Semiconductor device

Abstract

Abstract PURPOSE: To prevent a change in the voltage level of a substrate bias during the condition change of an internal clock by making one of a plurality of clocks reverse to the phase of another clock. CONSTITUTION: Active cycle clocks are generated in sequence by using a delay circuit when an input signal, the inverse of RAS is 'L' and precharge cycle clocks are generated in sequence when the signal, the inverse of RAS is 'H'. Each clock in a clock generator 37 produces burst of an impact ionized current. A substrate bias generator 41 on a semiconductor chip having a memory array 10 supplies a bias for such burst. Then, one of a plurality of clocks outputted from the generator 37 is made reverse to the phase of another clock.

Inventors

• 👤 Chitranjan N Reddy
• 👤 チトランジャン　エヌ．レディ
• 👤 G R Mohan Rao
• 👤 ジー．アール．モハン　ラオ

Bibliographic Details