发明名称 PROCESS FOR PRODUCING FORMABLE AND HIGH STRENGTH LEADFRAMES IN SEMICONDUCTOR PACKAGES
摘要 <p>A glass sealed semiconductor package (10) includes a metal base number (12), a metal housing or lid member (14) shaped to provide a hollow enclosure (16) for receiving an electronic component (18). A leadframe (20) with a top surface (29) is sealed between the cover (14) and base (12) by a sealing glass (22) such as a lead borate type glass and filler. The leadframe (20) is constructed from a precipitation hardenable copper alloy which is relatively soft prior to exposure to the glass sealing times and temperatures and the leadframe legs (24, 26) may be readily bent to a desired radius. The leadframe is much harder subsequent to the exposure to the glass sealing times and temperatures and resists flexure.</p>
申请公布号 WO1988005254(A1) 申请公布日期 1988.07.14
申请号 US1988000019 申请日期 1988.01.12
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