发明名称 Guide hole sleeves for boat transports supporting semiconductor device assemblies
摘要 Damage to the pins and ceramic body of pin grid array type semiconductor device assemblies is avoided by providing ceramic bushings in the pin-receiving holes of a boat transport. The bushings elevate the package body above the platform surface of the boat, and also alleviate problems associated with unequal thermal expansion of the metal boat and the ceramic package. In an alternate embodiment, a ceramic insert formed as a square ring encompassing an area roughly equivalent to the area of the package body is provided with holes for receiving the pins, and the boat transport has a cavity for receiving and retaining the ceramic insert.
申请公布号 US5275326(A) 申请公布日期 1994.01.04
申请号 US19920933429 申请日期 1992.08.21
申请人 LSI LOGIC CORPORATION 发明人 FIEDLER, WALLACE A.
分类号 H01L21/677;H05K13/02;(IPC1-7):B23K37/04 主分类号 H01L21/677
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