Patent · US Expired

Ratioless type MIS logic circuit

US4107548A · kind A · utility

15Cited by
6References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 4, 1977
Grant dateAug 15, 1978
Priority date
Expiry dateMar 4, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D84/84
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A ratioless type MIS logic circuit comprises a logic block including at least one depletion mode FET inherently having a gate-to-source parasitic capacitance and a gate-to-drain parasitic capacitance, an output capacitance, a circuit for precharging the output capacitance and depletion mode clamping FETs connected one with each of the two ends of the logic block, the clamping FETs having their gates connected with a reference potential and the threshold voltage value of the FET in the logic block being larger than those of the clamping FETs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.