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:
Jun. 21, 1994
Filed:
Nov. 18, 1991
Applicant:
Inventors:
Philip D Knudsen, Northborough, MA (US);
Daniel P Walsh, Peabody, MA (US);
Assignee:
Polyonics Corporation, Newburyport, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
174262 ; 174255 ; 174257 ;
Abstract
Polyetherimide-metal laminates are formed by etching the surfaces of a polyetherimide web with a glycol-containing etchant followed by electroless nickel or cobalt deposition and then by copper deposition. The glycol-containing etchant can be utilized to form through holes through the web.