White Papers
The Evolution of Build-Up Package Technology and Its Design Challenges
Overview This paper reviews Sequential Build-Up (SBU) laminate substrate development from its beginning in 1988. These laminated substrates are nonuniform structures composed of three elements: a core, build-up layers, and finishing layers. Each element has evolved to meet the demands of packaging applications. Thin-film processing has greatly enhanced the wiring capability of SBU laminate substrates and has made this technology very suitable for high-performance designs. This paper focuses on the challenges encountered by IBM during the design, manufacture, and reliability testing phases of development of SBU substrates as solutions for Application-Specific Integrated Circuit (ASIC) and microprocessor packaging applications.
| Publisher | IBM | File Format | |
|---|---|---|---|
| Date Published | September 2005 | ||
| Format | White Papers | ||
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