JP4256742B2 - 一体化した金属絶縁体金属コンデンサおよび金属ゲート・トランジスタの形成方法 - Google Patents
一体化した金属絶縁体金属コンデンサおよび金属ゲート・トランジスタの形成方法 Download PDFInfo
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- JP4256742B2 JP4256742B2 JP2003288276A JP2003288276A JP4256742B2 JP 4256742 B2 JP4256742 B2 JP 4256742B2 JP 2003288276 A JP2003288276 A JP 2003288276A JP 2003288276 A JP2003288276 A JP 2003288276A JP 4256742 B2 JP4256742 B2 JP 4256742B2
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- 229910052751 metal Inorganic materials 0.000 title claims description 131
- 239000002184 metal Substances 0.000 title claims description 131
- 239000003990 capacitor Substances 0.000 title claims description 66
- 239000012212 insulator Substances 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 34
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 12
- 238000000059 patterning Methods 0.000 claims description 2
- 238000004377 microelectronic Methods 0.000 description 17
- 239000000463 material Substances 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910052454 barium strontium titanate Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28194—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation by deposition, e.g. evaporation, ALD, CVD, sputtering, laser deposition
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- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
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- H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
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Description
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22
全に上側プレート、ゲートおよびソース・コンタクトを形成することができる。本発明の
処理を用いなければ、金属層2800は、図12に示すような凹凸のある(非平坦な)形
状150を有することになる。より詳細には、図4に示す平坦化プロセスが平坦な表面を
もたらし、この平坦な表面によって、残りの処理において一様かつ平坦な表面を維持する
ことができる。図12に示すような構造では、コンタクトやコンデンサ・プレートなどが
本発明の構造で得られるほど信頼性の高い電気的接続部にはならないので、歩留りが低下
することになる。したがって、本発明の構造は、従来の構造に比べて非常に高い歩留りお
よび信頼性を有する。
絶縁体によって分離された金属プレートを有するコンデンサと、
前記コンデンサに電気的に接続された、金属ゲートを有する半導体トランジスタとを含
む集積回路構造。
(2)前記金属ゲートと前記金属プレートの1つとが、前記集積回路構造内で同じ金属レ
ベルを含む、上記(1)に記載の集積回路構造。
(3)前記コンデンサが、下側金属プレートの垂直方向上方に上側金属プレートを有する
垂直コンデンサを含む、上記(1)に記載の集積回路構造。
(4)前記金属ゲートと前記上側金属プレートとが、前記集積回路構造内で同じ金属レベ
ルを含む、上記(3)に記載の集積回路構造。
(5)前記トランジスタが、下側金属プレートに接続されたドレイン領域を含む、上記(
3)に記載の集積回路構造。
(6)集積回路構造であって、
絶縁体によって分離された金属プレートをそれぞれ有する一対のコンデンサと、
前記コンデンサの1つとそれぞれ電気的に接続された半導体トランジスタとを含み、
前記半導体トランジスタのそれぞれが金属ゲートを有する集積回路構造。
(7)前記トランジスタの前記それぞれの金属ゲートと前記コンデンサのそれぞれの前記
金属プレートの1つとが、前記集積回路構造内で同じ金属レベルを含む、上記(6)に記
載の集積回路構造。
(8)前記コンデンサのそれぞれが、下側金属プレートの垂直方向上方に上側金属プレー
トを有する垂直コンデンサを含む、上記(6)に記載の集積回路構造。
(9)前記トランジスタの前記それぞれの金属ゲートと前記コンデンサの前記それぞれの
上側金属プレートとが、前記集積回路構造内で同じ金属レベルを含む、上記(8)に記載
の集積回路構造。
(10)前記トランジスタのそれぞれが、隣接するコンデンサの下側金属プレートに接続
されたドレイン領域を含む、上記(8)に記載の集積回路構造。
(11)金属絶縁体金属コンデンサと、これと関連づけられた金属ゲートを有する半導体
トランジスタとを形成する方法であって、
第1の金属層を形成するステップと、
前記第1の金属層の上に絶縁体を形成するステップと、
前記第1の金属層の一部分をゲート領域から除去するステップと、
前記絶縁体の上、前記ゲート領域内に、第2の金属層を形成するステップとを含み、
前記第2の金属層が、前記トランジスタのゲートおよび前記コンデンサのプレートを含
む方法。
(12)犠牲ゲート構造に隣接する側壁スペーサを形成するステップをさらに含み、前記
第1の金属層を前記側壁スペーサの上に形成する、上記(11)に記載の方法。
(13)前記側壁スペーサを形成する前記ステップの後で、前記基板中のソース領域およ
びドレイン領域にドーピングするステップをさらに含む、上記(11)に記載の方法。
(14)前記第1の金属層を平坦化するステップをさらに含む、上記(11)に記載の方
法。
(15)前記第1の金属層を平坦化する前記ステップにより、前記第2の金属層のボイド
および表面の凹凸が減少する、上記(14)に記載の方法。
(16)前記第1の金属層の上に絶縁体を形成するステップをさらに含む、上記(11)
に記載の方法。
(17)前記絶縁体が、コンデンサの絶縁体およびゲート絶縁体の両方を含む、上記(1
6)に記載の方法。
(18)前記プレートが、前記コンデンサの上側プレートを含む、上記(11)に記載の
方法。
(19)金属絶縁体金属コンデンサと、これと関連づけられた金属ゲートを有する半導体
トランジスタとを形成する方法であって、
基板の上の犠牲ゲート構造をパターン形成するステップと、
前記犠牲ゲート構造と隣接する側壁スペーサを形成するステップと、
前記側壁スペーサと隣接する第1の金属層を形成するステップと、
前記第1の金属層を平坦化するステップと、
前記犠牲ゲート構造を除去するステップと、
前記第1の金属層の上に絶縁体を形成するステップと、
前記第1の金属層の一部分をゲート領域から除去するステップと、
前記絶縁体の上、前記ゲート領域内に、第2の金属層を形成するステップとを含み、
前記第2の金属層が、前記トランジスタのゲートおよび前記コンデンサのプレートを含
む方法。
(20)前記第1の金属層を平坦化する前記ステップにより、前記第2の金属層のボイド
および表面の凹凸が減少する、上記(19)に記載の方法。
(21)前記絶縁体が、コンデンサの絶縁体およびゲート絶縁体の両方を含む、上記(1
9)に記載の方法。
(22)前記側壁スペーサを形成する前記ステップの後で、前記基板中のソース領域およ
びドレイン領域にドーピングするステップをさらに含む、上記(19)に記載の方法。
(23)前記プレートが、前記コンデンサの上側プレートを含む、上記(21)に記載の
方法。
1601 共通ソース
1602 ドレイン領域
2400 絶縁体
3000 コンデンサ・プレート
3100 ゲート
3300 ゲート
3400 コンデンサ・プレート
3500 ノード・プレート
3700 ノード・プレート
Claims (1)
- 金属絶縁体金属コンデンサと、前記金属絶縁体金属コンデンサがドレイン領域に接触された、金属ゲートを有する半導体トランジスタとを形成する方法であって、
基板の上の犠牲ゲート構造をパターン形成するステップと、
前記犠牲ゲート構造と隣接する側壁スペーサを形成するステップと、
前記側壁スペーサと隣接し、後に前記金属絶縁体金属コンデンサの下側プレートを構成する、第1の金属層を形成するステップと、
前記第1の金属層を平坦化するステップと、
前記犠牲ゲート構造を除去するステップと、
前記第1の金属層の上に絶縁体を形成するステップと、
前記半導体トランジスタのソース領域上に形成された前記第1の金属層及び前記絶縁体を除去するステップと、
前記絶縁体の上、前記犠牲ゲート構造が除去されたゲート領域内及び前記ソース領域上に形成された前記第1の金属層及び前記絶縁体が除去された領域内に、第2の金属層を形成するステップと、
前記第2の金属層が、前記トランジスタのゲート、前記金属絶縁体金属コンデンサの上側プレート及びソースコンタクトを構成することを含む方法。
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US10/224,899 US6787836B2 (en) | 2002-08-21 | 2002-08-21 | Integrated metal-insulator-metal capacitor and metal gate transistor |
Publications (2)
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JP2004080031A JP2004080031A (ja) | 2004-03-11 |
JP4256742B2 true JP4256742B2 (ja) | 2009-04-22 |
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JP2003288276A Expired - Lifetime JP4256742B2 (ja) | 2002-08-21 | 2003-08-06 | 一体化した金属絶縁体金属コンデンサおよび金属ゲート・トランジスタの形成方法 |
Country Status (5)
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---|---|
US (2) | US6787836B2 (ja) |
JP (1) | JP4256742B2 (ja) |
KR (1) | KR100544547B1 (ja) |
CN (1) | CN1290199C (ja) |
TW (1) | TWI232002B (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7271083B2 (en) * | 2004-07-22 | 2007-09-18 | Taiwan Semiconductor Manufacturing Company, Ltd. | One-transistor random access memory technology compatible with metal gate process |
US7718479B2 (en) * | 2004-08-25 | 2010-05-18 | Intel Corporation | Forming integrated circuits with replacement metal gate electrodes |
FR2879344B1 (fr) * | 2004-12-10 | 2007-03-16 | St Microelectronics Sa | Realisation d'un condensateur integre |
US7163853B2 (en) * | 2005-02-09 | 2007-01-16 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of manufacturing a capacitor and a metal gate on a semiconductor device |
US7666776B2 (en) * | 2005-09-01 | 2010-02-23 | Micron Technology, Inc. | Methods of forming conductive structures |
US7851861B2 (en) * | 2007-01-22 | 2010-12-14 | Taiwan Semiconductor Manufacturing Co., Ltd. | MIM capacitor and metal gate transistor |
US8716081B2 (en) * | 2007-03-15 | 2014-05-06 | Globalfoundries Singapore Pte. Ltd. | Capacitor top plate over source/drain to form a 1T memory device |
US8017997B2 (en) * | 2008-12-29 | 2011-09-13 | International Business Machines Corporation | Vertical metal-insulator-metal (MIM) capacitor using gate stack, gate spacer and contact via |
US7939877B2 (en) * | 2009-03-23 | 2011-05-10 | Micron Technology, Inc. | DRAM unit cells, capacitors, methods of forming DRAM unit cells, and methods of forming capacitors |
TWI490949B (zh) * | 2010-08-23 | 2015-07-01 | United Microelectronics Corp | 具有金屬閘極之電晶體及其製作方法 |
CN102956437B (zh) * | 2011-08-17 | 2015-05-13 | 中芯国际集成电路制造(上海)有限公司 | 具有金属栅极的半导体器件上的制造电容器方法及电容器 |
US9969613B2 (en) | 2013-04-12 | 2018-05-15 | International Business Machines Corporation | Method for forming micro-electro-mechanical system (MEMS) beam structure |
US9490252B1 (en) | 2015-08-05 | 2016-11-08 | International Business Machines Corporation | MIM capacitor formation in RMG module |
US10312318B2 (en) | 2015-09-22 | 2019-06-04 | International Business Machines Corporation | Metal-insulator-metal capacitor structure |
US9564428B1 (en) | 2015-12-15 | 2017-02-07 | International Business Machines Corporation | Forming metal-insulator-metal capacitor |
US9893145B1 (en) | 2016-08-09 | 2018-02-13 | International Business Machines Corporation | On chip MIM capacitor |
US10388572B2 (en) | 2017-03-06 | 2019-08-20 | International Business Machines Corporation | Integrating metal-insulator-metal capacitors with fabrication of vertical field effect transistors |
JP6981601B2 (ja) * | 2018-05-29 | 2021-12-15 | 住友電工デバイス・イノベーション株式会社 | 半導体装置の製造方法 |
US11069676B2 (en) * | 2019-09-27 | 2021-07-20 | Nanya Technology Corporation | Semiconductor device and method for fabricating the same |
TWI696177B (zh) | 2019-10-02 | 2020-06-11 | 力晶積成電子製造股份有限公司 | 用於雙電晶體靜態隨機存取記憶體的位元線結構 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2616569B2 (ja) * | 1994-09-29 | 1997-06-04 | 日本電気株式会社 | 半導体集積回路装置の製造方法 |
US5631188A (en) * | 1995-12-27 | 1997-05-20 | Taiwan Semiconductor Manufacturing Company Ltd. | Low voltage coefficient polysilicon capacitor |
US5903493A (en) | 1997-09-17 | 1999-05-11 | Lucent Technologies Inc. | Metal to metal capacitor apparatus and method for making |
US6130123A (en) | 1998-06-30 | 2000-10-10 | Intel Corporation | Method for making a complementary metal gate electrode technology |
US6049114A (en) | 1998-07-20 | 2000-04-11 | Motorola, Inc. | Semiconductor device having a metal containing layer overlying a gate dielectric |
US6165858A (en) | 1998-11-25 | 2000-12-26 | Advanced Micro Devices | Enhanced silicidation formation for high speed MOS device by junction grading with dual implant dopant species |
JP3023355B1 (ja) * | 1998-12-25 | 2000-03-21 | 松下電器産業株式会社 | 半導体装置及びその製造方法 |
US6057583A (en) | 1999-01-06 | 2000-05-02 | Advanced Micro Devices, Inc. | Transistor with low resistance metal source and drain vertically displaced from the channel |
US6198617B1 (en) | 1999-01-12 | 2001-03-06 | United Microelectronics Corp. | Multi-layer metal capacitor |
US6033963A (en) | 1999-08-30 | 2000-03-07 | Taiwan Semiconductor Manufacturing Company | Method of forming a metal gate for CMOS devices using a replacement gate process |
US6159818A (en) * | 1999-09-02 | 2000-12-12 | Micron Technology, Inc. | Method of forming a container capacitor structure |
JP3966658B2 (ja) | 1999-11-16 | 2007-08-29 | 株式会社リコー | 半導体装置の製造方法 |
US6285038B1 (en) * | 2000-03-01 | 2001-09-04 | Micron Technology, Inc. | Integrated circuitry and DRAM integrated circuitry |
KR100350056B1 (ko) * | 2000-03-09 | 2002-08-24 | 삼성전자 주식회사 | 다마신 게이트 공정에서 자기정렬콘택패드 형성 방법 |
US6341056B1 (en) * | 2000-05-17 | 2002-01-22 | Lsi Logic Corporation | Capacitor with multiple-component dielectric and method of fabricating same |
JP3669919B2 (ja) * | 2000-12-04 | 2005-07-13 | シャープ株式会社 | 半導体装置の製造方法 |
US6451667B1 (en) * | 2000-12-21 | 2002-09-17 | Infineon Technologies Ag | Self-aligned double-sided vertical MIMcap |
JP2004363355A (ja) * | 2003-06-05 | 2004-12-24 | Hitachi Ltd | 半導体装置及びその製造方法 |
JP2005026586A (ja) * | 2003-07-04 | 2005-01-27 | Semiconductor Leading Edge Technologies Inc | 半導体装置及びその製造方法 |
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KR20040018132A (ko) | 2004-03-02 |
TWI232002B (en) | 2005-05-01 |
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US6787836B2 (en) | 2004-09-07 |
US20040166626A1 (en) | 2004-08-26 |
TW200403871A (en) | 2004-03-01 |
CN1485924A (zh) | 2004-03-31 |
US20040038474A1 (en) | 2004-02-26 |
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KR100544547B1 (ko) | 2006-01-24 |
JP2004080031A (ja) | 2004-03-11 |
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