Patent ID: 7491102
Filing Date: 2009-02-17
Classification: H01L,H01R,H05K,Y10S

Abstract:
1. A printed circuit wiring board comprising: a substrate; a conductor pattern on the substrate; a flexible flat cable comprising a connection section; and a connector provided on the substrate, the connector comprising a contact section, a fitting port section and a housing configured to retain the connecting section of the flexible flat cable, the contact section comprising a first region comprising copper and a second region formed on the first region, at least a portion of a surface of the second region comprising tin and copper from a tin-copper alloy, wherein the contact section is obtained by annealing a copper main body and a tin layer plated on the copper main body until a tin-copper alloy phase existing on a copper phase reaches to at least the part of the surface region of the second region and the contact section is made by substantially annealing at a temperature from about 220° C. to about 400° C.; and the connection section is obtained by annealing a copper main body and a tin layer plated on the copper main body until a tin-copper alloy phase existing on a copper phase reaches to at least the part of the surface region of the second region and the connection section is made by substantially annealing, at a temperature from about 220° C. to about 300° C.