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. 21, 1989
Filed:
Feb. 25, 1988
James C Mackanic, Rocklin, CA (US);
Dawn M Lelko, Citrus Heights, CA (US);
Steven A Shugart, Rocklin, CA (US);
James K Koch, Rocklin, CA (US);
Helwett-Packard Company, Palo Alto, CA (US);
Abstract
A method for providing an electrical connection (via) between the top and bottom of a printed circuit board (PCB) is presented. An eyelet extends through a hole in the PCB. The top of the PCB has a first conductive layer. Around the hole the first conductive layer is shaped such that a conductive pad is isolated from the rest of the first conductive layer, except that spokes of the first conductive layer extend from the conductive pad to the rest of the first conductive layer. The eyelet is crimped such that crimped fingers or tabs of the eyelet cause the eyelet to be mechanically retained in the hole. The tabs are curved so that the tabs do not lie flat upon the conductive pad. The bottom of the PCB is then wave soldered so that a base of the eyelet is electrically coupled to a conductive layer on the bottom of the PCB and the tabs are electrically coupled to the conductive pad.