发明名称 ELECTRONIC COMPONENT WITH LEAD USING LEAD-FREE SOLDERING
摘要 <p><P>PROBLEM TO BE SOLVED: To solve the problem that a flow process executed after a reflow soldering process causes a warp of a board, solder remelting, etc., due to heat from flow soldering, thus leading to the separation of an electronic component. <P>SOLUTION: A semiconductor device includes a semiconductor chip having a plurality of electrodes, a plurality of leads connected electrically to the electrodes of the semiconductor chip via bonding wires, and a resin on which the semiconductor chip is mounted. The leads is composed of two or more kinds of leads different in rigidity. <P>COPYRIGHT: (C)2007,JPO&INPIT</p>
申请公布号 JP2007242743(A) 申请公布日期 2007.09.20
申请号 JP20060060432 申请日期 2006.03.07
申请人 HITACHI LTD 发明人 NAKATSUKA TETSUYA;SERIZAWA KOJI
分类号 H01L23/50 主分类号 H01L23/50
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