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Extract from the Register of European Patents

EP About this file: EP0464837

EP0464837 - Method of manufacturing semiconductor substrate using semiconductor integrated circuit having dielectric separation structure [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  10.01.1996
Database last updated on 03.08.2024
Most recent event   Tooltip10.01.1996Application deemed to be withdrawnpublished on 21.02.1996 [1996/08]
Applicant(s)For all designated states
Kabushiki Kaisha Toshiba
72, Horikawa-cho, Saiwai-ku Kawasaki-shi
Kanagawa-ken 210-8572 / JP
[N/P]
Former [1995/01]For all designated states
KABUSHIKI KAISHA TOSHIBA
72, Horikawa-cho, Saiwai-ku
Kawasaki-shi, Kanagawa-ken 210, Tokyo / JP
Former [1992/02]For all designated states
KABUSHIKI KAISHA TOSHIBA
72, Horikawa-cho, Saiwai-ku
Kawasaki-shi, Kanagawa-ken 210 / JP
Inventor(s)01 / Hoshi, Tadahide
6-25-205, Toyooka-Cho, Tsurumi-Ku
Yokohama-Shi, Kanagawa-Ken / JP
[1992/02]
Representative(s)Lehn, Werner, et al
Hoffmann Eitle, Patent- und Rechtsanwälte, Postfach 81 04 20
81904 München / DE
[N/P]
Former [1992/02]Lehn, Werner, Dipl.-Ing., et al
Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20
D-81904 München / DE
Application number, filing date91111196.105.07.1991
[1992/02]
Priority number, dateJP1990017788305.07.1990         Original published format: JP 17788390
[1992/02]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0464837
Date:08.01.1992
Language:EN
[1992/02]
Type: A3 Search report 
No.:EP0464837
Date:27.01.1993
Language:EN
[1993/04]
Search report(s)(Supplementary) European search report - dispatched on:EP09.12.1992
ClassificationIPC:H01L21/76, H01L21/20
[1993/04]
CPC:
H01L21/2007 (EP); H01L21/304 (KR); H01L21/76264 (EP);
H01L21/76275 (EP); H01L21/76286 (EP)
Former IPC [1992/02]H01L21/76
Designated contracting statesDE,   FR,   GB [1992/02]
TitleGerman:Verfahren zur Herstellung eines Halbleitersubstrats unter Verwendung einer halbleiterintegrierten Schaltung mit einer dielektrischen Isolationsstruktur[1992/02]
English:Method of manufacturing semiconductor substrate using semiconductor integrated circuit having dielectric separation structure[1992/02]
French:Procédé pour fabriquer un substrat semi-conducteur utilisant un circuit intégré semi-conducteur comportant une structure de séparation diélectrique[1992/02]
File destroyed:20.04.2002
Examination procedure05.07.1991Examination requested  [1992/02]
05.04.1993Despatch of a communication from the examining division (Time limit: M06)
15.10.1993Reply to a communication from the examining division
14.02.1995Despatch of a communication from the examining division (Time limit: M06)
25.08.1995Application deemed to be withdrawn, date of legal effect  [1996/08]
25.09.1995Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1996/08]
Fees paidRenewal fee
12.07.1993Renewal fee patent year 03
07.07.1994Renewal fee patent year 04
11.07.1995Renewal fee patent year 05
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Documents cited:Search[X]US4851078  (SHORT JOHN P [US], et al);
 [Y]EP0296754  (TOSHIBA KK [JP]);
 [Y]EP0182032  (TOSHIBA KK [JP])
 [X]  - GOTOU H., ET AL., "SOI-DEVICE ON BONDED WAFER.", FUJITSU-SCIENTIFIC AND TECHNICAL JOURNAL., Fujitsu Ltd., JP, JP, (19881221), vol. 24., no. 04 + INDEX., ISSN 0016-2523, pages 408 - 417., XP000112818
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.