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:
Dec. 26, 1989
Filed:
Feb. 28, 1987
Applicant:
Inventors:
Lesli A Derryberry, Dallas, TX (US);
Charles E Williams, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; H05K / ;
U.S. Cl.
CPC ...
361386 ; 174 163 ; 174 524 ; 165185 ; 357 81 ; 361398 ; 361400 ;
Abstract
A chip carrier including a connecting strip is supported by a thermally conductive spacer block under its center, which provides a mechanical connection to a circuit board. The external contact pads on the underside of the chip carrier are not bonded directly to traces on the board, but instead are bonded to the connecting strip which is formed from a polymer layer having conductive traces thereon. The conductive traces may be bonded to traces on the circuit board.