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Prospects for WSI: A Manufacturing Perspective
April 1992 (vol. 25 no. 4)
pp. 58-65

A manufacturing cost model that describes the relationships among characteristics of modern manufacturing processes, investment costs to achieve these characteristics, and basic IC parameters, including both die size and minimum feature size, is used to explain major trends in the past 20 yr of microelectronics. Results from this model indicate that it is not possible to continue progress in microelectronics through minimizing feature size, that the drive toward larger dies will gain momentum and lead gradually toward wafer-scale integration (WSI), and that manufacturing costs will keep WSI from becoming practical in the immediate future. Active-substrate flip-chip multichip modules (MCMs) are presented as an alternative that may provide both the performance gain and cost efficiency required.

Citation:
Wojciech Maly, "Prospects for WSI: A Manufacturing Perspective," Computer, vol. 25, no. 4, pp. 58-65, April 1992, doi:10.1109/2.129050
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