Historical version backtracking method for vector layers and pattern spots

The invention discloses a historical version backtracking method for vector layers and pattern spots. The method comprises the following steps: creating a layer information table and a layer updating table in a database; when the vector database is stored, judging whether the vector database is stor...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIU JIUSHENG, XIANG QIQUAN, WEN JIAN, TANG SHUANG, FU QIANG, TAN DAN, WEI TAO, YE BIN, XU JIA, LI XIAOBO, HU SHILIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
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