Multilevel interconnections for wafer scale integration

Autor: R. O. Carlson, C. A. Neugebauer, A. S. Bergendahl, J. F. McDonald, Andrew J. Steckl
Rok vydání: 1986
Předmět:
Zdroj: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 4:3127-3138
ISSN: 1520-8559
0734-2101
Popis: Multilevel interconnections (MLIC) are the key to successful wafer scale integration (WSI). In this paper, we present a review of various approaches used in the implementation in MLIC to both monolithic WSI and wafer scale hybrid packaging. Electrical interconnections using both thin (micron dimensions) and thick (tens of microns dimensions) dielectric and metal films are discussed from a performance standpoint. The advantages of the thick film approach for realizing transmission line performance is indicated. Techniques for implementing thick electrical interconnections such as plate‐up, via etching and lift‐off, are described. This treatment includes silicon‐die‐on‐wafer, silicon‐die‐on‐ceramic, and GaAs‐on‐silicon wafer hybrids. Fabrication approaches which have been explored by several research groups are compared. Some projections concerning yield of the wafer interconnections are calculated. Finally, a brief examination of some potential approaches to three‐dimensional stacking of wafers is made, including two‐sided population of wafers.
Databáze: OpenAIRE