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Extract from the Register of European Patents

EP About this file: EP0534746

EP0534746 - Method of fabricating a trench structure in a semiconductor substrate [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.11.2001
Database last updated on 19.10.2024
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
MOTOROLA, INC.
1303 East Algonquin Road
Schaumburg, IL 60196 / US
[1993/13]
Inventor(s)01 / Wilson, Syd R.
14215 N 43rd Place
Phoenix, Arizona 85032 / US
02 / See, Yee-Chaung
1674 E. Salt Sage Drive
Phoenix, Arizona 85044 / US
03 / Liang, Han-Bin Kuo
1122 W. Mendoza
Mesa, Arizona 85210 / US
04 / Zirkle, Thomas
2014 E. Manhatton Drive
Tempe, Arizona 85282 / US
[1993/13]
Representative(s)Hudson, Peter David, et al
Motorola
European Intellectual Property
Midpoint
Alencon Link, Basingstoke
Hampshire RG21 7PL / GB
[N/P]
Former [1993/13]Hudson, Peter David, et al
Motorola European Intellectual Property Midpoint Alencon Link
Basingstoke, Hampshire RG21 7PL / GB
Application number, filing date92308687.024.09.1992
[1993/13]
Priority number, dateUS1991076631627.09.1991         Original published format: US 766316
[1993/13]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0534746
Date:31.03.1993
Language:EN
[1993/13]
Type: A3 Search report 
No.:EP0534746
Date:17.08.1994
Language:EN
[1994/33]
Type: B1 Patent specification 
No.:EP0534746
Date:24.01.2001
Language:EN
[2001/04]
Search report(s)(Supplementary) European search report - dispatched on:EP06.07.1994
ClassificationIPC:H01L21/76, H01L21/32
[1994/34]
CPC:
H01L21/32 (EP,US); H01L21/743 (EP,US); H01L21/763 (EP,US)
Former IPC [1993/13]H01L21/76
Designated contracting statesDE,   FR,   GB,   IT [1993/13]
TitleGerman:Verfahren zur Herstellung einer Graberstruktur in einem Halbleitersubstrat[1993/13]
English:Method of fabricating a trench structure in a semiconductor substrate[1993/13]
French:Méthode de fabrication d'une structure de rainure dans un substrat semi-conducteur[1993/13]
Examination procedure17.02.1995Examination requested  [1995/16]
27.03.1995Despatch of a communication from the examining division (Time limit: M04)
15.09.1995Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time
20.11.1995Reply to a communication from the examining division
20.11.1995Request for decision received: division
24.06.1996Result of request for decision (division): Request rejected
03.06.1999Despatch of a communication from the examining division (Time limit: M04)
08.10.1999Reply to a communication from the examining division
15.03.2000Despatch of communication of intention to grant (Approval: Yes)
26.07.2000Communication of intention to grant the patent
06.11.2000Fee for grant paid
06.11.2000Fee for publishing/printing paid
Appeal following examination04.09.1996Appeal received No.  J0030/97
04.09.1996Statement of grounds filed
12.11.1997Interlocutory revision of appeal
12.11.1997Result of appeal procedure: appeal withdrawn
Opposition(s)25.10.2001No opposition filed within time limit [2002/03]
Request for further processing for:04.09.1996Request for further processing filed
04.09.1996Full payment received (date of receipt of payment)
Request granted
11.07.1997Decision despatched
Fees paidRenewal fee
28.07.1994Renewal fee patent year 03
02.10.1995Renewal fee patent year 04
30.09.1996Renewal fee patent year 05
30.09.1997Renewal fee patent year 06
30.09.1998Renewal fee patent year 07
30.09.1999Renewal fee patent year 08
13.09.2000Renewal fee patent year 09
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipGB24.09.2001
[2003/01]
Documents cited:Search[YA]EP0425965  (MOTOROLA INC [US]) [Y] 1,6 * column 4, line 41 - column 5, line 43; figures 1-12; claims 1,10 * [A] 2-5,7
 [Y]  - "FORMATION OF THERMAL ISOLATION CAP OXIDE", IBM TECHNICAL DISCLOSURE BULLETIN., NEW YORK US, (199009), vol. 33, no. 04, pages 463 - 465 [Y] 1,6 * the whole document *
 [A]  - P.H. PAN, "BIRD'S BEAK-FREE SEMI-ROX WITH LARGE RADIUS ON CORNER CURVATURE", IBM TECHNICAL DISCLOSURE BULLETIN., NEW YORK US, (198411), vol. 27, no. 06, pages 3264 - 3265 [A] 6,10 * the whole document *
 [A]  - Y.-C.S. YU ET AL., "PLANARIZED DEEP-TRENCH PROCESS FOR BIPOLAR DEVICE ISOLATION", EXTENDED ABSTRACTS, PRINCETON, NEW JERSEY US, (1988), vol. 88, no. 02, pages 326 - 327 [A] 1 * figures 1A-1B *
 [A]  - B.Y NGUYEN, "FRAMED MASK POLY BUFFERED LOCOS ISOLATION FOR SUBMICRON VLSI TECHNOLOGY", EXTENDED ABSTRACTS, PRINCETON, NEW JERSEY US, (1990), vol. 90, no. 01, pages 614 - 615 [A] 6 * the whole document *
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.