CN103137483A - 一种消除沟槽顶端尖角的方法 - Google Patents
一种消除沟槽顶端尖角的方法 Download PDFInfo
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- CN103137483A CN103137483A CN2011103890177A CN201110389017A CN103137483A CN 103137483 A CN103137483 A CN 103137483A CN 2011103890177 A CN2011103890177 A CN 2011103890177A CN 201110389017 A CN201110389017 A CN 201110389017A CN 103137483 A CN103137483 A CN 103137483A
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- etching
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- silicon nitride
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000005530 etching Methods 0.000 claims abstract description 56
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 34
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000003647 oxidation Effects 0.000 claims abstract description 24
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 24
- 238000001312 dry etching Methods 0.000 claims abstract description 12
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000001039 wet etching Methods 0.000 claims description 29
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 14
- 238000000407 epitaxy Methods 0.000 claims description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 238000001947 vapour-phase growth Methods 0.000 claims description 3
- 108010014594 Heterogeneous Nuclear Ribonucleoprotein A1 Proteins 0.000 abstract 3
- 102100035621 Heterogeneous nuclear ribonucleoprotein A1 Human genes 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- 238000010586 diagram Methods 0.000 description 15
- 239000000377 silicon dioxide Substances 0.000 description 12
- 235000012239 silicon dioxide Nutrition 0.000 description 11
- 229910052681 coesite Inorganic materials 0.000 description 9
- 229910052906 cristobalite Inorganic materials 0.000 description 9
- 229910052682 stishovite Inorganic materials 0.000 description 9
- 229910052905 tridymite Inorganic materials 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- MTJGVAJYTOXFJH-UHFFFAOYSA-N 3-aminonaphthalene-1,5-disulfonic acid Chemical compound C1=CC=C(S(O)(=O)=O)C2=CC(N)=CC(S(O)(=O)=O)=C21 MTJGVAJYTOXFJH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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Abstract
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Priority Applications (1)
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CN201110389017.7A CN103137483B (zh) | 2011-11-30 | 2011-11-30 | 一种消除沟槽顶端尖角的方法 |
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CN201110389017.7A CN103137483B (zh) | 2011-11-30 | 2011-11-30 | 一种消除沟槽顶端尖角的方法 |
Publications (2)
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CN103137483A true CN103137483A (zh) | 2013-06-05 |
CN103137483B CN103137483B (zh) | 2015-08-19 |
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CN201110389017.7A Active CN103137483B (zh) | 2011-11-30 | 2011-11-30 | 一种消除沟槽顶端尖角的方法 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103441067A (zh) * | 2013-08-16 | 2013-12-11 | 上海华力微电子有限公司 | 应用于栅极线尾切割的双重图形成型方法 |
CN104347378A (zh) * | 2013-08-09 | 2015-02-11 | 上海华虹宏力半导体制造有限公司 | 一种应用于沟槽型mos器件的沟槽栅的制备方法 |
CN107946175A (zh) * | 2017-11-06 | 2018-04-20 | 上海华虹宏力半导体制造有限公司 | 沟槽外延的填充方法 |
CN109148560A (zh) * | 2018-08-14 | 2019-01-04 | 上海华虹宏力半导体制造有限公司 | 沟槽型超级结的制造方法 |
CN110060919A (zh) * | 2018-01-18 | 2019-07-26 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其形成方法 |
CN111508846A (zh) * | 2020-05-25 | 2020-08-07 | 上海华虹宏力半导体制造有限公司 | 屏蔽栅沟槽型mosfet工艺方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060270181A1 (en) * | 2005-05-25 | 2006-11-30 | Micron Technology, Inc. | Methods of forming integrated circuit devices |
CN101770974A (zh) * | 2008-12-31 | 2010-07-07 | 中芯国际集成电路制造(上海)有限公司 | 浅沟槽隔离结构的制造方法 |
-
2011
- 2011-11-30 CN CN201110389017.7A patent/CN103137483B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060270181A1 (en) * | 2005-05-25 | 2006-11-30 | Micron Technology, Inc. | Methods of forming integrated circuit devices |
CN101770974A (zh) * | 2008-12-31 | 2010-07-07 | 中芯国际集成电路制造(上海)有限公司 | 浅沟槽隔离结构的制造方法 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104347378A (zh) * | 2013-08-09 | 2015-02-11 | 上海华虹宏力半导体制造有限公司 | 一种应用于沟槽型mos器件的沟槽栅的制备方法 |
CN103441067A (zh) * | 2013-08-16 | 2013-12-11 | 上海华力微电子有限公司 | 应用于栅极线尾切割的双重图形成型方法 |
CN103441067B (zh) * | 2013-08-16 | 2016-04-27 | 上海华力微电子有限公司 | 应用于栅极线尾切割的双重图形成型方法 |
CN107946175A (zh) * | 2017-11-06 | 2018-04-20 | 上海华虹宏力半导体制造有限公司 | 沟槽外延的填充方法 |
CN107946175B (zh) * | 2017-11-06 | 2020-08-11 | 上海华虹宏力半导体制造有限公司 | 沟槽外延的填充方法 |
CN110060919A (zh) * | 2018-01-18 | 2019-07-26 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其形成方法 |
CN110060919B (zh) * | 2018-01-18 | 2021-08-06 | 中芯国际集成电路制造(上海)有限公司 | 半导体器件及其形成方法 |
CN109148560A (zh) * | 2018-08-14 | 2019-01-04 | 上海华虹宏力半导体制造有限公司 | 沟槽型超级结的制造方法 |
CN111508846A (zh) * | 2020-05-25 | 2020-08-07 | 上海华虹宏力半导体制造有限公司 | 屏蔽栅沟槽型mosfet工艺方法 |
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CN103137483B (zh) | 2015-08-19 |
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Owner name: SHANGHAI HUAHONG GRACE SEMICONDUCTOR MANUFACTURING Free format text: FORMER OWNER: HUAHONG NEC ELECTRONICS CO LTD, SHANGHAI Effective date: 20140109 |
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Effective date of registration: 20140109 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech Park No. 1399 Applicant after: Shanghai Huahong Grace Semiconductor Manufacturing Corporation Address before: 201206, Shanghai, Pudong New Area, Sichuan Road, No. 1188 Bridge Applicant before: Shanghai Huahong NEC Electronics Co., Ltd. |
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