KR100645849B1 - 반도체장치 - Google Patents
반도체장치 Download PDFInfo
- Publication number
- KR100645849B1 KR100645849B1 KR1020040063645A KR20040063645A KR100645849B1 KR 100645849 B1 KR100645849 B1 KR 100645849B1 KR 1020040063645 A KR1020040063645 A KR 1020040063645A KR 20040063645 A KR20040063645 A KR 20040063645A KR 100645849 B1 KR100645849 B1 KR 100645849B1
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- Prior art keywords
- semiconductor layer
- columnar semiconductor
- layer
- columnar
- silicon
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 371
- 239000000758 substrate Substances 0.000 claims abstract description 106
- 239000012212 insulator Substances 0.000 claims abstract description 58
- 238000009792 diffusion process Methods 0.000 claims abstract description 32
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 72
- 238000000034 method Methods 0.000 claims description 69
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 64
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 55
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 47
- 238000003860 storage Methods 0.000 claims description 22
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 16
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000011856 silicon-based particle Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 340
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 50
- 229910052710 silicon Inorganic materials 0.000 description 50
- 239000010703 silicon Substances 0.000 description 50
- 238000005530 etching Methods 0.000 description 45
- 238000004519 manufacturing process Methods 0.000 description 35
- 125000006850 spacer group Chemical group 0.000 description 23
- 230000000694 effects Effects 0.000 description 22
- 239000000463 material Substances 0.000 description 20
- 238000001020 plasma etching Methods 0.000 description 18
- 230000003647 oxidation Effects 0.000 description 14
- 238000007254 oxidation reaction Methods 0.000 description 14
- 238000005468 ion implantation Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- LPQOADBMXVRBNX-UHFFFAOYSA-N ac1ldcw0 Chemical compound Cl.C1CN(C)CCN1C1=C(F)C=C2C(=O)C(C(O)=O)=CN3CCSC1=C32 LPQOADBMXVRBNX-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
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Abstract
Description
Claims (15)
- 반도체기판 상에 형성되는 제 1도전형의 주상반도체층,상기 주상반도체층의 상부와 하부에 형성되는 제 2도전형의 소스ㆍ드레인 확산층,상기 주상반도체층의 내부에 형성되는 제 2도전형의 반도체층 및,상기 주상반도체층의 측면에 게이트절연막을 개재해서 형성되는 게이트전극을 가지는 메모리 셀을 포함하는 것을 특징으로 하는 반도체장치.
- 반도체기판 상에 형성되는 제 1도전형의 주상반도체층,상기 주상반도체층의 상부와 하부에 형성되는 제 2도전형의 소스ㆍ드레인 확산층,상기 주상반도체층의 내부에 형성되는 제 2도전형의 반도체층 및,상기 주상반도체층의 측면에 전하축적층을 개재해서 형성되는 제어 게이트전극을 가지는 메모리 셀을 포함하는 것을 특징으로 하는 반도체장치.
- 반도체기판 상에 형성되는 제 1도전형의 주상반도체층,상기 주상반도체층의 상부와 하부에 형성되는 제 2도전형의 소스ㆍ드레인 확산층,상기 주상반도체층의 내부에 형성되는 공동 및,상기 주상반도체층의 측면에 게이트절연막을 개재해서 형성되는 게이트전극을 가지는 메모리 셀을 포함하는 것을 특징으로 하는 반도체장치.
- 반도체기판 상에 형성되는 제 1도전형의 주상반도체층,상기 주상반도체층의 상부와 하부에 형성되는 제 2도전형의 소스ㆍ드레인 확산층,상기 주상반도체층의 내부에 형성되는 공동 및,상기 주상반도체층의 측면에 전하축적층을 개재해서 형성되는 제어 게이트전극을 가지는 메모리 셀을 포함하는 것을 특징으로 하는 반도체장치.
- 제 1항 또는 제 3 항에 있어서,상기 메모리 셀은 둘 이상 적층되어 이루어지고, 각 메모리 셀을 구성하는 주상반도체층은, 반도체기판 표면에 대하여 수평방향의 단면적이 단계적으로 작아지도록 적층됨으로써 계단 상의 구조를 가지는 것을 특징으로 하는 반도체장치.
- 제 2항 또는 제 4 항에 있어서,상기 메모리 셀은 둘 이상 적층되어 이루어지고, 각 메모리 셀을 구성하는 주상반도체층은, 반도체기판 표면에 대하여 수평방향의 단면적이 단계적으로 작아지도록 적층됨으로써 계단 상의 구조를 가지는 것을 특징으로 하는 반도체장치.
- 제 6항에 있어서,상기 전하축적층이나 상기 제어 게이트전극은, 계단 상의 구조를 가지는 주상반도체층의 적층체의 단차부와, 이 단차부 바로 위의 주상반도체층의 측면에 걸쳐서 배치되는 것을 특징으로 하는 반도체장치.
- 제 1항 또는 제 2항에 있어서,상기 주상반도체층의 내부에 형성되는 제 2도전형의 반도체층에 접속하고, 상기 제 2도전형의 반도체층의 전위제어를 수행하기 위한 전극을 추가로 가지는 것을 특징으로 하는 반도체장치.
- 제 1항 또는 제2항에 있어서,상기 제 2도전형의 반도체층은, 채널 반전시 상기 주상반도체층이 완전히 공핍될 수 있는 형상 및 크기를 가지는 것을 특징으로 하는 반도체장치.
- 제 3항 또는 제4항에 있어서,상기 공동은, 채널 반전시 상기 주상반도체층이 완전히 공핍될 수 있는 형상 및 크기를 가지는 것을 특징으로 하는 반도체장치.
- 반도체기판 상에 형성되는 주상반도체층,상기 주상반도체층의 상부와 하부에 형성되는 제 2도전형의 소스ㆍ드레인 확산층,상기 주상반도체층의 내부에 형성되는 절연체 및,상기 주상반도체층의 측면에 전하축적층을 개재해서 형성되는 제어 게이트전극으로 구성되는 메모리 셀이 둘 이상 적층되어서 이루어지고;각 메모리 셀을 구성하는 상기 주상반도체층은, 반도체기판 표면에 대하여 수평방향의 단면적이 단계적으로 작아지도록 적층됨으로써 계단 상의 구조를 가지며,상기 계단 상의 구조를 가지는 주상반도체층의 적층체의 단차부와, 이 단차부 바로 위의 주상반도체층의 측면에 걸쳐서 상기 전하축적층이나 상기 제어 게이트전극이 배치되는 것을 특징으로 하는 반도체장치.
- 제 2항, 제 4 항 또는 제 11항 중 어느 한 항에 있어서,상기 전하축적층은 다결정 실리콘으로 이루어지는 부유 게이트전극인 것을 특징으로 하는 반도체장치.
- 제 2항, 제 4 항 또는 제 11항 중 어느 한 항에 있어서,상기 전하축적층은 실리콘산화막-실리콘질화막-실리콘산화막으로 이루어지는 것을 특징으로 하는 반도체장치.
- 제 2항, 제 4 항 또는 제 11항 중 어느 한 항에 있어서,상기 전하축적층은 미세한 다결정 실리콘 입자로 이루어지는 층인 것을 특징으로 하는 반도체장치.
- 제 11항에 있어서,상기 절연체는 채널반전시 상기 주상반도체층이 완전히 공핍될 수 있는 형상 및 크기를 가지는 것을 특징으로 하는 반도체장치.
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JPJP-P-2003-00207340 | 2003-08-12 | ||
JP2003207340A JP2005064031A (ja) | 2003-08-12 | 2003-08-12 | 半導体装置 |
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US (1) | US20050035399A1 (ko) |
EP (1) | EP1507294A3 (ko) |
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FR2910686B1 (fr) * | 2006-12-20 | 2009-04-03 | Commissariat Energie Atomique | Dispositif de memorisation a structure multi-niveaux |
US7745265B2 (en) * | 2007-03-27 | 2010-06-29 | Sandisk 3D, Llc | Method of making three dimensional NAND memory |
US7808038B2 (en) * | 2007-03-27 | 2010-10-05 | Sandisk 3D Llc | Method of making three dimensional NAND memory |
US7514321B2 (en) * | 2007-03-27 | 2009-04-07 | Sandisk 3D Llc | Method of making three dimensional NAND memory |
US7848145B2 (en) | 2007-03-27 | 2010-12-07 | Sandisk 3D Llc | Three dimensional NAND memory |
US7851851B2 (en) * | 2007-03-27 | 2010-12-14 | Sandisk 3D Llc | Three dimensional NAND memory |
US7575973B2 (en) * | 2007-03-27 | 2009-08-18 | Sandisk 3D Llc | Method of making three dimensional NAND memory |
KR100881825B1 (ko) * | 2007-07-27 | 2009-02-03 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조 방법 |
JP2009038201A (ja) | 2007-08-01 | 2009-02-19 | Elpida Memory Inc | 半導体装置および半導体装置の製造方法 |
JP4468433B2 (ja) | 2007-11-30 | 2010-05-26 | 株式会社東芝 | 不揮発性半導体記憶装置 |
JP5364342B2 (ja) * | 2008-11-10 | 2013-12-11 | 株式会社東芝 | 不揮発性半導体記憶装置、及びその製造方法 |
SG165252A1 (en) | 2009-03-25 | 2010-10-28 | Unisantis Electronics Jp Ltd | Semiconductor device and production method therefor |
JP5032532B2 (ja) | 2009-06-05 | 2012-09-26 | ユニサンティス エレクトロニクス シンガポール プライベート リミテッド | 半導体装置及びその製造方法 |
JP5006378B2 (ja) * | 2009-08-11 | 2012-08-22 | ユニサンティス エレクトロニクス シンガポール プライベート リミテッド | 半導体装置及びその製造方法 |
JP5006379B2 (ja) | 2009-09-16 | 2012-08-22 | ユニサンティス エレクトロニクス シンガポール プライベート リミテッド | 半導体装置 |
JP2011165815A (ja) * | 2010-02-08 | 2011-08-25 | Toshiba Corp | 不揮発性半導体記憶装置 |
JP2012054334A (ja) * | 2010-08-31 | 2012-03-15 | Elpida Memory Inc | 半導体デバイス及びその製造方法 |
US8921899B2 (en) * | 2010-11-19 | 2014-12-30 | Micron Technology, Inc. | Double gated 4F2 dram CHC cell and methods of fabricating the same |
WO2012119053A1 (en) * | 2011-03-02 | 2012-09-07 | King Abdullah University Of Science And Technology | Cylindrical-shaped nanotube field effect transistor |
WO2014203303A1 (ja) * | 2013-06-17 | 2014-12-24 | ユニサンティス エレクトロニクス シンガポール プライベート リミテッド | 半導体装置の製造方法、及び、半導体装置 |
US9018064B2 (en) * | 2013-07-10 | 2015-04-28 | Varian Semiconductor Equipment Associates, Inc. | Method of doping a polycrystalline transistor channel for vertical NAND devices |
US9570514B2 (en) | 2014-06-06 | 2017-02-14 | Kabushiki Kaisha Toshiba | Semiconductor device |
US9406793B2 (en) * | 2014-07-03 | 2016-08-02 | Broadcom Corporation | Semiconductor device with a vertical channel formed through a plurality of semiconductor layers |
JP6306233B1 (ja) * | 2017-02-28 | 2018-04-04 | ウィンボンド エレクトロニクス コーポレーション | フラッシュメモリおよびその製造方法 |
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JPH03187272A (ja) * | 1989-12-15 | 1991-08-15 | Mitsubishi Electric Corp | Mos型電界効果トランジスタ及びその製造方法 |
JPH06334146A (ja) * | 1993-05-26 | 1994-12-02 | Toshiba Corp | 半導体装置 |
JP3428124B2 (ja) * | 1994-03-15 | 2003-07-22 | 三菱電機株式会社 | Mis型トランジスタおよびその製造方法 |
KR100193102B1 (ko) * | 1994-08-25 | 1999-06-15 | 무명씨 | 반도체 장치 및 그 제조방법 |
US5929477A (en) * | 1997-01-22 | 1999-07-27 | International Business Machines Corporation | Self-aligned diffused source vertical transistors with stack capacitors in a 4F-square memory cell array |
US6664143B2 (en) * | 2000-11-22 | 2003-12-16 | North Carolina State University | Methods of fabricating vertical field effect transistors by conformal channel layer deposition on sidewalls |
US6424001B1 (en) * | 2001-02-09 | 2002-07-23 | Micron Technology, Inc. | Flash memory with ultra thin vertical body transistors |
US6627924B2 (en) * | 2001-04-30 | 2003-09-30 | Ibm Corporation | Memory system capable of operating at high temperatures and method for fabricating the same |
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