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:
Nov. 01, 1983
Filed:
Feb. 01, 1982
Applicant:
Inventors:
William R McKee, Plano, TX (US);
Russell H Murdock, Richardson, TX (US);
Eric F Schulte, Richardson, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ; B23K / ;
U.S. Cl.
CPC ...
427 531 ; 2191 / ; 2191 / ; 427 99 ; 427345 ;
Abstract
Laser patterning of metallization is done by transmitting laser energy through a liquid film directly in contact with the metallization to be patterned. When the metal is evaporated by the laser energy, the vapor is condensed immediately by the liquid film. This prevents redeposition of metal on the patterned surface and suspends the removed metal in the liquid so that it may be reclaimed by filtration.