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:
May. 04, 1976
Filed:
Oct. 03, 1974
Applicant:
Inventor:
Dervin L Flowers, Scottsdale, AZ (US);
Assignee:
Motorola, Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23G / ;
U.S. Cl.
CPC ...
134-2 ; 252 791 ;
Abstract
A process for preparing an aluminum foil for coating with photoresist for the purpose of preparing an etched strip for semiconductor assembly utilizing the step of cleaning said aluminum surface with a water solution comprising one to five percent ammonium persulfate, one to five percent sodium chlorate and one to three percent of a surfactant selected from the group consisting of dioctyl sodium sulfo succinate and dodecyl benzene sulfonate.
Flowers, Dervin. (1976). Aluminum foil cleaning process (U.S. Patent No. 3954498). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3954498
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile