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Serial device compaction for improving integrated circuit layouts

DC
  • US 6,297,668 B1
  • Filed: 11/23/1999
  • Issued: 10/02/2001
  • Est. Priority Date: 11/25/1998
  • Status: Expired due to Fees
First Claim
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1. A logic device formed on a semiconductor substrate for producing an output signal based on a plurality of input signals, the logic device comprising a first plurality of transistors of a first channel type, each of the first plurality of transistors coupled to a first supply node and a different node of at least three switchable nodes, for selectively pulling the switchable nodes to a first logic level based on the plurality of input signals, each of the switchable nodes forming a direct connection point between a drain of a transistor of the first channel type and a drain of a transistor of a second channel type, wherein all of the first plurality of transistors are formed using a first contiguous active area disposed within the semiconductor, wherein the first contiguous active area contains no permanently inactive transistors within the logic device.

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