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Extract from the Register of European Patents

EP About this file: EP0435469

EP0435469 - Method for laser link blowing in integrated circuit fabrication [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  31.01.1997
Database last updated on 24.08.2024
Most recent event   Tooltip31.01.1997No opposition filed within time limitpublished on 19.03.1997 [1997/12]
Applicant(s)For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
[1991/27]
Inventor(s)01 / Chlipala, James D.
4754 White Oak Circle
Emmaus, Pennsylvania 18049 / US
[1991/27]
Representative(s)Watts, Christopher Malcolm Kelway, et al
Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green
Essex IG8 OTU / GB
[N/P]
Former [1991/27]Watts, Christopher Malcolm Kelway, Dr., et al
AT&T (UK) LTD. AT&T Intellectual Property Division 5 Mornington Road
Woodford Green Essex IG8 OTU / GB
Application number, filing date90313005.229.11.1990
[1991/27]
Priority number, dateUS1989045916829.12.1989         Original published format: US 459168
[1991/27]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0435469
Date:03.07.1991
Language:EN
[1991/27]
Type: A3 Search report 
No.:EP0435469
Date:01.04.1992
Language:EN
[1992/14]
Type: B1 Patent specification 
No.:EP0435469
Date:27.03.1996
Language:EN
[1996/13]
Search report(s)(Supplementary) European search report - dispatched on:EP12.02.1992
ClassificationIPC:H01L21/768, H01L21/268
[1996/13]
CPC:
H01L23/5258 (EP,US); H01L2924/0002 (EP,US)
C-Set:
H01L2924/0002, H01L2924/00 (EP,US)
Former IPC [1992/14]H01L21/90, H01L21/268
Former IPC [1991/27]H01L21/90, H01L23/525
Designated contracting statesDE,   FR,   GB,   IT [1991/27]
TitleGerman:Verfahren zum Laser-Durchbrennen von Schmelzverbindungen beim Herstellen von integrierten Schaltungen[1991/27]
English:Method for laser link blowing in integrated circuit fabrication[1991/27]
French:Procédé pour faire fondre par laser des fusibles dans la fabrication des circuits intégrés[1991/27]
Examination procedure18.09.1992Examination requested  [1992/47]
20.07.1994Despatch of a communication from the examining division (Time limit: M06)
18.01.1995Reply to a communication from the examining division
19.05.1995Despatch of communication of intention to grant (Approval: Yes)
28.09.1995Communication of intention to grant the patent
29.11.1995Fee for grant paid
29.11.1995Fee for publishing/printing paid
Opposition(s)28.12.1996No opposition filed within time limit [1997/12]
Fees paidRenewal fee
16.11.1992Renewal fee patent year 03
09.11.1993Renewal fee patent year 04
16.11.1994Renewal fee patent year 05
17.11.1995Renewal fee patent year 06
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Documents cited:Search[A]US4155779  (AUSTON DAVID H [US], et al);
 [AD]US4853758  (FISCHER FREDERICK H [US])
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.