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Titre du Document
Chip-in-polymer: Volumetric packaging solution using PCB technology
JUNG Erik ; WOJAKOWSKI Dirk ; NEUMANN Alexander ; ...
The demand to miniaturize products especially for mobile applications and autonomous systems is continuing to drive the evolution of electronic products and manufacturing methods. One key to miniaturization developed in the past was the use of unpackaged, bare dice. Saving the volume and weight of the package, significant reduction in footprint was achieved. A next step conceived to further the miniaturization is the integration of functions on miniaturized subsystems, i.e. System-in-Package (SiP), in contrast to a full silicon integration (System-on-Chip, SoC). Here, use of recent manufacturing methods allows to merge the SiP approach with a volumetric integration. Up to now, most of the systems make use of single- or double-sided populated system carriers. Embedding of passive components was a first step forward. A new challenge is to incorporate not only passive components, but as well active circuitry (IC's) and the necessary thermal management. Ultra thin chips (i.e. silicon dies thinned down to <50μm total thickness) lend themselves to reach these goals. Chips with that thickness can be embedded in the dielectric layers of modern laminate PCB' s. Micro via technology allows to contact the embedded chip to the outer faces of the system circuitry. As a ultimate goal for microsystem integration, the embedding of optical and fluidical system components can be envisioned. This paper presents the first attempts to embed thin silicon dies in to polymeric system carriers. The
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Conférence : IEEE / CPMT / SEMI annual international electronics manufacturing technology symposium, 27, San Jose CA, USA, 2002-07-17
ISSN : 1089-8190 ISBN : 0-7803-7301-4
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