INTEGRATED CIRCUIT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a booster circuit which has higher boosting efficiency without increasing its manufacturing processes. SOLUTION: A booster circuit which uses (n) transistors Tr1 -Trn , is composed of intrinsic transistors which have threshold voltages lower than enhancement transistors which are used in other circuits. The gate length of its input side transistor tr1 is longer than that of its output side transistor Trn .