TEST STRUCTURE AND TEST METHOD THEREOF

A test structure on a wafer is provided. The test structure includes a plurality of cells under test, a plurality of first input pads, and a plurality of second input pads. The cells are arranged in rows and columns of a test array. Each of the first input pads is coupled to the cells in respective...

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Bibliographische Detailangaben
Hauptverfasser: HUNG, Lien-Jung, YANG, Chih-Chuan, LIN, Jing-Yi, HSU, Kuo-Hsiu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A test structure on a wafer is provided. The test structure includes a plurality of cells under test, a plurality of first input pads, and a plurality of second input pads. The cells are arranged in rows and columns of a test array. Each of the first input pads is coupled to the cells in respective column of the test array. Each of the second input pads is coupled to the cells in respective row of the test array. one of the cells which is coupled to one of the first input pads and one of the second input pads is turned on, and a current flowing through the turned-on cell is measured.