发明名称 Flexible substrate folded in a U-shape with a rigidizer plate located in the notch of the U-shape
摘要 Semiconductor carrier assemblies (10, 40) use a flexible substrate (11) to connect to at least one semiconductor device (19). Preferably the flexible substrate (11) also connects to a circuit component, preferably a circuit board (31). The flexible substrate (11) is configured in a U-shaped configuration having at least one rigidizer plate (25; 41, 42) positioned in the notch of the U. Interconnections between the semiconductor device (19) and the flexible substrate (11), and, preferably, the circuit component (31) are provided by solder connections (22, 28). Preferably, two rigidizer plates (41,42) having different temperature coefficients of expansion are positioned in the notch of the U of the flexible substrate (11) and preferably a low modulus adhesive layer (50, 51, 47) is utilized in the assembly to minimize thermal stress.
申请公布号 US5386341(A) 申请公布日期 1995.01.31
申请号 US19930143594 申请日期 1993.11.01
申请人 MOTOROLA, INC. 发明人 OLSON, WILLIAM L.;CURRIER, DAVID W.;KLOSOWIAK, TOMASZ L.;FULCHER, MARK
分类号 H01L23/13;H01L23/498;H01L23/538;(IPC1-7):H05K7/20;H05K1/00 主分类号 H01L23/13
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