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. 05, 1989
Filed:
Apr. 10, 1987
Applicant:
Inventors:
Marianne Boudot, Paris, FR;
Michel Heitzmann, Paris, FR;
Assignee:
Thomson CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 68 ; 357 51 ; 357 79 ; 357 81 ;
Abstract
The invention provides a process for mounting an ultra-high frequency diode so as to form a pre-matched module. The module of the invention comprises a copper base, a quartz ring and a copper cover: these three parts, coated with gold at least on their facing faces, are assembled together by thermocompression. Inside this case, the diode chip, soldered to the base via a gold heat sink is biased by a false 'beam-lead' connection, a metal star whose arms are curved, which reduces the inductance and capacity of this connection with respect to the base. The false 'beam-lead' is formed by metalizing a mesa obtained on a silicon wafer.