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Extract from the Register of European Patents

EP About this file: EP0071205

EP0071205 - Method for forming high density dielectric isolation [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.08.1990
Database last updated on 14.09.2024
Most recent event   Tooltip09.08.1990No opposition filed within time limitpublished on 26.09.1990 [1990/39]
Applicant(s)For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
[N/P]
Former [1983/06]For all designated states
International Business Machines Corporation
Old Orchard Road
Armonk, N.Y. 10504 / US
Inventor(s)01 / Chu, Wei-Kan
Wayne Drive
Poughkeepsie New York 12601 / US
02 / Pliskin, William Aaron
Greenvale Farms Road
Poughkeepsie New York 12603 / US
03 / Riseman, Jacob
Barnard Avenue
Poughkeepsie New York 12601 / US
[1983/06]
Representative(s)Kreidler, Eva-Maria, et al
Schönaicher Strasse 220
D-7030 Böblingen / DE
[N/P]
Former [1989/16]Kreidler, Eva-Maria, Dr. rer. nat., et al
Schönaicher Strasse 220
D-7030 Böblingen / DE
Former [1989/11]Mönig, Anton, Dipl.-Ing.
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart / DE
Former [1983/06]Kreidler, Eva-Maria, Dr. rer. nat.
Schönaicher Strasse 220
D-7030 Böblingen / DE
Application number, filing date82106656.023.07.1982
[1983/06]
Priority number, dateUS1981028746627.07.1981         Original published format: US 287466
[1983/06]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0071205
Date:09.02.1983
Language:EN
[1983/06]
Type: A3 Search report 
No.:EP0071205
Date:20.08.1986
Language:EN
[1986/34]
Type: B1 Patent specification 
No.:EP0071205
Date:18.10.1989
Language:EN
[1989/42]
Search report(s)(Supplementary) European search report - dispatched on:EP02.07.1986
ClassificationIPC:H01L21/76, H01L21/316
[1983/06]
CPC:
H01L21/02126 (EP,US); H01L21/02282 (EP,US); H01L21/02304 (EP,US);
H01L21/31051 (EP,US); H01L21/31604 (US); H01L21/31608 (US);
H01L21/76224 (EP,US); Y10S438/951 (EP,US) (-)
Designated contracting statesDE,   FR,   GB [1983/06]
TitleGerman:Verfahren zur Herstellung einer dielektrischen Isolation hoher Dichtheit[1983/06]
English:Method for forming high density dielectric isolation[1983/06]
French:Procédé pour la formation d'une isolation diélectrique à haute densité[1983/06]
Examination procedure19.05.1983Examination requested  [1983/31]
15.02.1988Despatch of a communication from the examining division (Time limit: M06)
18.07.1988Reply to a communication from the examining division
02.11.1988Despatch of communication of intention to grant (Approval: Yes)
10.02.1989Communication of intention to grant the patent
22.02.1989Fee for grant paid
22.02.1989Fee for publishing/printing paid
Opposition(s)19.07.1990No opposition filed within time limit [1990/39]
Fees paidRenewal fee
24.07.1984Renewal fee patent year 03
12.07.1985Renewal fee patent year 04
04.07.1986Renewal fee patent year 05
28.07.1987Renewal fee patent year 06
29.07.1988Renewal fee patent year 07
25.07.1989Renewal fee patent year 08
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Documents cited:Search[XP]JP57012533  ;
 [X]EP0011418  (GEN ELECTRIC CO LTD [GB]);
 [YD]US3212929  (PLISKIN WILLIAM A, et al);
 [XP]EP0041776  (FUJITSU LTD [JP]);
 [E]EP0060205  (FAIRCHILD CAMERA INSTR CO [US])
 [X]  - IBM TECHNICAL DISCLOSURE BULLETIN, vol. 8, no. 4, September 1965, pages 670-671, New York, US; W.A. PIECZONKA et al.: "Isolation method and structure for integrated devices"
 [AD]  - ELECTROCHEMICAL TECHNOLOGY, vol. 2, no. 7-8, July-August 1964, pages 196-200, Princeton, GB; W.A. PLISKIN et al.: "Techniques for obtaining uniform thin glass films on substrates"
 [AD]  - IBM TECHNICAL DISCLOSURE BULLETIN, vol. 20, no. 1, June 1977, New York, US; S.A. ABBAS: "Recessed oxide isolation process"
 [A]  - IBM TECHNICAL DISCLOSURE BULLETIN, vol. 23, no. 10, March 1981, New York, US; R.F. LEVER et al.: "Trench refill with chemical vapor deposition mixed glasses"
 [XP]  - PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 72 (E-105) [950], 7th May 1982; & JP-A-57 012 533 (FUJITSU K.K.) 22-01-1982, & JP57012533 A 00000000
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.