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:
Jul. 25, 1978
Filed:
Dec. 17, 1976
Willi Gansert, Kornwestheim, DE;
Martin Zipperer, Hildesheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
To prevent failure of solder connections between projecting pins from discrete electrical components, such as power transistors, and printed circuit paths formed on an insulated substrate, the space between the semiconductor and an attached cooling plate in the region of the pin is increased to permit lateral excursion of the pin, without electrical contact with the cooling plate, and thus prevent failure of the solder connection. The space can be increased by, for example, the relieving the thickness of the cooling plate in the region where the pin passes therethrough, or spacers can be inserted between the cooling plate and the insulating board on which the printed circuit is carried, both solutions providing for some flexibility of the mounting and hence deflection of the connecting pin from the semiconductor to the solder connection.