Patent ID: 11327093

Abstract:
The socket 20 comprises a first contact probe 21 which has a first end which is to contact with a first terminal 91 of the DUT 90, a second contact probe 22 which has a second end which is to contact with a second terminal 92 of the DUT 90, and an inner housing 23 which holds the first and second contact probes 21, 22 so that the first end and the second end are located on substantially the same virtual plane VP, and the length L2 of the second contact probe 22 is shorter than the length L1 of the first contact probe 21. The interposer 30 comprises a substrate 31 which has a through hole 311 into which the first contact probe 21 is to be inserted, and a wiring pattern 32 which is disposed on the substrate 31, and the wiring pattern 32 has a pad 321 with which the second contact probe 22 is to contact.