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:
Sep. 08, 1998
Filed:
Sep. 13, 1996
Mitsuharu Shimizu, Nagano, JP;
Toshihisa Yoda, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano, JP;
Abstract
A semiconductor package is produced by the following steps. A plurality of circuit boards are prepared, each board having an opening for forming a cavity and a surface providing with a circuit pattern having bonding sections at a peripheral area of the opening. The bonding sections of the respective circuit boards are covered with protective films. A laminated body is formed by laminating the plurality of circuit boards by means of adhesive sheets arranged between the respective circuit boards. Upper and lower substrates are also laminated on upper and lower surfaces of the plurality of circuit boards, respectively, by means of adhesive sheets to close the cavity. The protective films are subsequently removed from the bonding sections of the respective circuit boards of the laminated body.