Self-assembly process for chip-to-wafer three-dimensional integration

T. Fukushima; Y. Yamada; H. Kikuchi; T. Tanaka; M. Koyanagi

doi:10.1109/ECTC.2007.373895

Self-assembly process for chip-to-wafer three-dimensional integration

T. Fukushima, Y. Yamada, H. Kikuchi, T. Tanaka, M. Koyanagi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

28 Citations (Scopus)

Abstract

We have proposed chip-to-wafer stacking for three-dimensional (3D) integration. To realize the chip-to-wafer 3D integration, five key technologies of through-Si interconnection and microbump formation, chip-to-wafer alignment, underfilling, and chip thinning were investigated. Three-layer stacked chips with a layer thickness of several tens microns were fabricated by using the key technologies. Each chip was serially and mechanically aligned and bonded onto a support LSI wafer. In addition, we newly introduce a stacking technique using self-assembly as a key process for advanced chip-to-wafer 3D integration. High-precision alignment with an accuracy of within 1 μm was obtained and stacking throughput can be dramatically improved by the self-assembly.

Original language	English
Title of host publication	Proceedings - 57th Electronic Components and Technology Conference 2007, ECTC '07
Pages	836-841
Number of pages	6
DOIs	https://doi.org/10.1109/ECTC.2007.373895
Publication status	Published - 2007 Oct 22
Event	57th Electronic Components and Technology Conference 2007, ECTC '07 - Sparks, NV, United States Duration: 2007 May 29 → 2007 Jun 1

Publication series

Name	Proceedings - Electronic Components and Technology Conference
ISSN (Print)	0569-5503

Other

Other	57th Electronic Components and Technology Conference 2007, ECTC '07
Country	United States
City	Sparks, NV
Period	07/5/29 → 07/6/1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Self-assembly process for chip-to-wafer three-dimensional integration. / Fukushima, T.; Yamada, Y.; Kikuchi, H.; Tanaka, T.; Koyanagi, M.

Proceedings - 57th Electronic Components and Technology Conference 2007, ECTC '07. 2007. p. 836-841 4249981 (Proceedings - Electronic Components and Technology Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Fukushima, T, Yamada, Y, Kikuchi, H, Tanaka, T & Koyanagi, M 2007, Self-assembly process for chip-to-wafer three-dimensional integration. in Proceedings - 57th Electronic Components and Technology Conference 2007, ECTC '07., 4249981, Proceedings - Electronic Components and Technology Conference, pp. 836-841, 57th Electronic Components and Technology Conference 2007, ECTC '07, Sparks, NV, United States, 07/5/29. https://doi.org/10.1109/ECTC.2007.373895

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title = "Self-assembly process for chip-to-wafer three-dimensional integration",

abstract = "We have proposed chip-to-wafer stacking for three-dimensional (3D) integration. To realize the chip-to-wafer 3D integration, five key technologies of through-Si interconnection and microbump formation, chip-to-wafer alignment, underfilling, and chip thinning were investigated. Three-layer stacked chips with a layer thickness of several tens microns were fabricated by using the key technologies. Each chip was serially and mechanically aligned and bonded onto a support LSI wafer. In addition, we newly introduce a stacking technique using self-assembly as a key process for advanced chip-to-wafer 3D integration. High-precision alignment with an accuracy of within 1 μm was obtained and stacking throughput can be dramatically improved by the self-assembly.",

author = "T. Fukushima and Y. Yamada and H. Kikuchi and T. Tanaka and M. Koyanagi",

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AU - Fukushima, T.

AU - Yamada, Y.

AU - Kikuchi, H.

AU - Tanaka, T.

AU - Koyanagi, M.

PY - 2007/10/22

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N2 - We have proposed chip-to-wafer stacking for three-dimensional (3D) integration. To realize the chip-to-wafer 3D integration, five key technologies of through-Si interconnection and microbump formation, chip-to-wafer alignment, underfilling, and chip thinning were investigated. Three-layer stacked chips with a layer thickness of several tens microns were fabricated by using the key technologies. Each chip was serially and mechanically aligned and bonded onto a support LSI wafer. In addition, we newly introduce a stacking technique using self-assembly as a key process for advanced chip-to-wafer 3D integration. High-precision alignment with an accuracy of within 1 μm was obtained and stacking throughput can be dramatically improved by the self-assembly.

AB - We have proposed chip-to-wafer stacking for three-dimensional (3D) integration. To realize the chip-to-wafer 3D integration, five key technologies of through-Si interconnection and microbump formation, chip-to-wafer alignment, underfilling, and chip thinning were investigated. Three-layer stacked chips with a layer thickness of several tens microns were fabricated by using the key technologies. Each chip was serially and mechanically aligned and bonded onto a support LSI wafer. In addition, we newly introduce a stacking technique using self-assembly as a key process for advanced chip-to-wafer 3D integration. High-precision alignment with an accuracy of within 1 μm was obtained and stacking throughput can be dramatically improved by the self-assembly.

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Self-assembly process for chip-to-wafer three-dimensional integration

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