发明名称 Compliant integrated circuit package
摘要 The present invention provides a method for fabricating a compliant microelectronic device package and an associated apparatus for substantially obviating thermal, compliancy and interconnection problems. Flexible, dielectric layers are used having on a first surface a plurality conductive leads which are each electrically coupled at a first end to at least one conductive pad also coupled to the first surface of the dielectric layers. A second end of the conductive leads are further coupled between the dielectric layers across a bonding gap. A compliant layer is then coupled to the bottom surface of the dielectric layers. One of the dielectric layers is coupled to the surface of a die by one of the compliant layer such that the die bond pads are juxtaposed with respective leads in the bonding gap. This assembly is attached to a protective structure and is encapsulated. A solder mask may be placed over the exposed surface of the dielectric layers to cover the leads and prevent shoring. Further, a conductive layer may be used in the package as a ground layer of a voltage reference layer.
申请公布号 US6603209(B1) 申请公布日期 2003.08.05
申请号 US19990306623 申请日期 1999.05.06
申请人 TESSERA, INC. 发明人 DISTEFANO THOMAS H.;KARAVAKIS KONSTANTINE;MITCHELL CRAIG;SMITH JOHN W.
分类号 H01L21/56;H01L23/31;(IPC1-7):H01L23/48;H01L23/52;H01L29/40 主分类号 H01L21/56
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