发明名称 ELECTRONIC PACKAGE WITH MULTILEVEL CONNECTIONS
摘要 A circuitized substrate for use in an electronic package wherein the substrate (11), e.g., ceramic, includes more than one conductive layer (15), e.g., copper, thereon separated by a suitable dielectric material, e.g., polyimide. Each layer includes its own conductive location(s) which are designed for being directly electrically connected, e.g., using solder, to respective contact sites on a semiconductor chip (17) positioned on the substrate to form part of the final package. A method for making such a package is also provided. Significantly, the resulting package does not include interconnections between the conductive layers at the desired contact locations, these locations, as mentioned, instead being directly connected to the chip. <IMAGE>
申请公布号 KR100187867(B1) 申请公布日期 1999.06.01
申请号 KR19950009705 申请日期 1995.04.25
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 LEWIS, REBERT LEE;SEBESTA, ROBERT DAVID;WAITS, DANIEL MARTIN
分类号 H05K1/18;H01L21/48;H01L21/60;H01L23/12;H01L23/498;H01L23/538;H05K1/11;H05K3/34;H05K3/40;H05K3/46 主分类号 H05K1/18
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