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. 16, 1999
Filed:
Sep. 10, 1997
Davis W Murphy, Hudson, NH (US);
Advanced Circuit Technology, Inc., Nashua, NH (US);
Abstract
A method of forming a conductive network, having relatively flexible electrical conductor areas integral with relatively rigid electrically conductor areas including (a) providing a relatively rigid laminate having a dielectric lamina supporting, at least in part, a first electrically conductive lamina which is in electrically conductive intimate contact with a second electrically conductive lamina by way of an electrically conductive barrier layer, the first and second conductive laminae being of a material etchable by an etchant which is not an etchant for the barrier layer; (b) selectively etching desired portions of the aid second electrically conductive lamina to the barrier layer in at least the relatively flexible areas using the etchant; and (c) selectively etching desired exposed metallic portions of the laminate down to the dielectric lamina to form the conductive network using an etchant, the etchant chosen to etch both the conductive lamina and the barrier layer.