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. 28, 1999
Filed:
Oct. 07, 1996
Hitoshi Tsuji, Sagamihara, JP;
Koji Nishi, Yokohama, JP;
Abstract
On a surface of an insulating board, a front wiring pattern is formed. On the rear surface of the insulating board, opposing the front wiring pattern, a rear wiring pattern is formed in a shape which is substantially plane-symmetrical to the front wiring pattern. An opening which penetrates the front wiring pattern and the rear wiring pattern is formed. At the inner wall of the opening, an electrically conductive layer is formed. Inside the opening, solder, for example, is placed to form an electrically conductive filling. As a result, the front wiring pattern and the rear wiring pattern are positively connected to each other electrically. Therefore, the current capacity and the heat capacity of the wiring patterns are increased, and the amount of generated heat is reduced.