The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2001
Filed:
Mar. 04, 1999
Fujitsu Limited, Kawasaki, JP;
Abstract
According to the present invention, for a multi-layer plastic package having bonding pads at multiple levels, a plurality of electrically independent side wall conductive layers can be provided by forming side wall conductive layer on the side wall of an opening in each insulating layer. In particular, when the insulating layer forms a multi-layer structure, side wall conductive layers are formed on each of the individual side walls of the multi insulating layers, and a pre-impregnated layer is inserted between each two insulation layers, so that a plurality of electrically independent side wall conductive layers can be provided. Even for an insulating layer having a single layer structure, side wall conductive layers are formed so as to be electrically separated from each other, so that a plurality of side wall conductive layers can be provided.