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Resistance ladder network

  • US 4,703,302 A
  • Filed: 09/20/1984
  • Issued: 10/27/1987
  • Est. Priority Date: 09/20/1983
  • Status: Expired due to Term
First Claim
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1. A resistance ladder network used in an input portion of a D/A converter and formed in an LSI circuit, said resistance ladder network comprising:

  • a plurality of resistors connected in a ladder format to form part of the ladder network, each of said resistors being generally parallel with one another, wherein each resistor is positioned laterally with respect to the length of the ladder network, and wherein each of said resistors has a U-shape or V-shape having a pair of legs electrically coupled at one end thereof, and each leg having a contact end opposite said one end such that each of said resistors have their contact ends on one lateral side of said ladder network, and their one ends on the opposite lateral side of said ladder network, andwherein conductive wirings interconnecting said resistors are formed on a different substrate level of said LSI circuit from said resistors, and run generally parallel to the length of said ladder network, such that space is provided on the same substrate level as said conductive wirings for other wirings to run along the length of the ladder network superimposed on said resistors.

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