 10
Dependent Claim
106 words
The device according to claim 7, wherein said output element includes: a plurality of third one-dimensional MIM arrays for transferring input signal charges read out from said first and second one-dimensional MIM arrays in a first direction, said third one-dimensional MIM arrays each having the same construction as said first one-dimensional MIM array; and a fourth one-dimensional MIM array for transferring the signal charges transferred from said plurality of third one-dimensional MIM arrays in a second direction perpendicular to said first direction to output the same on a time series basis, said fourth one-dimensional MIM array having the same construction as said first one-dimensional MIM array.
Claim 11
Dependent Claim
34 words
The device according to claim 1, further comprising: a clear mechanism for clearing charges remaining on the capacitor connected to the MIM structure on the output terminal side of said first one-dimensional MIM array.
Claim 12
Independent Claim
247 words
A method for driving a charge transfer device, wherein the charge transfer device comprises a substrate having an insulative surface; and a one-dimensional MIM array formed on the surface of said substrate, wherein the one-dimensional MIM array includes: (a) a plurality of MIM structures arranged on a row, each of said MIM structures comprising a tunnel switching film arranged between first and second metal films and the first metal film of each of said MIM structures being electrically connected to the second metal film of a next stage MIM structure which is adjacent to said former MIM structure; and (b) capacitors respectively connected to said first metal films of said respective MIM structures, the driving method comprising: applying a transfer pulse to a plurality of the MIM structures via the capacitors thereof; storing in the one-dimensional MIM array signal charges which are supplied to the second metal film of a corresponding one of the MIM structures into the capacitor thereof in response to a transfer pulse applied to said MIM structure via said capacitor thereof; controlling time widths of transfer pulses respectively applied to said plurality of MIM structures constituting said one-dimensional MIM array in order to selectively control said MIM structures for serially transferring the signal charges; and serially transferring the signal charges between said MIM structures which are applied with the transfer pulses by respectively applying the transfer pulses whose time widths are controlled to said plurality of MIM structures constituting said one-dimensional MIM array.
Claim 13
Independent Claim
247 words
A method for driving a charge transfer device, wherein the charge transfer device comprises a substrate having an insulative surface; and a one-dimensional MIM array formed on the surface of said substrate, wherein the one-dimensional MIM array includes: (a) a plurality of MIM structures arranged on a row, each of said MIM structures comprising a tunnel switching film arranged between first and second metal films and the first metal film of each of said MIM structures being electrically connected to the second metal film of a next stage MIM structure which is adjacent to said former MIM structure; and (b) capacitors respectively connected to said first metal films of said respective MIM structures, the driving method comprising: applying a transfer pulse to a plurality of the MIM structures via the capacitors thereof; storing in the one-dimensional MIM array signal charges which are supplied to the second metal film of a corresponding one of the MIM structures into the capacitor thereof in response to a transfer pulse applied to said MIM structure via said capacitor thereof; controlling time widths of transfer pulses respectively applied to said plurality of MIM structures constituting said one-dimensional MIM array in order to selectively control said MIM structures for serially transferring the signal charges; and serially transferring the signal charges between said MIM structures which are applied with the transfer pulses by respectively applying the transfer pulses whose time widths are controlled to said plurality of MIM structures constituting said one-dimensional MIM array.
Claim 14
Dependent Claim
57 words
The method according to claim 11, comprising controlling the time widths of said transfer pulses to permit the signal charges supplied from an input terminal of said one-dimensional MIM array to be sequentially stored into said capacitors starting from the capacitor which is connected to the MIM structure provided on the side of an output terminal thereof.
Claim 15
Dependent Claim
49 words
The method according to claim 11, comprising controlling the time widths of said transfer pulses to sequentially read out the signal charges from said capacitors starting from the capacitor which is connected to the MIM structure provided on the side of an output terminal of said one-dimensional MIM array.
Claim 16
Independent Claim
169 words
A method for driving a charge transfer device, wherein the charge transfer device comprises a substrate having an insulative surface; and a one-dimensional MIM array formed on the surface of said substrate, wherein the one-dimensional MIM array includes: (a) a plurality of multi-layered MIM structures arranged on a row, each of said MIM structures comprising a plurality of metal films and a plurality of tunnel switching films alternately laminated on each other, a tunnel switching film arranged between adjacent metal films serving as a basic unit; and (b) capacitors respectively connected to said metal films of said respective MIM structures, said method comprising: sequentially storing signal charges supplied from an input terminal of said one-dimensional MIM array into said capacitors starting from the capacitor which is connected to the MIM structure provided on an output terminal side thereof; and sequentially reading out signal charges from said capacitors starting from the capacitor which is connected to the MIM structure provided on the output terminal side of said one-dimensional MIM array.
Claim 17
Independent Claim
169 words
A method for driving a charge transfer device, wherein the charge transfer device comprises a substrate having an insulative surface; and a one-dimensional MIM array formed on the surface of said substrate, wherein the one-dimensional MIM array includes: (a) a plurality of multi-layered MIM structures arranged on a row, each of said MIM structures comprising a plurality of metal films and a plurality of tunnel switching films alternately laminated on each other, a tunnel switching film arranged between adjacent metal films serving as a basic unit; and (b) capacitors respectively connected to said metal films of said respective MIM structures, said method comprising: sequentially storing signal charges supplied from an input terminal of said one-dimensional MIM array into said capacitors starting from the capacitor which is connected to the MIM structure provided on an output terminal side thereof; and sequentially reading out signal charges from said capacitors starting from the capacitor which is connected to the MIM structure provided on the output terminal side of said one-dimensional MIM array.
References Cited (Backward Citations)
US4177391A
Cited
US3986176A
Cited
US4534015A
Cited
US4648072A
Cited
US4910293A
Cited
US4813016A
Cited
US4939556A
Cited
US4972370A
Cited
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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) | 1994-12-30 | 1995-07-01 | 1995-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-30 | 1999-07-01 | 1999-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-30 | 2003-07-01 | 2003-12-31 | $7700.00 | Window Closed / Lapsed |