REAL CHIP SIZE 3-DIMENSIONAL - STACKED PACKAGEAuthor: Takao Yamazaki et al.
Company: NEC Corporation
Date Published: 2/18/2003 Conference: Pan Pacific Symposium
This paper describes a newly developed ultra high-density three-dimensional (3-D) stacked package called a flexible carrier folded real chip size package (FFCSP). The FFCSP is constructed by stacking very thin single chip packages of real chip size on top of one another. Each single chip package consists of a LSI chip and a small piece of Flexible Printed Circuit (FPC), which has an insulating layer made of thermoplastic resin.
The FFCSP’s advantages are its small size, thinness, highly flexible assembly, and a good test yield compared with conventional stacked multi chip packages (S-MCPs). The FFCSP will enable the future miniaturization and raise the functionality of the next wave of mobile electronics products.
Key words: 3-D-stacked package, FFCSP, FPC, thermoplastic resin.
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