Semiconductor device

Abstract

Abstract PURPOSE:To operate a test circuit even when the number of terminals of a semiconductor device does not contain any surplus with reference of the number required for an ordinary operation. CONSTITUTION:A detection circuit 3 and a detection circuit 4 are provided. The detection circuits 3, 4 are set so as to detect the specific surrounding state of respectively different operating surrounding items. A test circuit 2 is operated by detection signals of the detection circuits 3, 4. Thereby, the test circuit 2 is operated only when two items of the detection circuits 3, 4 out of the operating surrounding items are set to the specific surrounding state.

Inventors

• 👤 Kiminori Kanamori
• 👤 公則 金森

Bibliographic Details