US3713885A
Expired / Lapsed
US
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Memory matrix and its process of fabrication
Assignee: Bull SAS
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Filing: 1970-03-02
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Granted: 1973-01-30
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Expires: 1990-03-02
Abstract
Abstract A memory matrix and the process for fabricating said matrix, wherein a conductive array is formed of two mutually orthogonal and insulated sets of parallel conductive metallic bands, each band being formed of two superposed conductive strips, the lower strip of each band of the first set passing through an opening in the lower strip of each band of the second set and the upper strip of each band of the second set passing through an opening in the upper strip of each band of the first set, and wherein coupling elements selectively couple bands of one set to bands of the other set.
Inventors
- 👤 J Gallard
- 👤 I Lagadec
- 👤 P Betremieux
- 👤 H Feissel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:47
CPC Classifications
G; G11; G11C; G11C29/00; G11C29/70; G11C29/78; G11C17/00; G11C29/83; G11C29/832
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
In a memory matrix comprising first and second sets of parallel lines, formed of conductive metallic bands disposed on an insulating plane support in a manner such that each line of one set crosses at right angles to and is insulated from all lines of the other set, and means for coupling predetermined lines of one set to predetermined lines of the other set, wherein said means comprises lamallae of resistive material in series with a strip which is easily fusible by high intensity current applied to its extremities, the improvement wherein each of said bands comprises at least two superposed strips, and at the crossing points of said bands, the lower strip of one line of said first set is provided with a first opening through which passes the structurally continuous lower strip of one line of said second set, and the upper strip of said line of said first set, and means for insulating said continuous lower and upper strips one from the other disposed between said continuous strips of the two sets at the crossing point.
Claim 2
Dependent Claim
179 words
In a memory matrix comprising first and second sets of parallel lines, formed of conductive metallic bands disposed on an insulating plane support in a manner such that each line of one set crosses at right angles to and is insulated from all lines of the other set, and means for coupling predetermined lines of one set to predetermined lines of the other set, wherein said means comprises lamallae of resistive material in series with a strip which is easily fusible by high intensity current applied to its extremities, the improvement wherein each of said bands comprises at least two superposed strips, and at the crossing points of said bands, the lower strip of one line of said first set is provided with a first opening through which passes the structurally continuous lower strip of one line of said second set, and the upper strip of said line of said first set, and means for insulating said continuous lower and upper strips one from the other disposed between said continuous strips of the two sets at the crossing point.
Claim 3
Dependent Claim
14 words
The memory matrix of claim 1 wherein said lamallae of resistive material form resistors.
Claim 4
Dependent Claim
48 words
The memory matrix of claim 1, wherein said insulating means comprises a small insulating plate disposed between the continuous strips of the two sets, such that the portions of said first opening disposed between the lower strips of tHe bands which cross are filled with an insulating material.
Claim 5
Dependent Claim
21 words
The memory matrix of claim 1, further comprising an enlarged pad disposed at the extremities of each of said fusible strips.
Claim 6
Dependent Claim
32 words
The memory matrix of claim 1, further comprising an insulating layer provided with windows through which appear at least partially said coupling means or the lines of connection of said coupling means.
Claim 7
Dependent Claim
139 words
A conductive matrix comprising: first and second sets of conductive metallic bands, each band of one of said sets crossing and being insulated from all bands of the other set, each band being formed of two superposed conductive strips, the lower strip of each band of said first set being provided with first openings through which pass respective continuous lower strips of the bands of said second set, and the upper strip of each band of said second set being provided with second openings through which pass respective continuous upper strips of the bands of said first set, and means for coupling predetermined bands of one set to predetermined bands of the other set, said coupling means comprising lamallae of resistive material in series with a strip which is easily fusible by high intensity current applied to its extremities.
Claim 8
Dependent Claim
139 words
A conductive matrix comprising: first and second sets of conductive metallic bands, each band of one of said sets crossing and being insulated from all bands of the other set, each band being formed of two superposed conductive strips, the lower strip of each band of said first set being provided with first openings through which pass respective continuous lower strips of the bands of said second set, and the upper strip of each band of said second set being provided with second openings through which pass respective continuous upper strips of the bands of said first set, and means for coupling predetermined bands of one set to predetermined bands of the other set, said coupling means comprising lamallae of resistive material in series with a strip which is easily fusible by high intensity current applied to its extremities.
Claim 9
Dependent Claim
21 words
The memory matrix of claim 2, further comprising an enlarged pad disposed at the extremities of each of said fusible strips.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |