公开(公告)号：US20210140999A1

公开(公告)日：2021-05-13

申请号：US17090835

申请日：2020-11-05

申请人： Kabushiki Kaisha Nihon Micronics

发明人： Kenichi TSURUTA ,  Takayuki HAYASHIZAKI ,  Koichiro TOKUMARU ,  Miyuki TOMOOKA

IPC分类号： G01R1/073 ,  H01R12/71 ,  H01R13/03 ,  H05K1/09

摘要： An electrical connection device includes: a wiring board in which lands are arranged on a main surface; and probes. Each of the probes has a distal end portion that contacts an object to be measured and a proximal end portion that contacts the land. A material of a surface film of the proximal end portion, which contacts the land, is a metal material different in composition from a material of the land that contacts the surface film.