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    • 6. 发明专利
    • MANUFACTURE OF WIRING SUBSTRATE
    • JPS63299295A
    • 1988-12-06
    • JP13159687
    • 1987-05-29
    • TOKUYAMA SODA KK
    • IWASAKI MASATOSHI
    • B29C39/12B29C45/02B29C45/16B29L31/34H05K3/20
    • PURPOSE:To form a wiring pattern on the bottom of a recessed part in a board by a method wherein a resin is molded by using a molding frame for resin molding use where the wring pattern is plated on a molding face and the wiring pattern is transcribed onto the surface of a resin molded body. CONSTITUTION:A resist 3 is printed on a molding face to form a wiring pattern. The face is plated and a plated wiring pattern 2 is formed. The resist 3 is removed by using an exfoliation agent or the like; the plated wiring pattern is formed on a face of a core 1. It is preferable to previously form a continuous layer 7 whose adhesive performance is small against the molding face and is strong against a plated film before the plated wiring pattern is formed on the molding face. Then, a resin is molded by using a molding frame having the molding face where the plated wiring pattern 2 is formed; the plated wiring pattern is transcribed onto the surface of a resin molded body. That is to say, a cavity 4 is mated with the core 1; the resin is injected from a spool 5; the resin molded body 6 is obtained. When the continuous layer 7 has been formed, the continuous layer 7 is removed while it is brought into contact with an etching solution within an extent that the plated wiring pattern 2 is not dis solved.