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:
Mar. 29, 1988
Filed:
Jun. 07, 1985
Winfried Schierz, Heideck, DE;
Semikron Gesellschaft fur Gleichrichterbau, Nuremberg, DE;
Abstract
A semiconductor device element, switchable and stable against alternating loads, is provided as an intermediate product which can be stored, can be applied universally, has a semiconductor wafer disposed between two annular insulating bodies and is stabilized on its surface. The semiconductor wafer is connected on two sides via soldering to a contact piece of molybdenum. The contact pieces are provided on their outer surface in each case with a metallization for providing pressure contacting. The semiconductor wafer is covered with a protecting, that is, passivating and stabilizing, covering in the edge zone up to the jacket face of the contact pieces. The edge zone of the semiconductor is immersed in an additional surface stabilizing material in the edge zone between the insulating bodies. The adhesive properties of the surface stabilizing substance mutually connect the insulating bodies and the semiconductor wafer. The contact pieces and the insulating bodies form a sealed enclosure of the semiconductor wafer, and the control electrode of the semiconductor is pressure contacted by a control current conductor held in one of the insulating bodies, which control electrode is formed as a leaf spring.