| 摘要 |
PURPOSE: A voltage generation circuit is provided to change an element characteristic change into a proper level, thereby preventing yield drop. CONSTITUTION: A voltage detection unit detects level of threshold voltage. A threshold voltage detection unit output a detection signal. A voltage(140) selects one among a plurality of distribution voltages. A voltage selection unit output a selection voltage. A inside voltage generation unit(150) generation inside voltage by using selection voltage. A voltage distribution unit(120) distributes a standard voltages into different resistance ratio.
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