DE19833448C2 - Verfahren zur Reinigung von CVD-Anlagen - Google Patents
Verfahren zur Reinigung von CVD-AnlagenInfo
- Publication number
- DE19833448C2 DE19833448C2 DE19833448A DE19833448A DE19833448C2 DE 19833448 C2 DE19833448 C2 DE 19833448C2 DE 19833448 A DE19833448 A DE 19833448A DE 19833448 A DE19833448 A DE 19833448A DE 19833448 C2 DE19833448 C2 DE 19833448C2
- Authority
- DE
- Germany
- Prior art keywords
- diketones
- cleaning
- etching medium
- elevated temperature
- alkaline earth
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 42
- 238000004140 cleaning Methods 0.000 title claims description 39
- 230000008569 process Effects 0.000 title claims description 18
- 239000002184 metal Substances 0.000 claims description 41
- 229910052751 metal Inorganic materials 0.000 claims description 39
- 125000005594 diketone group Chemical group 0.000 claims description 34
- 238000005530 etching Methods 0.000 claims description 29
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 23
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 23
- 239000010909 process residue Substances 0.000 claims description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- 230000008021 deposition Effects 0.000 claims description 10
- 239000011224 oxide ceramic Substances 0.000 claims description 10
- 229910052574 oxide ceramic Inorganic materials 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- 238000006384 oligomerization reaction Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 claims description 7
- IGRLELOKIQLMHM-UHFFFAOYSA-N 2,2,5-trimethyloctane-3,4-dione Chemical compound CCCC(C)C(=O)C(=O)C(C)(C)C IGRLELOKIQLMHM-UHFFFAOYSA-N 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- QAMFBRUWYYMMGJ-UHFFFAOYSA-N hexafluoroacetylacetone Chemical compound FC(F)(F)C(=O)CC(=O)C(F)(F)F QAMFBRUWYYMMGJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920000768 polyamine Polymers 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims 1
- 238000000151 deposition Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002243 precursor Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 229910052788 barium Inorganic materials 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 3
- 150000004679 hydroxides Chemical class 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 229910052712 strontium Inorganic materials 0.000 description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 3
- IATRAKWUXMZMIY-UHFFFAOYSA-N strontium oxide Chemical compound [O-2].[Sr+2] IATRAKWUXMZMIY-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 230000009918 complex formation Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052845 zircon Inorganic materials 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical group [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 230000003606 oligomerizing effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000003438 strontium compounds Chemical class 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4405—Cleaning of reactor or parts inside the reactor by using reactive gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/905—Cleaning of reaction chamber
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Drying Of Semiconductors (AREA)
Description
- - zur Reinigung ein freie Diketone enthaltendes Ätzmedium verwendet wird, das mit den Prozeßrückständen in Kontakt tritt,
- - die Diketone mit den Prozeßrückständen unter Bildung von Erdalkalimetall- und/oder Metallkomplexen reagieren, und
- - das Ätzmedium zur Verhinderung einer Oligomerisation der Erdalkalimetall- und/oder Metallkomplexe wenigstens eine Verbindung aus der Gruppe umfassend Ammoniak, Amine, Polyether-Zusätze, Polyamin-Zusätze und Tetraglyme enthält.
- - das Ätzmedium bei einem ersten Druck und einer ersten Tem peratur mit den Prozeßrückständen in Kontakt tritt;
- - das Ätzmedium nachfolgend eine vorgegebene Zeit auf die Prozeßrückstände einwirkt und dabei die freien Diketone mit den Prozeßrückständen die Erdalkalimetall- bzw. Metallkom plexe bilden, wobei diese bei der ersten Temperatur und dem ersten Druck im wesentlichen noch auf der Oberfläche ver bleiben; und
- - anschließend die Erdalkalimetall- bzw. Metallkomplexe bei gegenüber Standardnormalbedingungen erhöhter Temperatur und stark vermindertem Druck von den Oberflächen entfernt wer den.
Claims (16)
zur Reinigung ein freie Diketone enthaltendes Ätzmedium verwendet wird, das mit den Prozessrückständen in Kon takt tritt,
die Diketone mit den Prozessrückständen unter Bildung von Erdalkalimetall- und/oder Metallkomplexen reagieren, und
das Ätzmedium zur Verhinderung einer Oligomerisation der Erdalkalimetall- und/oder Metallkomplexe wenigstens eine Verbindung aus der Gruppe umfassend Ammoniak, Amine, Po lyether-Zusätze, Polyamin-Zusätze und Tetraglyme ent hält.
mindestens ein Reinigungszyklus vorgesehen ist, bei dem
das Ätzmedium bei einem ersten Druck und einer ersten Temperatur mit den Prozessrückständen in Kontakt tritt;
das Ätzmedium nachfolgend eine vorgegebene Zeit auf die Prozessrückstände einwirkt und dabei die freien Diketone mit den Prozessrückständen die Erdalkalimetall- und/oder Metallkomplexe bilden, wobei diese bei der ersten Tempe ratur und dem ersten Druck im wesentlichen noch auf der Oberfläche verbleiben; und
anschliessend die Erdalkalimetall- und/oder Metallkom plexe bei gegenüber Standardnormalbedingungen erhöhter Temperatur und stark vermindertem Druck von den Oberflä chen entfernt werden.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833448A DE19833448C2 (de) | 1998-07-24 | 1998-07-24 | Verfahren zur Reinigung von CVD-Anlagen |
| JP11206557A JP2000096241A (ja) | 1998-07-24 | 1999-07-21 | Cvd装置の洗浄方法 |
| US09/360,944 US6656376B1 (en) | 1998-07-24 | 1999-07-26 | Process for cleaning CVD units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833448A DE19833448C2 (de) | 1998-07-24 | 1998-07-24 | Verfahren zur Reinigung von CVD-Anlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19833448A1 DE19833448A1 (de) | 2000-02-03 |
| DE19833448C2 true DE19833448C2 (de) | 2003-07-17 |
Family
ID=7875251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19833448A Expired - Fee Related DE19833448C2 (de) | 1998-07-24 | 1998-07-24 | Verfahren zur Reinigung von CVD-Anlagen |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6656376B1 (de) |
| JP (1) | JP2000096241A (de) |
| DE (1) | DE19833448C2 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7097715B1 (en) * | 2000-10-11 | 2006-08-29 | R. R. Street Co. Inc. | Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent |
| JP4663059B2 (ja) * | 2000-03-10 | 2011-03-30 | 東京エレクトロン株式会社 | 処理装置のクリーニング方法 |
| JP2002129334A (ja) * | 2000-10-26 | 2002-05-09 | Applied Materials Inc | 気相堆積装置のクリーニング方法及び気相堆積装置 |
| JP4754080B2 (ja) | 2001-03-14 | 2011-08-24 | 東京エレクトロン株式会社 | 基板処理装置のクリーニング方法及び基板処理装置 |
| JP3527231B2 (ja) * | 2002-07-05 | 2004-05-17 | 東京エレクトロン株式会社 | 基板処理装置のクリーニング方法 |
| US8034183B2 (en) | 2005-02-02 | 2011-10-11 | Tokyo Electron Limited | Cleaning method and plasma processing method |
| US8128755B2 (en) | 2010-03-03 | 2012-03-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cleaning solvent and cleaning method for metallic compound |
| JP5707144B2 (ja) * | 2011-01-18 | 2015-04-22 | 東京エレクトロン株式会社 | 基板処理装置のドライクリーニング方法及び金属膜の除去方法 |
| JP6980406B2 (ja) * | 2017-04-25 | 2021-12-15 | 株式会社日立ハイテク | 半導体製造装置及び半導体装置の製造方法 |
| JP6936700B2 (ja) * | 2017-10-31 | 2021-09-22 | 株式会社日立ハイテク | 半導体製造装置及び半導体装置の製造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701274A1 (de) * | 1994-08-11 | 1996-03-13 | Nippon Sanso Corporation | Trockenreinigungsverfahren für Halbleitersubstrate |
| US5782986A (en) * | 1996-01-11 | 1998-07-21 | Fsi International | Process for metals removal using beta-diketone or beta-ketoimine ligand forming compounds |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094701A (en) * | 1990-03-30 | 1992-03-10 | Air Products And Chemicals, Inc. | Cleaning agents comprising beta-diketone and beta-ketoimine ligands and a process for using the same |
| US5453494A (en) * | 1990-07-06 | 1995-09-26 | Advanced Technology Materials, Inc. | Metal complex source reagents for MOCVD |
| US5362328A (en) * | 1990-07-06 | 1994-11-08 | Advanced Technology Materials, Inc. | Apparatus and method for delivering reagents in vapor form to a CVD reactor, incorporating a cleaning subsystem |
| US5431774A (en) * | 1993-11-30 | 1995-07-11 | Texas Instruments Incorporated | Copper etching |
| US5685918A (en) * | 1994-07-29 | 1997-11-11 | Ambar, Inc. | Composition for removing scale |
| US5705443A (en) * | 1995-05-30 | 1998-01-06 | Advanced Technology Materials, Inc. | Etching method for refractory materials |
| US5993679A (en) * | 1997-11-06 | 1999-11-30 | Anelva Corporation | Method of cleaning metallic films built up within thin film deposition apparatus |
| US6143191A (en) * | 1997-11-10 | 2000-11-07 | Advanced Technology Materials, Inc. | Method for etch fabrication of iridium-based electrode structures |
-
1998
- 1998-07-24 DE DE19833448A patent/DE19833448C2/de not_active Expired - Fee Related
-
1999
- 1999-07-21 JP JP11206557A patent/JP2000096241A/ja not_active Withdrawn
- 1999-07-26 US US09/360,944 patent/US6656376B1/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701274A1 (de) * | 1994-08-11 | 1996-03-13 | Nippon Sanso Corporation | Trockenreinigungsverfahren für Halbleitersubstrate |
| US5782986A (en) * | 1996-01-11 | 1998-07-21 | Fsi International | Process for metals removal using beta-diketone or beta-ketoimine ligand forming compounds |
Non-Patent Citations (2)
| Title |
|---|
| CA Abstr. Nr.124-103092 (Thin Solid Films (1995), Vol.269 (1-2), S.51-56) * |
| CA Abstr. Nr.129-283980 (Proc.-Inst. Environ Sci. Technol. (1998), 44th (Contamination Control) S.80-86) * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000096241A (ja) | 2000-04-04 |
| DE19833448A1 (de) | 2000-02-03 |
| US6656376B1 (en) | 2003-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69424099T2 (de) | Niedertemperaturreinigung von Kaltwand-CVD-Einrichtungen | |
| DE4229568C2 (de) | Verfahren zum Niederschlagen dünner Titannitridschichten mit niedrigem und stabilem spezifischen Volumenwiderstand | |
| DE69308822T2 (de) | Verfahren zum Ätzen von Aluminium und dessen Legierungen unter Verwendung eines HC1, C1 und N2 enthaltenden Ätzmittels | |
| DE3709066C2 (de) | ||
| DE19833448C2 (de) | Verfahren zur Reinigung von CVD-Anlagen | |
| DE69903531T2 (de) | Verfahren zur passivierung einer cvd-kammer | |
| DE69206944T2 (de) | Verfahren zur Reinigung integrierter Schaltkreise während die Herstellung | |
| DE10132882B4 (de) | Verfahren zum Ausbilden einer Dünnschicht unter Verwendung einer Atomschichtabscheidung | |
| DE3916622C2 (de) | ||
| DE69634194T2 (de) | Verfahren zur bearbeitung einer oberfläche | |
| DE69028180T2 (de) | Verfahren und Vorrichtung zum kontinuierlichen Ätzen | |
| DE19982566B4 (de) | Einrichtung und Verfahren zum Bearbeiten eines Substrats | |
| DE69830776T2 (de) | Gas zum Wegnehmen von Ablagerungen und ihre Verwendung | |
| WO2000039847A1 (de) | Verfahren zum strukturieren eines substrats sowie vorrichtung zur durchführung eines derartigen verfahrens | |
| DE69219547T2 (de) | Verfahren zur Verwendung von Halogenkarbonsäuren als Reinigungsmittel bei der Herstellung integrierter Schaltkreise | |
| DE2822901A1 (de) | Reinigungsverfahren fuer halbleiter- bauelemente | |
| DE112007000933T5 (de) | Katalytische, chemische Gasphasenabscheidungsvorrichtung | |
| DE19851824C2 (de) | CVD-Reaktor | |
| EP0344764B1 (de) | Verfahren zur nasschemischen Oberflächenbehandlung von Halbleiterscheiben | |
| DE19751784A1 (de) | Verfahren zum Herstellen einer Barriereschicht | |
| DE19706763B4 (de) | Verfahren zum Ätzen einer Metallschicht | |
| EP0889506A2 (de) | Strukturierungsverfahren | |
| DE69013589T2 (de) | Verfahren zur Abscheidung von Zinksulfidfilmen. | |
| DE19840236A1 (de) | Verfahren zum Bilden eines Wolframsilizidfilmes, Verfahren des Herstellens einer Halbleitervorrichtung und dadurch hergestellte Halbleitereinrichtung | |
| DE3625597A1 (de) | Aetzmittel zum entfernen abgeschiedener materialien von geraeten und zubehoer zur chemischen dampfabscheidung und reinigungsverfahren fuer diese gegenstaende |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: INFINEON TECHNOLOGIES AG, 81669 MUENCHEN, DE |
|
| 8304 | Grant after examination procedure | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: QIMONDA AG, 81739 MUENCHEN, DE |
|
| R081 | Change of applicant/patentee |
Owner name: INFINEON TECHNOLOGIES AG, DE Free format text: FORMER OWNER: QIMONDA AG, 81739 MUENCHEN, DE Owner name: POLARIS INNOVATIONS LTD., IE Free format text: FORMER OWNER: QIMONDA AG, 81739 MUENCHEN, DE |
|
| R081 | Change of applicant/patentee |
Owner name: POLARIS INNOVATIONS LTD., IE Free format text: FORMER OWNER: INFINEON TECHNOLOGIES AG, 85579 NEUBIBERG, DE |
|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |