GB1352716A - Couble junction read only memory and process of manufacture - Google Patents
Couble junction read only memory and process of manufactureInfo
- Publication number
- GB1352716A GB1352716A GB3513371A GB3513371A GB1352716A GB 1352716 A GB1352716 A GB 1352716A GB 3513371 A GB3513371 A GB 3513371A GB 3513371 A GB3513371 A GB 3513371A GB 1352716 A GB1352716 A GB 1352716A
- Authority
- GB
- United Kingdom
- Prior art keywords
- read
- junction
- applying
- couble
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000015654 memory Effects 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/06—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using diode elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
- G11C17/16—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM using electrically-fusible links
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
- G11C17/18—Auxiliary circuits, e.g. for writing into memory
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B20/00—Read-only memory [ROM] devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
- Read Only Memory (AREA)
Abstract
1352716 Read-only memories INTERSIL Inc 27 July 1971 [14 Dec 1970] 35133/71 Heading G4A [Also in Division H1] An integrated circuit read-only memory comprises row and column conductors having a pair of back-to-back diodes (e.g. formed by the two junctions in a transistor) connected between them at each crossing point, information being recorded in the store by applying an electrical surface short across one diode in selected pairs so as to leave a conduction path between the row and column conductors through the remaining diodes of the selected pairs. Preferably the short is formed by applying a reverse bias voltage in excess of the junction breakdown voltage across the junction to cause migration of the metal of the contacts along the top of the semi-conductor material beneath its oxide insulating layer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9749270A | 1970-12-14 | 1970-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1352716A true GB1352716A (en) | 1974-05-08 |
Family
ID=22263655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3513371A Expired GB1352716A (en) | 1970-12-14 | 1971-07-27 | Couble junction read only memory and process of manufacture |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5242016B1 (en) |
DE (1) | DE2132570C3 (en) |
GB (1) | GB1352716A (en) |
IT (1) | IT944899B (en) |
-
1971
- 1971-06-30 DE DE2132570A patent/DE2132570C3/en not_active Expired
- 1971-07-27 GB GB3513371A patent/GB1352716A/en not_active Expired
- 1971-08-11 JP JP46060927A patent/JPS5242016B1/ja active Pending
- 1971-11-12 IT IT54047/71A patent/IT944899B/en active
Also Published As
Publication number | Publication date |
---|---|
DE2132570C3 (en) | 1980-11-20 |
DE2132570A1 (en) | 1972-06-22 |
DE2132570B2 (en) | 1980-02-28 |
IT944899B (en) | 1973-04-20 |
JPS5242016B1 (en) | 1977-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |