JP2005150677A - フラッシュメモリ素子の高電圧トランジスタ - Google Patents
フラッシュメモリ素子の高電圧トランジスタ Download PDFInfo
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- JP2005150677A JP2005150677A JP2004177972A JP2004177972A JP2005150677A JP 2005150677 A JP2005150677 A JP 2005150677A JP 2004177972 A JP2004177972 A JP 2004177972A JP 2004177972 A JP2004177972 A JP 2004177972A JP 2005150677 A JP2005150677 A JP 2005150677A
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- Prior art keywords
- concentration impurity
- impurity region
- voltage transistor
- gate electrode
- high voltage
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- 239000012535 impurity Substances 0.000 claims abstract description 85
- 239000000758 substrate Substances 0.000 claims description 21
- 239000004065 semiconductor Substances 0.000 claims description 16
- 239000011229 interlayer Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052785 arsenic Inorganic materials 0.000 claims description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 13
- 150000002500 ions Chemical class 0.000 description 7
- 230000015556 catabolic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 238000000151 deposition Methods 0.000 description 2
- 239000002784 hot electron Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000005689 Fowler Nordheim tunneling Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
-
- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
【解決手段】高濃度不純物領域とこれを取り囲む低濃度不純物領域とからなるDDD構造のソース/ドレイン接合部において、コンタクトホールが形成されるべき位置だけ離隔した距離にゲート電極と平行に形成された高濃度不純物領域を含む。
【選択図】図5
Description
12、53 素子分離膜
13、23 ゲート絶縁膜
14、25 ゲート電極
15、55 層間絶縁膜
16、56 コンタクトホール
17、57 コンタクトプラグ
18、58 金属配線
20、60 低濃度不純物領域
21、61 高濃度不純物領域
221、661 ソース/ドレイン接合部
Claims (8)
- 高濃度不純物領域とこれを取り囲む低濃度不純物領域とからなるDDD構造のソース/ドレイン接合部において、コンタクトホールが形成されるべき位置だけ離隔した距離にゲート電極と平行に形成された高濃度不純物領域を含む高電圧トランジスタ。
- 前記高濃度不純物領域は、その幅がコンタクトホールの幅と同一又はより広く、長さが前記ゲート電極の通るアクティブ領域の幅より同一又はより短い長方形に形成することを特徴とする請求項1記載の高電圧トランジスタ。
- 前記低濃度不純物領域は、燐を60〜70keV及び3E12〜5E12atoms/cm2の条件で注入して形成することを特徴とする請求項1記載の高電圧トランジスタ。
- 前記高濃度不純物領域は、アーセニックを20〜30keV及び2E15〜5E15atoms/cm2の条件で注入して形成することを特徴とする請求項1記載の高電圧トランジスタ。
- 素子分離膜によって定義されたアクティブ領域の半導体基板上に形成されたゲート絶縁膜と、
前記ゲート絶縁膜上に形成されたゲート電極と、
前記ゲート電極の両側の前記半導体基板に形成された低濃度不純物領域と、
前記ゲート電極から一定の距離離隔して前記ゲート電極と平行に形成された高濃度不純物領域と、
前記高濃度不純物領域を含んだ全体構造上に形成された層間絶縁膜と、
前記高濃度不純物領域の一部が底面を成して前記層間絶縁膜に形成されたコンタクトホールと、
前記コンタクトホールに導電物を充填して形成されたコンタクトプラグと、
前記コンタクトプラグに電気的に連連結され、前記層間絶縁膜上に形成された金属配線とを含むことを特徴とする高電圧トランジスタ。 - 前記高濃度不純物領域は、前記低濃度不純物領域に取り囲まれ、幅が前記コンタクトホールの幅と同一又はより広く、長さが前記ゲート電極の通るアクティブ領域の幅より同一又はより短い長方形に形成することを特徴とする請求項5記載の高電圧トランジスタ。
- 前記低濃度不純物領域は燐を60〜70keV及び3E12〜5E12atoms/cm2の条件で注入して形成することを特徴とする請求項5記載の高電圧トランジスタ。
- 前記高濃度不純物領域は、アーセニックを20〜30keV及び2E15〜5E15atoms/cm2の条件で注入して形成することを特徴とする請求項5記載の高電圧トランジスタ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2003-0081957A KR100538886B1 (ko) | 2003-11-19 | 2003-11-19 | 플래쉬 메모리 소자의 고전압 트랜지스터 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2005150677A true JP2005150677A (ja) | 2005-06-09 |
Family
ID=34567812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004177972A Pending JP2005150677A (ja) | 2003-11-19 | 2004-06-16 | フラッシュメモリ素子の高電圧トランジスタ |
Country Status (4)
Country | Link |
---|---|
US (1) | US7034360B2 (ja) |
JP (1) | JP2005150677A (ja) |
KR (1) | KR100538886B1 (ja) |
DE (1) | DE102004028138A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100751667B1 (ko) * | 2005-09-21 | 2007-08-23 | 주식회사 하이닉스반도체 | 고전압 트랜지스터와 이를 포함하는 플래시 메모리 장치의블록 선택 회로 및 고전압 트랜지스터의 제조 방법 |
KR100792369B1 (ko) * | 2006-01-13 | 2008-01-09 | 주식회사 하이닉스반도체 | 플래시메모리소자 및 그의 제조 방법 |
KR100732637B1 (ko) | 2006-05-30 | 2007-06-28 | 삼성전자주식회사 | 고전압 트랜지스터를 설계하는 방법 및 이를 이용하여형성된 고전압 트랜지스터를 포함하는 반도체 장치 |
KR100899739B1 (ko) | 2007-09-27 | 2009-05-27 | 주식회사 동부하이텍 | 반도체 메모리 소자 |
CN101719513B (zh) * | 2009-11-26 | 2012-09-19 | 上海宏力半导体制造有限公司 | 30v双扩散mos器件及18v双扩散mos器件 |
US9349452B2 (en) | 2013-03-07 | 2016-05-24 | Sandisk Technologies Inc. | Hybrid non-volatile memory cells for shared bit line |
US9165656B2 (en) * | 2013-03-11 | 2015-10-20 | Sandisk Technologies Inc. | Non-volatile storage with shared bit lines and flat memory cells |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5783471A (en) * | 1992-10-30 | 1998-07-21 | Catalyst Semiconductor, Inc. | Structure and method for improved memory arrays and improved electrical contacts in semiconductor devices |
JP2000012711A (ja) | 1998-06-23 | 2000-01-14 | Nec Corp | 半導体装置及び半導体装置の製造方法 |
US6346442B1 (en) * | 1999-02-04 | 2002-02-12 | Tower Semiconductor Ltd. | Methods for fabricating a semiconductor chip having CMOS devices and a fieldless array |
KR100450666B1 (ko) * | 2001-09-03 | 2004-10-01 | 삼성전자주식회사 | 선택적 실리사이드막의 형성 방법 및 이를 구비한 반도체소자 |
-
2003
- 2003-11-19 KR KR10-2003-0081957A patent/KR100538886B1/ko active IP Right Grant
-
2004
- 2004-06-10 DE DE102004028138A patent/DE102004028138A1/de not_active Ceased
- 2004-06-16 JP JP2004177972A patent/JP2005150677A/ja active Pending
- 2004-06-28 US US10/878,273 patent/US7034360B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20050104123A1 (en) | 2005-05-19 |
DE102004028138A1 (de) | 2005-06-23 |
KR20050048113A (ko) | 2005-05-24 |
US7034360B2 (en) | 2006-04-25 |
KR100538886B1 (ko) | 2005-12-23 |
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