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. 20, 1983
Filed:
Feb. 26, 1981
Applicant:
Inventors:
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
29841 ; 29589 ; 29832 ; 29827 ;
Abstract
A process of construction of a device for hermetic sealing in a case comprising a sealed ceramic crossover formed by a metal conductor, without having recourse to the technology of cast alumina, which is delicate and costly, and without using sealing glass which is undesirable for very high frequencies. The process comprises the manufacture of molded parts by pressing green alumina to which binders have been added, so as to obtain a case bottom and a frame, which is metalized only after previous firing at 1000.degree. C., using the molybdenum-manganese deposit by silk-screen printing, then which is sintered at the normal temperature of alumina at 1500.degree. C.