FR2368784A1 - ROM using MOSFETs - has double injection of electric charges and floating grid - Google Patents
ROM using MOSFETs - has double injection of electric charges and floating gridInfo
- Publication number
- FR2368784A1 FR2368784A1 FR7631541A FR7631541A FR2368784A1 FR 2368784 A1 FR2368784 A1 FR 2368784A1 FR 7631541 A FR7631541 A FR 7631541A FR 7631541 A FR7631541 A FR 7631541A FR 2368784 A1 FR2368784 A1 FR 2368784A1
- Authority
- FR
- France
- Prior art keywords
- floating grid
- junction
- electric charges
- memory
- injection
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title abstract 5
- 239000007924 injection Substances 0.000 title abstract 5
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000005669 field effect Effects 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
Classifications
-
- H01L29/8616—
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
- G11C16/0433—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing a single floating gate transistor and one or more separate select transistors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Read Only Memory (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
The permanent or read-only memory has metal oxide field effect semiconductor devices. It stores data by injection of electric charges and it has a floating grid. The memory has a single junction (4) to inject either electrons or holes into a floating grid (8). The charge injection is obtained by inverse polarisation of the junction (4) to a level at least equal to the avalanche threshold. It also has a capacitor to control the operation of the junction (4) in the electron injection or the hole injection mode. The memory also comprises an address transistor between the address terminal and the junction 4), and another transistor to detect the condition of the floating grid.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7631541A FR2368784A1 (en) | 1976-10-20 | 1976-10-20 | ROM using MOSFETs - has double injection of electric charges and floating grid |
JP12808177A JPS5466088A (en) | 1976-10-20 | 1977-10-25 | Semiconductor memory cell |
FR7826803A FR2437046A2 (en) | 1976-10-20 | 1978-09-19 | Single variable memory cell with floating grid - allows charge injection of electrons of holes by inverse polarisation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7631541A FR2368784A1 (en) | 1976-10-20 | 1976-10-20 | ROM using MOSFETs - has double injection of electric charges and floating grid |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2368784A1 true FR2368784A1 (en) | 1978-05-19 |
FR2368784B1 FR2368784B1 (en) | 1980-09-26 |
Family
ID=9178985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7631541A Granted FR2368784A1 (en) | 1976-10-20 | 1976-10-20 | ROM using MOSFETs - has double injection of electric charges and floating grid |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5466088A (en) |
FR (1) | FR2368784A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0077520A2 (en) * | 1981-10-19 | 1983-04-27 | Deutsche ITT Industries GmbH | Floating gate memory cell wherein writing and erasing is performed by injection of hot charge carriers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8320191B2 (en) | 2007-08-30 | 2012-11-27 | Infineon Technologies Ag | Memory cell arrangement, method for controlling a memory cell, memory array and electronic device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868187A (en) * | 1972-08-31 | 1975-02-25 | Tokyo Shibaura Electric Co | Avalanche injection type mos memory |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51120679A (en) * | 1975-04-16 | 1976-10-22 | Agency Of Ind Science & Technol | Semiconductive non-volatile memory element |
US4037242A (en) * | 1975-12-29 | 1977-07-19 | Texas Instruments Incorporated | Dual injector, floating gate MOS electrically alterable, non-volatile semiconductor memory device |
-
1976
- 1976-10-20 FR FR7631541A patent/FR2368784A1/en active Granted
-
1977
- 1977-10-25 JP JP12808177A patent/JPS5466088A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3868187A (en) * | 1972-08-31 | 1975-02-25 | Tokyo Shibaura Electric Co | Avalanche injection type mos memory |
Non-Patent Citations (4)
Title |
---|
EXBK/72 * |
EXBK/73 * |
EXBK/76 * |
NV433/76 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0077520A2 (en) * | 1981-10-19 | 1983-04-27 | Deutsche ITT Industries GmbH | Floating gate memory cell wherein writing and erasing is performed by injection of hot charge carriers |
EP0077520A3 (en) * | 1981-10-19 | 1984-11-28 | Deutsche ITT Industries GmbH | Floating gate memory cell wherein writing and erasing is performed by injection of hot charge carriers |
Also Published As
Publication number | Publication date |
---|---|
FR2368784B1 (en) | 1980-09-26 |
JPS5466088A (en) | 1979-05-28 |
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