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, 1995
Filed:
Jan. 27, 1993
Alvin M Kong, Los Angeles, CA (US);
James C Lau, Torrance, CA (US);
Steven S Chan, Alhambra, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
The present invention provides a new and effective method for the sealing and electrical testing of electronic devices; and particularly for surface acoustic wave devices. In accordance with the present invention, the cost and size of making hermetically sealed packages for electronic devices and of electrically testing each device is significantly reduced over the prior art by making use of mass simultaneous sealing and electrical connection at the wafer level, and by using substrates with hermetically sealed and electrically conductive via holes. Further, cost reduction is effected by making use of final electrical testing with wafer probe test techniques before dicing.