2.5-Dimensional VLSI system integration

  • Authors:
  • Yangdong Deng;Wojciech P. Maly

  • Affiliations:
  • Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA;Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA

  • Venue:
  • IEEE Transactions on Very Large Scale Integration (VLSI) Systems
  • Year:
  • 2005

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Abstract

The excessive interconnection delay and fast increasing development cost, as well as complexity of the single-chip integration of different technologies, are likely to become the major stumbling blocks for the success of monolithic system-on-chips. To address the above problems, this paper investigates a new VLSI integration paradigm, the so-called 2.5-dimensional (2.5-D) integration scheme. Using this scheme, a VLSI system is implemented as a three-dimensional stacking of monolithic chips. A cost analysis framework was developed to justify the 2.5-D integration scheme from an economic point of view. Enabling technologies for the new integration scheme are also reviewed.