Patent ID: 9000785
Filing Date: 2015-04-07
Classification: G01R,H01L

Abstract:
1. A test structure comprising: a plurality of test pads comprising at least one first test pad, and at least one common test pad; a direct current (DC) test structure comprising a test transistor, said DC test structure coupled to said at least one first test pad, and said at least one common test pad, and configured to test at least one DC property of said test transistor; and an alternating current (AC) test structure comprising a plurality of transistors adjacent said test transistor, said AC test structure coupled to said test transistor, and said at least one common test pad, said AC test structure configured to test at least one AC property of said test transistor; said test transistor and each of said plurality of transistors comprising a control terminal coupled to said at least one common test pad; said plurality of transistors configured to provide conformity transistors shared by said AC test structure and said DC test structure.