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:
Aug. 20, 2002
Filed:
Sep. 29, 2000
Applicant:
Inventors:
Robert B. Welstand, San Diego, CA (US);
Timothy L. Leclair, San Diego, CA (US);
Assignee:
Applied Micro Circuits Corporation, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 3/08 ;
U.S. Cl.
CPC ...
H01P 3/08 ;
Abstract
An interface have been provided to permit the formation of solder connections between substrates suitable for microwave to millimeter wave frequencies. Specifically, signal traces on the substrate are selectively masked to form solder dams. The high temperature, thick-film solder dams define the bonding area and control the flow of solder. Since the solder dam forms a finite-extent structure, the solder mask minimally overlies the signal trace, and signal propagation through the trace is not degraded.