JP5579280B2 - Cmos垂直置換ゲート(vrg)トランジスタ - Google Patents
Cmos垂直置換ゲート(vrg)トランジスタ Download PDFInfo
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- JP5579280B2 JP5579280B2 JP2013003034A JP2013003034A JP5579280B2 JP 5579280 B2 JP5579280 B2 JP 5579280B2 JP 2013003034 A JP2013003034 A JP 2013003034A JP 2013003034 A JP2013003034 A JP 2013003034A JP 5579280 B2 JP5579280 B2 JP 5579280B2
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- 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
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- 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
- H01L21/823885—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of vertical transistor structures, i.e. with channel vertical to the substrate surface
-
- 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
- H01L27/08—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 only semiconductor components of a single kind
- H01L27/085—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 only semiconductor components of a single kind including field-effect components only
- H01L27/088—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 only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
- H01L27/092—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 only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate complementary MIS field-effect transistors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Recrystallisation Techniques (AREA)
- Element Separation (AREA)
Description
CMOS半導体デバイスの使用を更に進展させるために、望ましい空間の節約及びVGRデバイスに付随した作製上の進歩とともに、どこにもあるCMOSデバイスの両方の利点を提供する垂直置換ゲート(VRG)CMOSデバイスを生成する形態を供する。
ここで述べる実施例には、CMOS構造と付随した作製技術が含まれる。CMOS垂直MOSFETを作製するプロセスについては、1999年1月18日に出願され、ここに参照文献として含まれる“垂直トランジスタを有するCMOS集積回路及びその作製プロセス”と題する権利者を同じくする特許出願、米国第290,533号に述べられている。(NMOS又はPMOS形の)垂直MOSFETの構造及び作製に関するより一般的な記述は、権利者を同じくし、ここに参照文献として含まれる米国特許第6,027,975号及び6,197,641号に述べられている。
9 基板
10,12 LOCOS領域
14 ゲート
16 ソース領域
18 ドレイン領域
20 n形井戸
28 ゲート
30 ソース領域
32 ドレイン領域
34 p形井戸
38 ゲート
40 ソース領域
42 ドレイン領域
44 n形井戸
46 二酸化シリコン層
50 p+領域
52 p層
100 層、単結晶半導体層、基板
106 主表面
108 エピタキシャル層
110 二酸化シリコン層、層
112 層、シリコン窒化物層
114 n領域
116 タンク酸化物層
118 面
120 p領域
122 段差
130 トレンチ
132 表面
134 二酸化シリコン層
140 二酸化シリコン層
142 テトラエチレン−オルト−シリケート層、PTEOS層、層
144 シリコン窒化物、層
146 BTEOS層
150 エッチストップ層、層
152 犠牲層、層
154 エッチストップ層
160 PTEOS絶縁層、PTEOS層、層
162 シリコン窒化物層
164 BTEOS層、層
200,202 窓
204,206 結晶半導体材料、結晶半導体
207 シリコン窒化物層
208,210 ポリシリコン層、ドレイン領域
212,220 エッチストップ層
226,227 ゲート誘電体
230 層
232 ゲート電極、層
240,242 ゲート
250,252 ソース/ドレイン延長部
260,262 チャネル
300 TEOS層
302 シリコン窒化物
306 PTEOS層
308 シリコン窒化物層
310 PTEOS層
Claims (8)
- 平面に沿って形成された主表面を有する半導体層;
表面中に形成された第1及び第2の空間的に分離されたドープ領域;
前記第1及び第2の領域を電気的に絶縁するために、前記第1及び前記第2の領域間に配置された分離領域;前記分離領域は第1及び第2のドープ領域間に配置された電気的に絶縁性材料のトレンチと、第1及び第2のドープ領域上の電気的に絶縁性材料の層を含み、
第1及び第2のトレンチを中に含む前記第1及び前記第2のドープ領域上の複数のドープされた絶縁層;
前記第1のドープ領域とは異なる伝導形の前記第1のドープ領域上の前記第1のトレンチ中に形成された第3のドープ領域;
前記第2のドープ領域とは異なる伝導形の前記第2のドープ領域上の前記第2のトレンチ中に形成された第4のドープ領域;
前記第3のドープ領域に近接した第1の酸化物層;
前記第4のドープ領域に近接した第2の酸化物層;
第1のドープ領域は第1のMOSFETの第1のソース/ドレイン領域で、第3のドープ領域は第1のMOSFETのチャネル領域で、第2のドープ領域は第2のMOSFETの第1のソース/ドレイン領域で、第4のドープ領域は第2のMOSFETのチャネル領域であり、
前記第1のドープ領域上の第5のドープ領域;前記第1のドープ領域と前記第5ドープ領域間には、前記第3のドープ領域及び少なくとも一つの前記ドープされた絶縁層が介在し、前記第5のドープ領域は前記第1のMOSFETの第2のソース/ドレイン領域であり、
前記第2のドープ領域上の第6のドープ領域;前記第2のドープ領域と前記第6ドープ領域間には、前記第4のドープ領域及び少なくとも一つの前記ドープされた絶縁層が介在し、前記第6のドープ領域は前記第2のMOSFETの第2のソース/ドレイン領域であり、
第1のゲート電極;前記第1のゲート電極の一部は前記第1及び第5のドープ領域間に位置付けられ、及び
第2のゲート電極を含み;前記第2のゲート電極の一部は前記第2及び第6のドープ領域間に位置付けられる
集積回路構造。 - 第1及び第2のMOSFETはトランジスタの相補MOSFET対を形成する請求項1記載の集積回路構造。
- 分離領域の材料は、電気的に絶縁性の材料を含む請求項1記載の集積回路構造。
- 分離領域の材料は、二酸化シリコンを含む請求項1記載の集積回路構造。
- 第1のトレンチ中の第3のドープ領域上の部分及び第2のトレンチ中の第4のドープ領域上の部分を露出させるため、複数の層の1つを除去し、第1の酸化物層は第3のドープ領域の前記露出された部分に近接し、第2の酸化物層は第4のドープ領域の前記露出された部分に近接する請求項1記載の集積回路構造。
- 第1及び第2の導電性要素はポリシリコンを含み、それぞれ第1及び第2のMOSFETのゲートとして動作する請求項1記載の集積回路構造。
- 複数の層の少くとも1つは、第3及び第4のドープ領域中にドーパントを拡散させるためのドーパント源として働くドープ絶縁層を含む請求項1記載の集積回路構造。
- 第3及び第4のドープ領域のそれぞれは、チャネル領域を形成し、ドープ絶縁領域から拡散したドーパントは、各チャネル領域内にソース/ドレイン延長部を形成する請求項7記載の集積回路構造。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/036,020 US6773994B2 (en) | 2001-12-26 | 2001-12-26 | CMOS vertical replacement gate (VRG) transistors |
US10/036020 | 2001-12-26 |
Related Parent Applications (1)
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JP2002371914A Division JP5220257B2 (ja) | 2001-12-26 | 2002-12-24 | Cmos垂直置換ゲート(vrg)トランジスタ |
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JP2013102193A JP2013102193A (ja) | 2013-05-23 |
JP5579280B2 true JP5579280B2 (ja) | 2014-08-27 |
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JP2002371914A Expired - Fee Related JP5220257B2 (ja) | 2001-12-26 | 2002-12-24 | Cmos垂直置換ゲート(vrg)トランジスタ |
JP2013003034A Expired - Lifetime JP5579280B2 (ja) | 2001-12-26 | 2013-01-11 | Cmos垂直置換ゲート(vrg)トランジスタ |
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Country Status (5)
Country | Link |
---|---|
US (1) | US6773994B2 (ja) |
JP (2) | JP5220257B2 (ja) |
KR (1) | KR100905210B1 (ja) |
GB (1) | GB2383685B (ja) |
TW (1) | TW550811B (ja) |
Families Citing this family (61)
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US6706603B2 (en) * | 2001-02-23 | 2004-03-16 | Agere Systems Inc. | Method of forming a semiconductor device |
US6940125B2 (en) * | 2002-08-19 | 2005-09-06 | Silicon Storage Technology, Inc. | Vertical NROM and methods for making thereof |
JP4355807B2 (ja) * | 2002-08-28 | 2009-11-04 | 独立行政法人産業技術総合研究所 | 二重ゲート型mos電界効果トランジスタ及びその作製方法 |
US6632712B1 (en) * | 2002-10-03 | 2003-10-14 | Chartered Semiconductor Manufacturing Ltd. | Method of fabricating variable length vertical transistors |
JP4002219B2 (ja) * | 2003-07-16 | 2007-10-31 | 株式会社ルネサステクノロジ | 半導体装置及び半導体装置の製造方法 |
US7667250B2 (en) * | 2004-07-16 | 2010-02-23 | Aptina Imaging Corporation | Vertical gate device for an image sensor and method of forming the same |
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GB2383685A (en) | 2003-07-02 |
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