SEMICONDUCTOR CELL AND SEMICONDUCTOR CIRCUIT USING THE SAME

PROBLEM TO BE SOLVED: To provide a semiconductor cell capable of suppressing substrate-potential dependency of an operation speed without increasing substrate power supply systems and saving the area thereof while guaranteeing the operation.SOLUTION: A buffer circuit 101 including one N-type well NW...

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Bibliographic Details
Main Author NAKANISHI KAZUYUKI
Format Patent
LanguageEnglish
Japanese
Published 08.06.2017
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Summary:PROBLEM TO BE SOLVED: To provide a semiconductor cell capable of suppressing substrate-potential dependency of an operation speed without increasing substrate power supply systems and saving the area thereof while guaranteeing the operation.SOLUTION: A buffer circuit 101 including one N-type well NW1 formed on a substrate and one P-type well PW1 includes P-type transistors 1 and 3 and N-type transistors 2 and 4 formed in either the N-type well NW1 or the P-type well PW1. The substrate node of the P-type transistor 1 and the substrate node of the N-type transistor 2 are separated from each other, the substrate node of the P-type transistor 1 and the substrate node of the N-type transistor 4 are connected to each other, and the substrate node of the N-type transistor 2 and the substrate node of the P-type transistor 3 are connected to each other.SELECTED DRAWING: Figure 1A 【課題】基板電源系統を増やさずに、動作速度の基板電位依存性を抑制し、動作保証しつつ省面積化された半導体セルを提供する。【解決手段】基板に形成された1つのN型ウェルNW1と1つのP型ウェルPW1とを含むバッファ回路101であって、バッファ回路101は、N型ウェルNW1およびP型ウェルPW1のいずれかに形成された、P型トランジスタ1および3ならびにN型トランジスタ2および4を備え、P型トランジスタ1の基板ノードとN型トランジスタ2の基板ノードとは分離されており、P型トランジスタ1の基板ノードとN型トランジスタ4の基板ノードとが接続され、N型トランジスタ2の基板ノードとP型トランジスタ3の基板ノードとが接続されている。【選択図】図1A
Bibliography:Application Number: JP20150234102