JP2009206450A - 不揮発性半導体記憶装置、及びディプレッション型mosトランジスタ - Google Patents
不揮発性半導体記憶装置、及びディプレッション型mosトランジスタ Download PDFInfo
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- H01L29/76—Unipolar devices, e.g. field effect transistors
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- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
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Abstract
【解決手段】
メモリセルアレイ中のメモリセルトランジスタを駆動するための周辺回路は、少なくとも第1のトランジスタを含む。この第1のトランジスタは、半導体基板1の表面にゲート絶縁膜25を介して形成されたゲート電極26と、ゲート電極26の直下に形成されるチャネル領域22と、ゲート電極26に対し自己整合的に形成されるソース・ドレイン拡散領域21と、チャネル領域22とソース・ドレイン拡散領域21とが重複するゲート電極26直下に形成される重複領域24とを備える。
【選択図】図9
Description
従来、半導体記憶装置の一つとして、電気的書き替えを可能とした不揮発性半導体記憶装置が知られている。なかでも、メモリセルを複数個直列接続してNANDセルブロックを構成するNAND型フラッシュメモリは、高集積化ができるものとして広く用いられている。
電圧切換回路54Aは、出力ノードN10と電源ノードVRDECとの間に、トランジスタHND1と、これにノードN2(トランジスタHND1のソース)でトランジスタHND1と直列に接続されたトランジスタHPとを備えている。トランジスタHND1は、高耐圧でディプリッション型(D型)のnチャネル型MOSトランジスタであり、その閾値電圧Vth(HND1)は負の値を有する。トランジスタHPは、高耐圧でエンハンスメント型(E型)のPチャネルMOSトランジスタであり、その閾値電圧Vth(HP)は負の値を有する。
またこの電圧切換回路54Aでは、入力電圧INPUTが入力されるノードN9と出力ノードN10との間に、インバータ回路INV1、INV2、低耐圧でD型(すなわち、負の閾値電圧Vth(LND)を有する)のNチャネルMOSトランジスタLND、及び高耐圧でD型のNチャネルMOSトランジスタHND2(負の閾値電圧Vth(HND2)を有する)が直列接続されている。トランジスタLND、及びトランジスタHND2は、制御信号BSTONをそのゲートに印加され、全体としてスイッチング回路を構成している。
Claims (6)
- 半導体基板上にゲート絶縁膜を介して形成された電荷蓄積層を具備するメモリセルトランジスタを配列してなるメモリセルアレイと、
前記メモリセルトランジスタを駆動するための周辺回路とを備え、
前記周辺回路は、少なくとも第1のトランジスタを含み、
前記第1のトランジスタは、
半導体層と、
半導体層の表面にゲート絶縁膜を介して形成されたゲート電極と、
前記ゲート電極の直下近傍の前記半導体層の表面に形成され第1の不純物濃度を有する第1導電型のチャネル領域と、
前記ゲート電極に対し自己整合的に前記半導体層の表面に形成され前記第1の不純物濃度よりも大きな第2の不純物濃度を有する第1導電型のソース・ドレイン拡散領域と、
前記チャネル領域と前記ソース・ドレイン拡散領域とが重複する前記ゲート電極直下の前記半導体層の表面に形成され前記第2の不純物濃度よりも大きな第3の不純物濃度を有する第1導電型の重複領域とを備える
ことを特徴とする不揮発性半導体記憶装置。 - 前記周辺回路は、前記第1のトランジスタに加え第2のトランジスタを備え、
前記第2のトランジスタは、
前記半導体層の表面にゲート絶縁膜を介して形成されたゲート電極と、
前記ゲート電極の直下を含む前記半導体層の表面に形成され第4の不純物濃度を有する第1導電型のチャネル領域と、
前記ゲート電極に対し自己整合的に前記チャネル領域内に形成され前記第4の不純物濃度よりも大きな第5の不純物濃度を有する第1導電型のソース・ドレイン拡散領域と
を備えたことを特徴とする請求項1記載の不揮発性半導体記憶装置。 - 前記第1のトランジスタは、前記ソース・ドレイン拡散領域の表面の少なくとも一部に形成され前記第2の不純物濃度よりも大きな第6の不純物濃度を有する第1導電型のコンタクト領域を更に備えた請求項1または請求項2に記載の不揮発性半導体記憶装置。
- 前記チャネル領域において注入される不純物は、前記ソース・ドレイン拡散領域に注入される不純物とは種類が異なることを特徴とする請求項1乃至請求項3のいずれかに記載の不揮発性半導体記憶装置。
- 半導体層と、
半導体層の表面にゲート絶縁膜を介して形成されたゲート電極と、
前記ゲート電極の直下近傍の前記半導体層の表面に形成され第1の不純物濃度を有する第1導電型のチャネル領域と、
前記ゲート電極に対し自己整合的に前記半導体層の表面に形成され前記第1の不純物濃度よりも大きな第2の不純物濃度を有する第1導電型のソース・ドレイン拡散領域と、
前記チャネル領域と前記ソース・ドレイン拡散領域とが重複する前記ゲート電極直下の前記半導体層の表面に形成され前記第2の不純物濃度よりも大きな第3の不純物濃度を有する第1導電型の重複領域と、
を備えたことを特徴とするディプレッション型MOSトランジスタ。 - 前記第1の不純物濃度と前記第4の不純物濃度が同じであり、
前記第3の不純物濃度と前記第5の不純物濃度のチャネル領域の濃度が同じであることを特徴とする請求項2に記載の不揮発性半導体装置。
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JP2008050066A JP5135004B2 (ja) | 2008-02-29 | 2008-02-29 | 不揮発性半導体記憶装置、及びディプレッション型mosトランジスタ |
US12/359,643 US8093664B2 (en) | 2008-02-29 | 2009-01-26 | Non-volatile semiconductor memory device and depletion-type MOS transistor |
KR1020090016801A KR101110538B1 (ko) | 2008-02-29 | 2009-02-27 | 불휘발성 반도체 메모리 장치 및 공핍형 mos 트랜지스터 |
US13/211,928 US20110300680A1 (en) | 2008-02-29 | 2011-08-17 | Non-volatile semiconductor memory device and depletion-type mos transistor |
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JP2008050066A JP5135004B2 (ja) | 2008-02-29 | 2008-02-29 | 不揮発性半導体記憶装置、及びディプレッション型mosトランジスタ |
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JP5135004B2 JP5135004B2 (ja) | 2013-01-30 |
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JP5135004B2 (ja) * | 2008-02-29 | 2013-01-30 | 株式会社東芝 | 不揮発性半導体記憶装置、及びディプレッション型mosトランジスタ |
WO2009123544A1 (en) * | 2008-03-31 | 2009-10-08 | Telefonaktiebolaget L M Ericsson (Publ) | Handling identifiers for enhanced dedicated channels in cell forward access channel states |
JP2011009695A (ja) * | 2009-05-29 | 2011-01-13 | Toshiba Corp | 不揮発性半導体記憶装置及びディプレッション型mosトランジスタ |
KR20130007609A (ko) * | 2010-03-15 | 2013-01-18 | 마이크론 테크놀로지, 인크. | 반도체 메모리 장치를 제공하기 위한 기술들 |
KR20110120044A (ko) * | 2010-04-28 | 2011-11-03 | 삼성전자주식회사 | 안티퓨즈, 이를 포함하는 안티퓨즈 회로, 및 안티퓨즈 제조 방법 |
JP5487034B2 (ja) * | 2010-07-20 | 2014-05-07 | 株式会社東芝 | 半導体装置および半導体装置の製造方法 |
JP2012204435A (ja) * | 2011-03-24 | 2012-10-22 | Toshiba Corp | 不揮発性半導体記憶装置 |
US9368619B2 (en) | 2013-02-08 | 2016-06-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method for inducing strain in vertical semiconductor columns |
CN104009078B (zh) * | 2013-02-26 | 2016-12-28 | 中芯国际集成电路制造(上海)有限公司 | 无结晶体管及其制造方法 |
US8999805B1 (en) * | 2013-10-05 | 2015-04-07 | Taiwan Semiconductor Manufacturing Company Limited | Semiconductor device with reduced gate length |
US9564493B2 (en) | 2015-03-13 | 2017-02-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Devices having a semiconductor material that is semimetal in bulk and methods of forming the same |
US10886405B2 (en) | 2016-12-07 | 2021-01-05 | Macronix International Co., Ltd. | Semiconductor structure |
JP2018200144A (ja) | 2017-05-29 | 2018-12-20 | 株式会社Ihi | 燃焼炉及びボイラ |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0645541A (ja) * | 1992-07-22 | 1994-02-18 | Matsushita Electron Corp | 半導体素子の製造方法 |
JP2001308210A (ja) * | 2001-03-12 | 2001-11-02 | Fujitsu Ltd | 半導体装置 |
JP2002158292A (ja) * | 2000-11-20 | 2002-05-31 | Fuji Electric Co Ltd | 基準電圧半導体装置 |
JP2002299475A (ja) * | 2001-03-30 | 2002-10-11 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2004297044A (ja) * | 2003-03-10 | 2004-10-21 | Toshiba Corp | 半導体装置及びその製造方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4514897A (en) * | 1979-09-04 | 1985-05-07 | Texas Instruments Incorporated | Electrically programmable floating gate semiconductor memory device |
US4990974A (en) * | 1989-03-02 | 1991-02-05 | Thunderbird Technologies, Inc. | Fermi threshold field effect transistor |
US5369295A (en) * | 1992-01-28 | 1994-11-29 | Thunderbird Technologies, Inc. | Fermi threshold field effect transistor with reduced gate and diffusion capacitance |
US5194923A (en) * | 1992-01-28 | 1993-03-16 | Thunderbird Technologies, Inc. | Fermi threshold field effect transistor with reduced gate and diffusion capacitance |
JPH06291076A (ja) | 1993-03-31 | 1994-10-18 | Sony Corp | 接合部構造およびその製造方法 |
US5371396A (en) * | 1993-07-02 | 1994-12-06 | Thunderbird Technologies, Inc. | Field effect transistor having polycrystalline silicon gate junction |
JPH1041503A (ja) | 1996-07-23 | 1998-02-13 | Fuji Electric Co Ltd | Mosトランジスタおよびその製造方法 |
US5952701A (en) * | 1997-08-18 | 1999-09-14 | National Semiconductor Corporation | Design and fabrication of semiconductor structure having complementary channel-junction insulated-gate field-effect transistors whose gate electrodes have work functions close to mid-gap semiconductor value |
JP3940560B2 (ja) | 2001-01-25 | 2007-07-04 | 独立行政法人産業技術総合研究所 | 半導体装置の製造方法 |
JP3875570B2 (ja) | 2001-02-20 | 2007-01-31 | 株式会社東芝 | 半導体記憶装置のデータ書き込み方法及び半導体記憶装置 |
JP2006100693A (ja) | 2004-09-30 | 2006-04-13 | Matsushita Electric Ind Co Ltd | 半導体装置及びその製造方法 |
JP2006196061A (ja) | 2005-01-12 | 2006-07-27 | Toshiba Corp | 電圧切換回路、及びこれを用いた半導体記憶装置 |
JP5135004B2 (ja) * | 2008-02-29 | 2013-01-30 | 株式会社東芝 | 不揮発性半導体記憶装置、及びディプレッション型mosトランジスタ |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0645541A (ja) * | 1992-07-22 | 1994-02-18 | Matsushita Electron Corp | 半導体素子の製造方法 |
JP2002158292A (ja) * | 2000-11-20 | 2002-05-31 | Fuji Electric Co Ltd | 基準電圧半導体装置 |
JP2001308210A (ja) * | 2001-03-12 | 2001-11-02 | Fujitsu Ltd | 半導体装置 |
JP2002299475A (ja) * | 2001-03-30 | 2002-10-11 | Toshiba Corp | 半導体装置及びその製造方法 |
JP2004297044A (ja) * | 2003-03-10 | 2004-10-21 | Toshiba Corp | 半導体装置及びその製造方法 |
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US8093664B2 (en) | 2012-01-10 |
KR20090093872A (ko) | 2009-09-02 |
US20110300680A1 (en) | 2011-12-08 |
JP5135004B2 (ja) | 2013-01-30 |
KR101110538B1 (ko) | 2012-01-31 |
US20090218637A1 (en) | 2009-09-03 |
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