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:
Feb. 22, 1977
Filed:
Oct. 22, 1975
Applicant:
Inventors:
Dervin L Flowers, Scottsdale, AZ (US);
Richard L Greeson, Scottsdale, AZ (US);
Assignee:
Motorola, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B23P / ;
U.S. Cl.
CPC ...
427 82 ; 156655 ; 156 98 ; 252791 ; 427142 ;
Abstract
Immersion of semiconductor devices, particularly diodes, having a defective tin plating thereon in a solution of 5 - 20 percent by weight trichloroacetic acid, 0.1 to 5 percent by weight of a compound selected from the group consisting of cationic, anionic, and nonionic surfactants and the balance water effectively removes the tin therefrom. The process is effective at room temperature but preferably is performed at approximately 100.degree. C.
Quick Actions:
Flowers, Dervin. (1977). Tin strip formulation for metal to glass seal diodes (U.S. Patent No. 4009299). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4009299
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile