JPS62502644A - メモリー・セル - Google Patents
メモリー・セルInfo
- Publication number
- JPS62502644A JPS62502644A JP61502384A JP50238486A JPS62502644A JP S62502644 A JPS62502644 A JP S62502644A JP 61502384 A JP61502384 A JP 61502384A JP 50238486 A JP50238486 A JP 50238486A JP S62502644 A JPS62502644 A JP S62502644A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- threshold
- rewritable
- read
- cell
- 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
- 230000015654 memory Effects 0.000 title claims description 54
- 238000003860 storage Methods 0.000 claims description 4
- 241001279686 Allium moly Species 0.000 claims 1
- 238000000034 method Methods 0.000 description 20
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 17
- 229920005591 polysilicon Polymers 0.000 description 16
- 150000004767 nitrides Chemical class 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000758 substrate Substances 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 239000007943 implant Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004518 low pressure chemical vapour deposition Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000282376 Panthera tigris Species 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
- G11C16/0466—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells with charge storage in an insulating layer, e.g. metal-nitride-oxide-silicon [MNOS], silicon-oxide-nitride-oxide-silicon [SONOS]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0688—Integrated circuits having a three-dimensional layout
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B20/00—Read-only memory [ROM] devices
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Read Only Memory (AREA)
Abstract
Description
Claims (8)
- 1.ゲート電極(35,55)とチャンネル構造との間の誘電体構造(36,3 7M;56,57M)とゲート電極(35,55)とを含む電荷蓄積メモリー・ ゲート(35,36,37M;55,56,57M)とチャンネル構造とを有す る第1の書換可能な閾値メモリー装置(31,51)と、第1の比較的低いレベ ルと第2の比較的高いレベルに装置の閾値レベルを制御するに適した電荷蓄積能 力を有するメモリー・ゲート構造(35,36,37M;55,56,57M) とから成るメモリー・セル(30,50)を含むメモリー装置であって、更にチ ャンネル構造(41,61)とゲート構造(42,43;55,58)とを有す る第2の固定閾値装置(32,52)を含み、前記第2の装置(32,52)は 前記第1の装置(31,51)と隣り合う関係に形成され、前記第1(31,5 1)及び第2(32,52)の装置は共通の作用要素を有するメモリー装置。
- 2.前記共通作用要素は共通のゲート電極(55)である請求の範囲1項記載の メモリー装置。
- 3.前記共通作用要素は共通なチャンネル構造である請求の範囲1項記載のメモ リー装置。
- 4.前記メモリー・セル(30,50)は前記第1の装置(31,51)と前記 第2の装置(32,52)とが互いに縦集積構造に形成された請求の範囲1項, 2項又は3項記載のメモリー装置。
- 5.前記メモリー・セル(30,50)は前記第1の装置(31A,51A)と 前記第2の装置(31F,51F)とが集積回路の同一アクティブ領域(65) に形成される水平集積構造を有することを特徴とする請求の範囲1項,2項又は 3項記載のメモリー装置。
- 6.前記第1の書換可能な閾値メモリー装置(31,51)は不揮発性である請 求の範囲1項記載のメモリー装置。
- 7.前記装置は読出専用メモリーの形に構成され、前記第1及び第2の装置(3 1,51,32,52)から選ばれた1つが作動可能な装置として構成され、前 記第1及び第2の装置の他の1つは動作不能装置として構成された複数の前記メ モリー・セル(30,50)を含み、前記第1の装置(31,51)には第1の 読出専用メモリー・コードが記憶され、前記第2の装置(32,52)には第2 の読出専用メモリー・コードが記憶されるようにしたことを特徴とする請求の範 囲1項、2項、3項、4項、5項又は6項記載のメモリー装置。
- 8.前記第1及び第2の読出専用メモリー・コード間の選択は前記第1の書換可 能な閾値装置(31,51)に行われるブロック消去及びブロック書込動作によ って達成される請求の範囲7項記載のメモリー装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/725,039 US4667217A (en) | 1985-04-19 | 1985-04-19 | Two bit vertically/horizontally integrated memory cell |
US725039 | 1985-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62502644A true JPS62502644A (ja) | 1987-10-08 |
JP2503219B2 JP2503219B2 (ja) | 1996-06-05 |
Family
ID=24912898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61502384A Expired - Fee Related JP2503219B2 (ja) | 1985-04-19 | 1986-04-16 | メモリ―・セル |
Country Status (4)
Country | Link |
---|---|
US (1) | US4667217A (ja) |
EP (1) | EP0218697A1 (ja) |
JP (1) | JP2503219B2 (ja) |
WO (1) | WO1986006540A2 (ja) |
Families Citing this family (101)
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US5268870A (en) * | 1988-06-08 | 1993-12-07 | Eliyahou Harari | Flash EEPROM system and intelligent programming and erasing methods therefor |
US5293560A (en) * | 1988-06-08 | 1994-03-08 | Eliyahou Harari | Multi-state flash EEPROM system using incremental programing and erasing methods |
US5268319A (en) * | 1988-06-08 | 1993-12-07 | Eliyahou Harari | Highly compact EPROM and flash EEPROM devices |
JPH0263163A (ja) * | 1988-08-29 | 1990-03-02 | Nec Corp | 不揮発性半導体記憶装置 |
US5196912A (en) * | 1988-10-28 | 1993-03-23 | Casio Computer Co., Ltd. | Thin film transistor having memory function and method for using thin film transistor as memory element |
US5079606A (en) * | 1989-01-26 | 1992-01-07 | Casio Computer Co., Ltd. | Thin-film memory element |
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JPS6178169A (ja) * | 1984-09-26 | 1986-04-21 | Hitachi Ltd | 半導体記憶装置 |
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DE2418750C3 (de) * | 1974-04-18 | 1978-11-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | MI112 S-Speichertransistor |
JPS5263686A (en) * | 1975-11-20 | 1977-05-26 | Toshiba Corp | Non-voltatile semiconductor memory device |
US4258378A (en) * | 1978-05-26 | 1981-03-24 | Texas Instruments Incorporated | Electrically alterable floating gate memory with self-aligned low-threshold series enhancement transistor |
JPS5556662A (en) * | 1978-10-20 | 1980-04-25 | Chiyou Lsi Gijutsu Kenkyu Kumiai | Semiconductor device |
JPS55156371A (en) * | 1979-05-24 | 1980-12-05 | Toshiba Corp | Non-volatile semiconductor memory device |
IL61671A (en) * | 1979-12-13 | 1984-04-30 | Energy Conversion Devices Inc | Diode and rom or eeprom devices using it |
DE3037744A1 (de) * | 1980-10-06 | 1982-05-19 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum herstellen einer monolithisch integrierten zwei-transistor-speicherzelle in mos-technik |
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JPS5854668A (ja) * | 1981-09-29 | 1983-03-31 | Fujitsu Ltd | 電気的消去型読出し専用メモリおよびその製造方法 |
JPS58154273A (ja) * | 1982-03-10 | 1983-09-13 | Seiko Instr & Electronics Ltd | 不揮発性半導体メモリ |
US4554570A (en) * | 1982-06-24 | 1985-11-19 | Rca Corporation | Vertically integrated IGFET device |
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- 1985-04-19 US US06/725,039 patent/US4667217A/en not_active Expired - Lifetime
-
1986
- 1986-04-16 JP JP61502384A patent/JP2503219B2/ja not_active Expired - Fee Related
- 1986-04-16 WO PCT/US1986/000775 patent/WO1986006540A2/en not_active Application Discontinuation
- 1986-04-16 EP EP86902724A patent/EP0218697A1/en not_active Withdrawn
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JPS6178169A (ja) * | 1984-09-26 | 1986-04-21 | Hitachi Ltd | 半導体記憶装置 |
Also Published As
Publication number | Publication date |
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WO1986006540A3 (en) | 1986-12-18 |
US4667217A (en) | 1987-05-19 |
EP0218697A1 (en) | 1987-04-22 |
JP2503219B2 (ja) | 1996-06-05 |
WO1986006540A2 (en) | 1986-11-06 |
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