CN101702405B - 一种平面化厚隔离介质形成方法 - Google Patents
一种平面化厚隔离介质形成方法 Download PDFInfo
- Publication number
- CN101702405B CN101702405B CN2009102328772A CN200910232877A CN101702405B CN 101702405 B CN101702405 B CN 101702405B CN 2009102328772 A CN2009102328772 A CN 2009102328772A CN 200910232877 A CN200910232877 A CN 200910232877A CN 101702405 B CN101702405 B CN 101702405B
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- CN
- China
- Prior art keywords
- silicon
- thickness
- isolation medium
- silicon dioxide
- deep hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000002955 isolation Methods 0.000 title claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 142
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 79
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 79
- 239000010703 silicon Substances 0.000 claims abstract description 79
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 69
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 69
- 238000005530 etching Methods 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 29
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 41
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 41
- 230000003647 oxidation Effects 0.000 claims description 28
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims description 15
- 239000011574 phosphorus Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 238000005260 corrosion Methods 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- 229920002120 photoresistant polymer Polymers 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 7
- LOPFACFYGZXPRZ-UHFFFAOYSA-N [Si].[As] Chemical compound [Si].[As] LOPFACFYGZXPRZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000000407 epitaxy Methods 0.000 claims description 5
- 238000001259 photo etching Methods 0.000 claims description 5
- 238000001020 plasma etching Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 238000001039 wet etching Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052785 arsenic Inorganic materials 0.000 description 11
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical group [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 230000003071 parasitic effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Semiconductor Memories (AREA)
- Weting (AREA)
- Element Separation (AREA)
- Formation Of Insulating Films (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009102328772A CN101702405B (zh) | 2009-10-21 | 2009-10-21 | 一种平面化厚隔离介质形成方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009102328772A CN101702405B (zh) | 2009-10-21 | 2009-10-21 | 一种平面化厚隔离介质形成方法 |
Publications (2)
Publication Number | Publication Date |
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CN101702405A CN101702405A (zh) | 2010-05-05 |
CN101702405B true CN101702405B (zh) | 2011-03-16 |
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CN2009102328772A Expired - Fee Related CN101702405B (zh) | 2009-10-21 | 2009-10-21 | 一种平面化厚隔离介质形成方法 |
Country Status (1)
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CN (1) | CN101702405B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102412148B (zh) * | 2011-07-01 | 2013-09-11 | 上海华虹Nec电子有限公司 | Igbt器件的制备方法 |
CN103578974A (zh) * | 2012-07-18 | 2014-02-12 | 北大方正集团有限公司 | 一种形成氧化层的方法及半导体产品 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6239002B1 (en) * | 1998-10-19 | 2001-05-29 | Taiwan Semiconductor Manufacturing Company | Thermal oxidizing method for forming with attenuated surface sensitivity ozone-teos silicon oxide dielectric layer upon a thermally oxidized silicon substrate layer |
CN1459841A (zh) * | 2002-05-21 | 2003-12-03 | 旺宏电子科技股份有限公司 | 避免锐角的浅沟道隔离制造方法 |
-
2009
- 2009-10-21 CN CN2009102328772A patent/CN101702405B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6239002B1 (en) * | 1998-10-19 | 2001-05-29 | Taiwan Semiconductor Manufacturing Company | Thermal oxidizing method for forming with attenuated surface sensitivity ozone-teos silicon oxide dielectric layer upon a thermally oxidized silicon substrate layer |
CN1459841A (zh) * | 2002-05-21 | 2003-12-03 | 旺宏电子科技股份有限公司 | 避免锐角的浅沟道隔离制造方法 |
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CN101702405A (zh) | 2010-05-05 |
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Application publication date: 20100505 Assignee: YANGZHOU GUOYU ELECTRONICS Co.,Ltd. Assignor: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO.55 Research Institute Contract record no.: 2013320000052 Denomination of invention: Method for forming planar thick isolation medium Granted publication date: 20110316 License type: Exclusive License Record date: 20130227 |
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Assignee: YANGZHOU GUOYU ELECTRONICS Co.,Ltd. Assignor: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO.55 Research Institute Contract record no.: 2013320000052 Date of cancellation: 20151125 |
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Application publication date: 20100505 Assignee: YANGZHOU GUOYU ELECTRONICS Co.,Ltd. Assignor: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO.55 Research Institute Contract record no.: 2015320000653 Denomination of invention: Method for forming planar thick isolation medium Granted publication date: 20110316 License type: Exclusive License Record date: 20151217 |
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Assignee: YANGZHOU GUOYU ELECTRONICS Co.,Ltd. Assignor: CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION NO.55 Research Institute Contract record no.: 2015320000653 Date of cancellation: 20160922 |
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