CN111128784B - 一种测量二氧化硅薄膜致密性的方法 - Google Patents
一种测量二氧化硅薄膜致密性的方法 Download PDFInfo
- Publication number
- CN111128784B CN111128784B CN201911408772.8A CN201911408772A CN111128784B CN 111128784 B CN111128784 B CN 111128784B CN 201911408772 A CN201911408772 A CN 201911408772A CN 111128784 B CN111128784 B CN 111128784B
- Authority
- CN
- China
- Prior art keywords
- silicon dioxide
- dioxide film
- hydrofluoric acid
- silicon
- film
- 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.)
- Active
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 235000012239 silicon dioxide Nutrition 0.000 title claims abstract description 49
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000002019 doping agent Substances 0.000 claims abstract description 5
- 239000013078 crystal Substances 0.000 claims abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 54
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 24
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 229910000077 silane Inorganic materials 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012159 carrier gas Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 235000012431 wafers Nutrition 0.000 description 18
- 238000012544 monitoring process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005247 gettering Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—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
- 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
本发明涉及一种测量方法,尤其涉及一种测量二氧化硅薄膜致密性的方法。准备好经过清洗后的单晶硅晶圆作为原料,单晶硅晶圆的规格:8英寸,即直径为200mm,厚度为735μm,掺杂剂为B,晶向为100,电阻率为0.002~0.0033Ω·cm重掺产品。一种测量二氧化硅薄膜致密性的方法,测量方法科学合理,进一步提升后期产品品质。
Description
技术领域
本发明涉及一种测量方法,尤其涉及一种测量二氧化硅薄膜致密性的方法。
背景技术
8英寸(200mm)硅片背面处理使用CVD原理(Chemical Vapor Deposition,化学气相沉积),是硅片生产过程中的必要制程之一。在硅片制程中通过化学气相沉积的方法,在硅片表面先沉积一层多晶硅起到吸杂的作用,降低硅片内部的杂质和金属含量。然后在多晶硅表面沉积一层二氧化硅薄膜用于背封,其作用是防止掺杂剂外扩,降低后续外延工艺中的自掺杂效应。因此,监测硅片背面二氧化硅薄膜致密性的必要性不言而喻。
发明内容
本发明主要是解决现有技术中存在的不足,提供一种有利于长期高频率监控并且危险性较低的一种测量二氧化硅薄膜致密性的方法。
本发明的上述技术问题主要是通过下述技术方案得以解决的:
一种测量二氧化硅薄膜致密性的方法,按以下步骤进行:
第一步:准备好经过清洗后的单晶硅晶圆作为原料,单晶硅晶圆的规格:8英寸,即直径为200mm,厚度为735μm,掺杂剂为B,晶向为100,电阻率为0.002~0.0033Ω·cm重掺产品;
第二步:利用AMAYA-800V型常压CVD机台在单晶硅原料背面进行二氧化硅薄膜生长,成膜条件为:硅烷和氧气流量分别为51sccm和612sccm,硅烷和氮气载气流量分别为18slm和12slm;成膜时硅烷和氧气在作业开始时通过氮气被运送至反应腔内硅片表面参与反应;承载硅片表面托盘温度为430±5℃;
第四步,将SCCH-1329清洗机4#清洗槽排空,清洗槽指氢氟酸槽,依次注入0.6L的氢氟酸和59.4L的纯水,这样可保证该槽中的氢氟酸是浓度为1%新液;
第五步,将硅片放在SCCH-1329清洗机上料台上,设置清洗程序,让有薄膜的硅片分别进行如下步骤:①4#清洗槽浸泡300s,清洗槽指1%浓度氢氟酸新液槽;②在纯水溢流槽槽浸泡300s并上下摆动已去除氢氟酸药液;③甩干机甩干300s,干燥硅片表面残留水分;
第六步,利用二氧化硅溶于氢氟酸的原理,经过上述氢氟酸腐蚀后的单晶硅上的二氧化硅薄膜会变薄,且变薄程度与生长的二氧化硅薄膜致密性成反比,即二氧化硅薄膜越致密,相同时间内经氢氟酸槽被腐蚀量就越少;
效果:1、利用上述方案测量二氧化硅薄膜致密性,操作方法及原理方法简单可行,利于长期高频率监控。
2、利用现有二氧化硅薄膜制备设备以及清洗装置即可完成,节省成本和资源。
3、去除过程中的HF酸和二氧化硅反应无毒无害,危险性较低。
因此,本发明的一种测量二氧化硅薄膜致密性的方法,测量方法科学合理,进一步提升后期产品品质。
具体实施方式
下面通过实施例,对本发明的技术方案作进一步具体的说明。
实施例1:一种测量二氧化硅薄膜致密性的方法,按以下步骤进行:
第一步:准备好经过清洗后的单晶硅晶圆作为原料,单晶硅晶圆的规格:8英寸,即直径为200mm,厚度为735μm,掺杂剂为B,晶向为100,电阻率为0.002~0.0033Ω·cm重掺产品;
第二步:利用AMAYA-800V型常压CVD机台在单晶硅原料背面进行二氧化硅薄膜生长,成膜条件为:硅烷和氧气流量分别为51sccm和612sccm,硅烷和氮气载气流量分别为18slm和12slm;成膜时硅烷和氧气在作业开始时通过氮气被运送至反应腔内硅片表面参与反应;承载硅片表面托盘温度为430±5℃;
第四步,将SCCH-1329清洗机4#清洗槽排空,清洗槽指氢氟酸槽,依次注入0.6L的氢氟酸和59.4L的纯水,这样可保证该槽中的氢氟酸是浓度为1%新液;
第五步,将硅片放在SCCH-1329清洗机上料台上,设置清洗程序,让有薄膜的硅片分别进行如下步骤:①4#清洗槽浸泡300s,清洗槽指1%浓度氢氟酸新液槽;②在纯水溢流槽槽浸泡300s并上下摆动已去除氢氟酸药液;③甩干机甩干300s,干燥硅片表面残留水分;
第六步,利用二氧化硅溶于氢氟酸的原理,经过上述氢氟酸腐蚀后的单晶硅上的二氧化硅薄膜会变薄,且变薄程度与生长的二氧化硅薄膜致密性成反比,即二氧化硅薄膜越致密,相同时间内经氢氟酸槽被腐蚀量就越少;
Claims (1)
1.一种测量二氧化硅薄膜致密性的方法,其特征在于按以下步骤进行:
第一步:准备好经过清洗后的单晶硅晶圆作为原料,单晶硅晶圆的规格:8英寸,即直径为200mm,厚度为735μm,掺杂剂为B,晶向为100,电阻率为0.002~0.0033Ω·cm重掺产品;
第二步:利用AMAYA-800V型常压CVD机台在单晶硅原料背面进行二氧化硅薄膜生长,成膜条件为:硅烷和氧气流量分别为51sccm和612sccm,硅烷和氮气载气流量分别为18slm和12slm;成膜时硅烷和氧气在作业开始时通过氮气被运送至反应腔内硅片表面参与反应;承载硅片表面托盘温度为430±5℃;
第四步,将SCCH-1329清洗机4#清洗槽排空,清洗槽指氢氟酸槽,依次注入0.6L的氢氟酸和59.4L的纯水,保证该槽中的氢氟酸是浓度为1%的新液;
第五步,将硅片放在SCCH-1329清洗机上料台上,设置清洗程序,让有薄膜的硅片分别进行如下步骤:①4#清洗槽浸泡300s,清洗槽指1%浓度氢氟酸新液槽;②在纯水溢流槽浸泡300s并上下摆动以去除氢氟酸药液;③甩干机甩干300s,干燥硅片表面残留水分;
第六步,利用二氧化硅溶于氢氟酸的原理,经过上述氢氟酸腐蚀后的单晶硅上的二氧化硅薄膜会变薄,且变薄程度与生长的二氧化硅薄膜致密性成反比,即二氧化硅薄膜越致密,相同时间内经氢氟酸槽被腐蚀量就越少;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911408772.8A CN111128784B (zh) | 2019-12-31 | 2019-12-31 | 一种测量二氧化硅薄膜致密性的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911408772.8A CN111128784B (zh) | 2019-12-31 | 2019-12-31 | 一种测量二氧化硅薄膜致密性的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111128784A CN111128784A (zh) | 2020-05-08 |
CN111128784B true CN111128784B (zh) | 2022-06-24 |
Family
ID=70506199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911408772.8A Active CN111128784B (zh) | 2019-12-31 | 2019-12-31 | 一种测量二氧化硅薄膜致密性的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111128784B (zh) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008109125A (ja) * | 2006-09-29 | 2008-05-08 | Sumco Techxiv株式会社 | シリコン単結晶基板及びその製造方法 |
CN101740525A (zh) * | 2008-11-24 | 2010-06-16 | 合晶科技股份有限公司 | 晶背的封装结构 |
CN102044459A (zh) * | 2009-10-15 | 2011-05-04 | 中芯国际集成电路制造(上海)有限公司 | 检测掺氮氧化硅薄膜含氮量的方法 |
CN102969229A (zh) * | 2012-12-12 | 2013-03-13 | 天津中环领先材料技术有限公司 | 一种重掺磷单晶硅晶圆片高致密性二氧化硅背封工艺 |
CN103000544A (zh) * | 2011-09-13 | 2013-03-27 | 康可电子(无锡)有限公司 | 一种磷硼预扩散工艺用测试片的循环利用方法 |
CN103904001A (zh) * | 2014-03-20 | 2014-07-02 | 上海华力微电子有限公司 | 一种用于氮掺杂碳化硅薄膜的离线监控方法 |
CA2856917A1 (en) * | 2013-07-19 | 2015-01-19 | University Of Windsor | Ultrasonic sensor microarray and method of manufacturing same |
CN106158768A (zh) * | 2015-04-17 | 2016-11-23 | 上海申和热磁电子有限公司 | 用于硅片的有去边复合背封层结构及其制造方法 |
CN106653677A (zh) * | 2016-09-22 | 2017-05-10 | 东莞市联洲知识产权运营管理有限公司 | 一种soi片的制备方法 |
CN109166787A (zh) * | 2018-08-26 | 2019-01-08 | 合肥安德科铭半导体科技有限公司 | 一种氧化硅薄膜的可流动化学气相沉积方法 |
CN109904070A (zh) * | 2017-12-11 | 2019-06-18 | 有研半导体材料有限公司 | 一种大直径晶圆的衬底边缘处理方法 |
-
2019
- 2019-12-31 CN CN201911408772.8A patent/CN111128784B/zh active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008109125A (ja) * | 2006-09-29 | 2008-05-08 | Sumco Techxiv株式会社 | シリコン単結晶基板及びその製造方法 |
CN101740525A (zh) * | 2008-11-24 | 2010-06-16 | 合晶科技股份有限公司 | 晶背的封装结构 |
CN102044459A (zh) * | 2009-10-15 | 2011-05-04 | 中芯国际集成电路制造(上海)有限公司 | 检测掺氮氧化硅薄膜含氮量的方法 |
CN103000544A (zh) * | 2011-09-13 | 2013-03-27 | 康可电子(无锡)有限公司 | 一种磷硼预扩散工艺用测试片的循环利用方法 |
CN102969229A (zh) * | 2012-12-12 | 2013-03-13 | 天津中环领先材料技术有限公司 | 一种重掺磷单晶硅晶圆片高致密性二氧化硅背封工艺 |
CA2856917A1 (en) * | 2013-07-19 | 2015-01-19 | University Of Windsor | Ultrasonic sensor microarray and method of manufacturing same |
CN103904001A (zh) * | 2014-03-20 | 2014-07-02 | 上海华力微电子有限公司 | 一种用于氮掺杂碳化硅薄膜的离线监控方法 |
CN106158768A (zh) * | 2015-04-17 | 2016-11-23 | 上海申和热磁电子有限公司 | 用于硅片的有去边复合背封层结构及其制造方法 |
CN106653677A (zh) * | 2016-09-22 | 2017-05-10 | 东莞市联洲知识产权运营管理有限公司 | 一种soi片的制备方法 |
CN109904070A (zh) * | 2017-12-11 | 2019-06-18 | 有研半导体材料有限公司 | 一种大直径晶圆的衬底边缘处理方法 |
CN109166787A (zh) * | 2018-08-26 | 2019-01-08 | 合肥安德科铭半导体科技有限公司 | 一种氧化硅薄膜的可流动化学气相沉积方法 |
Non-Patent Citations (1)
Title |
---|
APCVD制备二氧化硅薄膜工艺研究;高丹等;《电子工艺技术》;20191131;全文 * |
Also Published As
Publication number | Publication date |
---|---|
CN111128784A (zh) | 2020-05-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1253263A (en) | Back sealing of silicon wafers | |
JP2017523950A5 (zh) | ||
JP2013197307A (ja) | 半導体装置の製造方法及び基板処理装置 | |
EP1684335A1 (en) | Process for producing silicon epitaxial wafer | |
CN102969229A (zh) | 一种重掺磷单晶硅晶圆片高致密性二氧化硅背封工艺 | |
US7939441B2 (en) | P-type silicon wafer and method for heat-treating the same | |
CN111128784B (zh) | 一种测量二氧化硅薄膜致密性的方法 | |
CN111681945A (zh) | 一种多晶背封改善大直径半导体硅片几何参数的工艺 | |
KR101810644B1 (ko) | 에피텍셜웨이퍼 제조 방법 | |
CN111463117B (zh) | 一种高频器件用硅外延片的制备方法 | |
CN110629289B (zh) | 一种低亮暗点的4和6英寸半绝缘砷化镓抛光片制备方法 | |
JP3298467B2 (ja) | エピタキシャルウェーハの製造方法 | |
JP6078604B2 (ja) | 半導体装置の製造方法、基板処理方法、基板処理装置およびガス供給系 | |
JPH05259091A (ja) | 半導体装置の製造方法 | |
KR20010068377A (ko) | 에피택셜 실리콘 웨이퍼 제조 방법 | |
CN103396170A (zh) | 多晶硅铸锭用坩埚涂层的制备方法以及坩埚 | |
US20140291680A1 (en) | Silicon member and method of producing the same | |
TWI814488B (zh) | 高電阻矽晶圓的厚度測量方法以及平坦度測量方法 | |
CN111834207B (zh) | 一种沉积多晶硅薄膜的方法 | |
KR101856776B1 (ko) | 에피 웨이퍼 제조방법 | |
US20240222116A1 (en) | Method, system and apparatus for forming epitaxial template layer | |
KR102521336B1 (ko) | 에피택셜 웨이퍼의 제조 방법 | |
KR101063908B1 (ko) | 에피택셜 웨이퍼의 제조장치 및 방법 | |
CN117845335A (zh) | 改善退火炉体铁和颗粒的方法 | |
CN116798853A (zh) | 一种硅外延片的生长方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |