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:
Jan. 23, 2007
Filed:
Jan. 16, 2004
Vahid Goudarzi, Coral Springs, FL (US);
Vahid Goudarzi, Coral Springs, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A populated printed wiring board (PWB) () and method of manufacturing the populated PWB are taught. The populated PWB is manufactured by fabricating a PWB () with exposed copper pads (), coating the copper pads with an organic solderability preservative (OSP) (), depositing a solder paste that includes lead-free solder on the OSP covered copper pads (), placing components () and heating the PWB above a liquidous temperature of the lead-free solder in an air atmosphere (). The process allows very close spacing of components and component leads while forming reliable solder joints to components that are mechanically stressed and components that have non-negligible planarity or coplanarity tolerances.