(19)
(11) EP 0 956 589 A1

(12)

(43) Date of publication:
17.11.1999 Bulletin 1999/46

(21) Application number: 96941385.0

(22) Date of filing: 18.11.1996
(51) International Patent Classification (IPC): 
H01L 23/ 12( . )
H01L 23/ 14( . )
H01L 23/ 498( . )
 H01L 23/ 13( . )
H01L 23/ 31( . )
H01L 23/ 50( . )
(86) International application number:
PCT/US1996/018479
(87) International publication number:
WO 1997/019470 (29.05.1997 Gazette 1997/23)
(84) Designated Contracting States:
DE GB

(30) Priority: 20.11.1995 US 19950007374P
15.11.1996 US 19960749259

(71) Applicant: OLIN CORPORATION
New Haven, CT 06511-1837 (US)

(72) Inventors:
  • HOFFMAN, Paul, R.
    Modesto, CA 95356 (US)
  • LIEBHARD, Markus, K.
    Oakland, CA 94611 (US)

(74) Representative: Klunker . Schmitt-Nilson . Hirsch 
Winzererstrasse 106
80797 München
80797 München (DE)

   


(54) GROUND RING FOR METAL ELECTRONIC PACKAGE