Extract from the Register of European Patents

EP About this file: EP0127281

EP0127281 - An electrode for a semiconductor device [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.05.1988
Database last updated on 11.04.2026
Most recent event   Tooltip05.05.1988No opposition filed within time limitpublished on 22.06.1988 [1988/25]
Applicant(s)For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku Kawasaki-shi
Kanagawa 211 / JP
[N/P]
Former [1984/49]For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku
Kawasaki-shi, Kanagawa 211 / JP
Inventor(s)01 / Watanabe, Kiyoshi
Adachi-so, 1-13-6 Midorigaoka
Meguro-ku Tokyo 152 / JP
02 / Takeuchi, Tohru
G.H 31-203 6205-6, Izumi-cho
Totsuka-ku Yokohama-shi Kanagawa 245 / JP
03 / Ohtake Hideaki
Fujitsu Dai-6 Fujigasha-ryo 17-15 Umegasha
Midori-ku Yokohama-shi Kanagawa 227 / JP
04 / Fujita, Ichiro
5-5-301, Matsugae-cho
Sagamihara-shi Kanagawa 228 / JP
[1984/49]
Representative(s)Fane, Christopher Robin King, et al
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD / GB
[N/P]
Former [1984/49]Fane, Christopher Robin King, et al
HASELTINE LAKE & CO. Hazlitt House 28 Southampton Buildings Chancery Lane
London, WC2A 1AT / GB
Application number, filing date84301991.023.03.1984
[1984/49]
Priority number, dateJP1983004979225.03.1983         Original published format: JP 4979283
[1984/49]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0127281
Date:05.12.1984
Language:EN
[1984/49]
Type: B1 Patent specification 
No.:EP0127281
Date:24.06.1987
Language:EN
[1987/26]
Search report(s)(Supplementary) European search report - dispatched on:EP14.08.1984
ClassificationIPC:H01L21/285, H01L21/60, H01L23/48, H01L29/40
[1984/49]
CPC:
H10W20/038 (EP,US); H10D62/83 (EP,US); H10D64/62 (EP,US);
H10W20/033 (EP,US); H10W20/064 (EP,US); Y10S257/915 (EP,US)
Designated contracting statesDE,   FR,   GB [1984/49]
TitleGerman:Elektrode für Halbleiterbauelement[1984/49]
English:An electrode for a semiconductor device[1984/49]
French:Electrode pour dispositif à semi-conducteur[1984/49]
File destroyed:12.06.1999
Examination procedure14.12.1984Examination requested  [1985/10]
31.07.1986Despatch of communication of intention to grant (Approval: )
10.11.1986Communication of intention to grant the patent
22.12.1986Fee for grant paid
22.12.1986Fee for publishing/printing paid
Opposition(s)25.03.1988No opposition filed within time limit [1988/25]
Fees paidRenewal fee
14.03.1986Renewal fee patent year 03
13.03.1987Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]   Chemical Abstracts vol. 82, no. 10, 10 March Columbus, Ohio, USA; P.S. KISLYI "Effect of chemical and physical factors on sintering of titanium nitride", page 396, column 1, abstract no. 63455r & Teor. Tekhnol. Spekaniya, Dokl., Mezhdunar. Koll [A]
 [AP]   JOURNAL OF THE ELECTROCHEMICAL SOCIETY, vol. 130, no. 5, May 1983, Manchester, USA; I. SUNI et al. "Thermal stability of hafnium and titanium nitride diffusion barriers in multilayer contacts to silicon", pages 1215-1218 [AP]
 [A]   THIN SOLID FILMS, vol. 53, no. 2, 1978, Lausanne, CH; P.B. GHATE et al. "Application of Ti:W barrier metallization for integrated circuits", pages 117-128 [A]
 [A]   APPLIED PHYSICS LETTERS, vol. 36, no. 6, 15 March 1980, New York, USA; M. WITTMER "TiN and TaN as diffusion barriers in metallizations to silicon semiconductor devices", pages 456-458 [A]
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.