DE2305188A1 - Verfahren zur herstellung von polierten halbleiteroberflaechen - Google Patents
Verfahren zur herstellung von polierten halbleiteroberflaechenInfo
- Publication number
- DE2305188A1 DE2305188A1 DE19732305188 DE2305188A DE2305188A1 DE 2305188 A1 DE2305188 A1 DE 2305188A1 DE 19732305188 DE19732305188 DE 19732305188 DE 2305188 A DE2305188 A DE 2305188A DE 2305188 A1 DE2305188 A1 DE 2305188A1
- Authority
- DE
- Germany
- Prior art keywords
- polishing
- suspension
- amines
- production
- polishing agent
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 11
- 239000004065 semiconductor Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000005498 polishing Methods 0.000 claims description 36
- 239000000725 suspension Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 150000001412 amines Chemical class 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 150000004760 silicates Chemical class 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 5
- -1 amine salts Chemical class 0.000 description 7
- 235000012239 silicon dioxide Nutrition 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- KDSNLYIMUZNERS-UHFFFAOYSA-N 2-methylpropanamine Chemical compound CC(C)CN KDSNLYIMUZNERS-UHFFFAOYSA-N 0.000 description 2
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229940083124 ganglion-blocking antiadrenergic secondary and tertiary amines Drugs 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- BMFVGAAISNGQNM-UHFFFAOYSA-N isopentylamine Chemical compound CC(C)CCN BMFVGAAISNGQNM-UHFFFAOYSA-N 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- XFNJVJPLKCPIBV-UHFFFAOYSA-N trimethylenediamine Chemical compound NCCCN XFNJVJPLKCPIBV-UHFFFAOYSA-N 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- GELMWIVBBPAMIO-UHFFFAOYSA-N 2-methylbutan-2-amine Chemical compound CCC(C)(C)N GELMWIVBBPAMIO-UHFFFAOYSA-N 0.000 description 1
- SPVVMXMTSODFPU-UHFFFAOYSA-N 3-methyl-n-(3-methylbutyl)butan-1-amine Chemical compound CC(C)CCNCCC(C)C SPVVMXMTSODFPU-UHFFFAOYSA-N 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- WUGQZFFCHPXWKQ-UHFFFAOYSA-N Propanolamine Chemical compound NCCCO WUGQZFFCHPXWKQ-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 description 1
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- DPBLXKKOBLCELK-UHFFFAOYSA-N pentan-1-amine Chemical compound CCCCCN DPBLXKKOBLCELK-UHFFFAOYSA-N 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- BHRZNVHARXXAHW-UHFFFAOYSA-N sec-butylamine Chemical compound CCC(C)N BHRZNVHARXXAHW-UHFFFAOYSA-N 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 125000005624 silicic acid group Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- ing And Chemical Polishing (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Surface Treatment Of Glass (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732305188 DE2305188A1 (de) | 1973-02-02 | 1973-02-02 | Verfahren zur herstellung von polierten halbleiteroberflaechen |
| JP49013296A JPS49111580A (it) | 1973-02-02 | 1974-01-31 | |
| IT4805674A IT1002811B (it) | 1973-02-02 | 1974-01-31 | Procedimento per produrre superfici polite di semiconduttori |
| FR7403420A FR2216077B1 (it) | 1973-02-02 | 1974-02-01 | |
| NL7401454A NL7401454A (it) | 1973-02-02 | 1974-02-01 | |
| GB512274A GB1449702A (en) | 1973-02-02 | 1974-02-04 | Polishing semi-conductor surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732305188 DE2305188A1 (de) | 1973-02-02 | 1973-02-02 | Verfahren zur herstellung von polierten halbleiteroberflaechen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2305188A1 true DE2305188A1 (de) | 1974-08-08 |
Family
ID=5870787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732305188 Pending DE2305188A1 (de) | 1973-02-02 | 1973-02-02 | Verfahren zur herstellung von polierten halbleiteroberflaechen |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS49111580A (it) |
| DE (1) | DE2305188A1 (it) |
| FR (1) | FR2216077B1 (it) |
| GB (1) | GB1449702A (it) |
| IT (1) | IT1002811B (it) |
| NL (1) | NL7401454A (it) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008360A1 (de) * | 1978-08-15 | 1980-03-05 | International Business Machines Corporation | Vorrichtung zum freien Polieren von Werkstücken und Polierverfahren |
| DE3545383A1 (de) * | 1985-12-20 | 1987-07-02 | Wacker Chemitronic | Verfahren zum eindiffundieren von wasserstoff in halbleiter-, insbesondere siliciumscheiben |
| US5226930A (en) * | 1988-06-03 | 1993-07-13 | Monsanto Japan, Ltd. | Method for preventing agglomeration of colloidal silica and silicon wafer polishing composition using the same |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2538855A1 (de) * | 1975-09-01 | 1977-03-10 | Wacker Chemitronic | Verfahren zur herstellung von schleierfreien halbleiteroberflaechen, insbesondere schleierfreien oberflaechen von (111)-orientiertem galliumarsenid |
| DE3517665A1 (de) * | 1985-05-15 | 1986-11-20 | Wacker-Chemitronic Gesellschaft für Elektronik-Grundstoffe mbH, 8263 Burghausen | Verfahren zum polieren von siliciumscheiben |
| JPS6287242A (ja) * | 1985-05-29 | 1987-04-21 | Nippon Shokubai Kagaku Kogyo Co Ltd | 安定な金属酸化物系ゾル組成物 |
| JPS62162462A (ja) * | 1986-01-10 | 1987-07-18 | Rohm Co Ltd | ウエハ表面仕上方法 |
| JP2651144B2 (ja) * | 1987-01-26 | 1997-09-10 | キヤノン株式会社 | 結晶基材の製造方法 |
| JPH01153262A (ja) * | 1987-12-10 | 1989-06-15 | Mitsubishi Metal Corp | 鏡面研磨方法 |
| JPH0236067A (ja) * | 1988-07-25 | 1990-02-06 | Toshiba Corp | 研磨方法及びその装置 |
| JPH02146732A (ja) * | 1988-07-28 | 1990-06-05 | Fujitsu Ltd | 研摩液及び研摩方法 |
| NL8802028A (nl) * | 1988-08-16 | 1990-03-16 | Philips Nv | Werkwijze voor het vervaardigen van een inrichting. |
| US5084071A (en) * | 1989-03-07 | 1992-01-28 | International Business Machines Corporation | Method of chemical-mechanical polishing an electronic component substrate and polishing slurry therefor |
| US6533832B2 (en) * | 1998-06-26 | 2003-03-18 | Cabot Microelectronics Corporation | Chemical mechanical polishing slurry and method for using same |
| WO2011122415A1 (ja) | 2010-03-29 | 2011-10-06 | 旭硝子株式会社 | 研磨剤、研磨方法および半導体集積回路装置の製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3385682A (en) * | 1965-04-29 | 1968-05-28 | Sprague Electric Co | Method and reagent for surface polishing |
-
1973
- 1973-02-02 DE DE19732305188 patent/DE2305188A1/de active Pending
-
1974
- 1974-01-31 JP JP49013296A patent/JPS49111580A/ja active Pending
- 1974-01-31 IT IT4805674A patent/IT1002811B/it active
- 1974-02-01 FR FR7403420A patent/FR2216077B1/fr not_active Expired
- 1974-02-01 NL NL7401454A patent/NL7401454A/xx not_active Application Discontinuation
- 1974-02-04 GB GB512274A patent/GB1449702A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0008360A1 (de) * | 1978-08-15 | 1980-03-05 | International Business Machines Corporation | Vorrichtung zum freien Polieren von Werkstücken und Polierverfahren |
| DE3545383A1 (de) * | 1985-12-20 | 1987-07-02 | Wacker Chemitronic | Verfahren zum eindiffundieren von wasserstoff in halbleiter-, insbesondere siliciumscheiben |
| US5226930A (en) * | 1988-06-03 | 1993-07-13 | Monsanto Japan, Ltd. | Method for preventing agglomeration of colloidal silica and silicon wafer polishing composition using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2216077A1 (it) | 1974-08-30 |
| FR2216077B1 (it) | 1976-04-30 |
| JPS49111580A (it) | 1974-10-24 |
| GB1449702A (en) | 1976-09-15 |
| NL7401454A (it) | 1974-08-06 |
| IT1002811B (it) | 1976-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHW | Rejection |