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. 13, 1994
Filed:
Mar. 24, 1992
Applicant:
Inventors:
Curtis N Potter, Austin, TX (US);
David A Gibson, Austin, TX (US);
Uttam S Ghoshal, Richmond, CA (US);
Assignee:
Microelectronics and Computer Technology Corporation, Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A05K / ;
U.S. Cl.
CPC ...
174261 ; 174 / ; 174260 ; 2281801 ;
Abstract
A coaxial bump for connecting a die to a substrate includes a center post and a ground ring surrounding and shielding the center post. The center post may be a center conductor line, and the ground ring may be generally torus-shaped, nearly closed or completely closed. The coaxial bump provides very low crosstalk in chip-to-substrate interconnections and provides a constant impedance with negligible inductive discontinuity.