KR0151623B1 - 이이피롬 셀 및 그 제조방법 - Google Patents
이이피롬 셀 및 그 제조방법Info
- Publication number
- KR0151623B1 KR0151623B1 KR1019940033046A KR19940033046A KR0151623B1 KR 0151623 B1 KR0151623 B1 KR 0151623B1 KR 1019940033046 A KR1019940033046 A KR 1019940033046A KR 19940033046 A KR19940033046 A KR 19940033046A KR 0151623 B1 KR0151623 B1 KR 0151623B1
- Authority
- KR
- South Korea
- Prior art keywords
- gate
- insulating film
- forming
- substrate
- floating gate
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title 1
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000000151 deposition Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 20
- 210000004027 cell Anatomy 0.000 description 19
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 10
- 229920005591 polysilicon Polymers 0.000 description 10
- 238000002955 isolation Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000002784 hot electron Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 210000002763 pyramidal cell Anatomy 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/40—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region
- H10B41/41—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the peripheral circuit region of a memory region comprising a cell select transistor, e.g. NAND
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76865—Selective removal of parts of the layer
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B69/00—Erasable-and-programmable ROM [EPROM] devices not provided for in groups H10B41/00 - H10B63/00, e.g. ultraviolet erasable-and-programmable ROM [UVEPROM] devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Abstract
Description
Claims (3)
- 기판 상에 다수의 트렌치를 형성하는 공정과, 상기 다수의 트렌치 내부를 채우도록 제1 절연막을 형성하는 공정과, 상기 트렌치를 사이의 기판 상에 비트라인을 형성하는 공정과, 상기 비트라인을 덮도록 제2 절연막을 형성하는 공정과, 상기 기판 상에 게이트절연막을 형성하는 공정과, 상기 게이트절연막 상에 상기 트렌치들 사이에 위치되고 적어도 상기 제2 절연막의 일부분을 지나가도록 플로팅게이트를 형성하는 공정과, 상기 비트라인과 교차하고 상기 플로팅게이트를 지나도록 콘트롤게이트를 형성하는 동시에 상기 트렌치를 덮되, 상기 콘트롤게이트와 평행하며 상기 플로팅게이트의 일부위를 지나도록 이레이즈게이트를 형성하는 공정을 포함하는 이이피롬 셀 제조방법.
- 제1항에 있어서, 상기 제1 절연막은 상기 트렌치가 형성된 기판 상에 절연막을 데포지션하고, 상기 상기 기판이 노출되도록 상기 절연막을 에치백하여 상기 트렌치 내부에만 잔류되도록 패턴식각된 것이 특징인 이이피롬 셀 제조방법.
- 이이피롬 셀에 있어서, 기판과, 상기 기판의 소정영역에 형성된 트렌치와, 상기 트렌치 내부를 채우도록 형성된 제1 절연막과, 상기 트랜치들 사이의 기판 상에 형성된 비트라인과, 상기 비트라인을 덮도록 형성된 제2 절연막과, 상기 기판 상에 형성된 게이트절연막과, 상기 게이트절연막 상에 상기 트렌치들 사이에 위치되고 적어도 상기 제2 절연막의 일부분을 지나가도록 형성된 플로팅게이트와, 상기 비트라인과 교차하고 상기 플로팅게이트를 지나도록 형성된 콘트롤게이트와, 상기 트렌치를 덮되, 상기 콘트롤게이트와 평행하며 상기 플로팅게이트의 일부위를 지나도록 형성된 이레이즈게이트를 구비한 이이피롬 셀.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940033046A KR0151623B1 (ko) | 1994-12-07 | 1994-12-07 | 이이피롬 셀 및 그 제조방법 |
JP7214849A JP2693932B2 (ja) | 1994-12-07 | 1995-08-23 | 電気的消去書込み可能romセルの製造方法 |
US08/568,621 US5643814A (en) | 1994-12-07 | 1995-12-07 | Method of making an EEPROM with an erase gate |
US08/729,292 US5760436A (en) | 1994-12-07 | 1996-10-10 | EEPROM cell and process for formation thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940033046A KR0151623B1 (ko) | 1994-12-07 | 1994-12-07 | 이이피롬 셀 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960026895A KR960026895A (ko) | 1996-07-22 |
KR0151623B1 true KR0151623B1 (ko) | 1998-10-01 |
Family
ID=19400519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940033046A KR0151623B1 (ko) | 1994-12-07 | 1994-12-07 | 이이피롬 셀 및 그 제조방법 |
Country Status (3)
Country | Link |
---|---|
US (2) | US5643814A (ko) |
JP (1) | JP2693932B2 (ko) |
KR (1) | KR0151623B1 (ko) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100217901B1 (ko) * | 1996-03-11 | 1999-09-01 | 김영환 | 플래쉬 이이피롬 셀 및 그 제조방법 |
KR100364790B1 (ko) * | 1996-09-09 | 2003-03-15 | 주식회사 하이닉스반도체 | 플래쉬 메모리 소자 및 그 제조방법 |
US6060359A (en) | 1996-12-23 | 2000-05-09 | Lg Semicon Co., Ltd. | Flash memory cell and method of fabricated the same |
US5879991A (en) * | 1997-12-04 | 1999-03-09 | Taiwan Semiconductor Manufacturing Company, Ltd. | Trench free polysilicon gate definition process for a non-volatile memory device |
DE69802509T2 (de) * | 1998-06-30 | 2002-07-18 | Stmicroelectronics S.R.L., Agrate Brianza | Verfahren zur Herstellung einer nichtflüchtigen Halbleiterspeicheranordnung mit Grabenisolation |
US6159801A (en) * | 1999-04-26 | 2000-12-12 | Taiwan Semiconductor Manufacturing Company | Method to increase coupling ratio of source to floating gate in split-gate flash |
US6151248A (en) | 1999-06-30 | 2000-11-21 | Sandisk Corporation | Dual floating gate EEPROM cell array with steering gates shared by adjacent cells |
US6091633A (en) * | 1999-08-09 | 2000-07-18 | Sandisk Corporation | Memory array architecture utilizing global bit lines shared by multiple cells |
US6512263B1 (en) | 2000-09-22 | 2003-01-28 | Sandisk Corporation | Non-volatile memory cell array having discontinuous source and drain diffusions contacted by continuous bit line conductors and methods of forming |
US6936887B2 (en) * | 2001-05-18 | 2005-08-30 | Sandisk Corporation | Non-volatile memory cells utilizing substrate trenches |
US6894343B2 (en) * | 2001-05-18 | 2005-05-17 | Sandisk Corporation | Floating gate memory cells utilizing substrate trenches to scale down their size |
KR100475081B1 (ko) * | 2002-07-09 | 2005-03-10 | 삼성전자주식회사 | Sonos형 eeprom 및 그 제조방법 |
US7030020B2 (en) * | 2003-09-12 | 2006-04-18 | Taiwan Semiconductor Manufacturing Co., Ltd. | Method to shrink cell size in a split gate flash |
KR101394553B1 (ko) | 2007-11-08 | 2014-05-14 | 삼성전자주식회사 | 비휘발성 메모리 소자 및 그 형성방법 |
JP6833873B2 (ja) | 2016-05-17 | 2021-02-24 | シリコン ストーリッジ テクノロージー インコーポレイテッドSilicon Storage Technology, Inc. | 不揮発性メモリアレイを使用したディープラーニングニューラルネットワーク分類器 |
US10269440B2 (en) | 2016-05-17 | 2019-04-23 | Silicon Storage Technology, Inc. | Flash memory array with individual memory cell read, program and erase |
JP6716022B2 (ja) | 2016-05-17 | 2020-07-01 | シリコン ストーリッジ テクノロージー インコーポレイテッドSilicon Storage Technology, Inc. | 個々のメモリセルが読み出し、プログラミング、及び消去される3ゲートフラッシュメモリセルアレイ |
CN109328385B (zh) * | 2016-05-17 | 2023-03-21 | 硅存储技术公司 | 采用单独存储器单元读取、编程和擦除的存储器单元阵列 |
US10276726B2 (en) * | 2016-05-31 | 2019-04-30 | Taiwan Semiconductor Manufacturing Co., Ltd. | Non-volatile memory cell and non-volatile memory |
US10580492B2 (en) | 2017-09-15 | 2020-03-03 | Silicon Storage Technology, Inc. | System and method for implementing configurable convoluted neural networks with flash memories |
US11087207B2 (en) | 2018-03-14 | 2021-08-10 | Silicon Storage Technology, Inc. | Decoders for analog neural memory in deep learning artificial neural network |
US10748630B2 (en) | 2017-11-29 | 2020-08-18 | Silicon Storage Technology, Inc. | High precision and highly efficient tuning mechanisms and algorithms for analog neuromorphic memory in artificial neural networks |
US10803943B2 (en) | 2017-11-29 | 2020-10-13 | Silicon Storage Technology, Inc. | Neural network classifier using array of four-gate non-volatile memory cells |
CN110010606B (zh) * | 2018-01-05 | 2023-04-07 | 硅存储技术公司 | 衬底沟槽中具有浮栅的双位非易失性存储器单元 |
US11409352B2 (en) | 2019-01-18 | 2022-08-09 | Silicon Storage Technology, Inc. | Power management for an analog neural memory in a deep learning artificial neural network |
US11270763B2 (en) | 2019-01-18 | 2022-03-08 | Silicon Storage Technology, Inc. | Neural network classifier using array of three-gate non-volatile memory cells |
US11023559B2 (en) | 2019-01-25 | 2021-06-01 | Microsemi Soc Corp. | Apparatus and method for combining analog neural net with FPGA routing in a monolithic integrated circuit |
US10720217B1 (en) | 2019-01-29 | 2020-07-21 | Silicon Storage Technology, Inc. | Memory device and method for varying program state separation based upon frequency of use |
US11423979B2 (en) | 2019-04-29 | 2022-08-23 | Silicon Storage Technology, Inc. | Decoding system and physical layout for analog neural memory in deep learning artificial neural network |
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US3984822A (en) * | 1974-12-30 | 1976-10-05 | Intel Corporation | Double polycrystalline silicon gate memory device |
JPS5961188A (ja) * | 1982-09-30 | 1984-04-07 | Toshiba Corp | 不揮発性半導体メモリ装置 |
US4698787A (en) * | 1984-11-21 | 1987-10-06 | Exel Microelectronics, Inc. | Single transistor electrically programmable memory device and method |
US4998220A (en) * | 1988-05-03 | 1991-03-05 | Waferscale Integration, Inc. | EEPROM with improved erase structure |
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US5343063A (en) * | 1990-12-18 | 1994-08-30 | Sundisk Corporation | Dense vertical programmable read only memory cell structure and processes for making them |
JPH0567791A (ja) * | 1991-06-20 | 1993-03-19 | Mitsubishi Electric Corp | 電気的に書込および消去可能な半導体記憶装置およびその製造方法 |
US5467305A (en) * | 1992-03-12 | 1995-11-14 | International Business Machines Corporation | Three-dimensional direct-write EEPROM arrays and fabrication methods |
US5196722A (en) * | 1992-03-12 | 1993-03-23 | International Business Machines Corporation | Shadow ram cell having a shallow trench eeprom |
US5386132A (en) * | 1992-11-02 | 1995-01-31 | Wong; Chun C. D. | Multimedia storage system with highly compact memory device |
US5495441A (en) * | 1994-05-18 | 1996-02-27 | United Microelectronics Corporation | Split-gate flash memory cell |
-
1994
- 1994-12-07 KR KR1019940033046A patent/KR0151623B1/ko not_active IP Right Cessation
-
1995
- 1995-08-23 JP JP7214849A patent/JP2693932B2/ja not_active Expired - Fee Related
- 1995-12-07 US US08/568,621 patent/US5643814A/en not_active Expired - Lifetime
-
1996
- 1996-10-10 US US08/729,292 patent/US5760436A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5760436A (en) | 1998-06-02 |
JP2693932B2 (ja) | 1997-12-24 |
KR960026895A (ko) | 1996-07-22 |
JPH08162550A (ja) | 1996-06-21 |
US5643814A (en) | 1997-07-01 |
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