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. 28, 1999
Filed:
May. 20, 1997
Applicant:
Inventor:
David A Morgan, Stillwater, MN (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
4302701 ; 4302811 ;
Abstract
A thermosensitive resist used in the manufacturing of printed circuit boards comprising a mixture of polyacrylic acid, a salt of a long chain fatty acid such as silver behenate, an infra-red absorber and modifiers such as additional polymers. In the unheated form the resist can be easily washed away with water-based mild solutions or pure water. When selectively heated by an IR laser a non-soluble, etch resistant composition is formed protecting the copper clad printed circuit board from the etchants used in the process.
Morgan, David. (1999). Thermosensitive etch resist for forming a mask (U.S. Patent No. 5958647). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5958647
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile