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Extract from the Register of European Patents

EP About this file: EP0155668

EP0155668 - Plasma sculpturing with a non-planar sacrificial layer [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  09.12.1988
Database last updated on 15.06.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
HARRIS CORPORATION
P.O. Box 37
Melbourne, FL 32919 / US
[1985/39]
Inventor(s)01 / Gimpelson, George E.
1080 North Highway A1A Apt. 801
Indialantic Florida 32903 / US
02 / Russo, Cheryl L.
1381 Certosa Avenue
Palm Bay Florida / US
[1985/39]
Representative(s)Wilhelm, Hans-Herbert, et al
Patentanwälte Ruff, Wilhelm, Beier, Dauster & Partner Postfach 10 40 36
70035 Stuttgart / DE
[N/P]
Former [1985/39]Wilhelm, Hans-Herbert, Dr.-Ing., et al
Wilhelm & Dauster Patentanwälte Hospitalstrasse 8
D-70174 Stuttgart / DE
Application number, filing date85103145.019.03.1985
[1985/39]
Priority number, dateUS1984059159720.03.1984         Original published format: US 591597
[1985/39]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0155668
Date:25.09.1985
Language:EN
[1985/39]
Type: A3 Search report 
No.:EP0155668
Date:09.12.1987
Language:EN
[1987/50]
Search report(s)(Supplementary) European search report - dispatched on:EP22.10.1987
ClassificationIPC:H01L21/31
[1985/39]
CPC:
C03C15/00 (EP,US); B23K10/00 (EP,US); B23K28/00 (EP,US);
C03C23/006 (EP,US); H01L21/31055 (EP,US); H01L21/31116 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL [1985/39]
TitleGerman:Plasmaätzverfahren unter Verwendung einer non-planaren Hilfsschicht[1985/39]
English:Plasma sculpturing with a non-planar sacrificial layer[1985/39]
French:Procédé d'attaque par plasma utilisant une couche auxiliaire non-planaire[1985/39]
File destroyed:10.08.1994
Examination procedure09.06.1988Application deemed to be withdrawn, date of legal effect  [1989/04]
05.09.1988Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time  [1989/04]
Fees paidRenewal fee
18.03.1987Renewal fee patent year 03
Penalty fee
Penalty fee Rule 85b EPC 1973
09.06.1988M02   Not yet paid
Additional fee for renewal fee
31.03.198804   M06   Not yet paid
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Documents cited:Search[A]FR2230148  (ITT [US]);
 [A]DE2547792  (HITACHI LTD);
 [A]GB2081159  (PHILIPS NV);
 [Y]EP0049400  (TOKYO SHIBAURA ELECTRIC CO [JP]);
 [E]EP0151948  (IBM [US])
 [X]  - IBM TECHNICAL DISCLOSURE BULLETIN, vol. 25, no. 3B, August 1982, pages 1402-1403, New YorkUS; E. KAMINSKY et al.: "Plasma planarization using differential etch-rate ratio"
 [Y]  - EXTENDED ABSTRACTS- THE ELECTROCHEMICAL SOCIETY, Spring Meeting, Washington, vol. 76-1, 2nd - 7th May 1976pages 119-121; W. KERN: "Chemical etching of dielectrics"
 [X]  - SOLID STATE TECHNOLOGY, vol. 24, no. 4, April 1981, pages 178-181, Port Washington, New YorkUS; A.C. ADAMS: "Plasma planarization"
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.