公开(公告)号：US20200267837A1

公开(公告)日：2020-08-20

申请号：US16682282

申请日：2019-11-13

Applicant: Samsung Display Co., Ltd.

Inventor： Seunghwan CHEONG ,  Ahyoung SON ,  Chanyoon WOO

IPC: H05K1/14 ,  H01R12/52 ,  H05K1/11 ,  G01R31/04

Abstract: A connection substrate includes a first substrate including first and second upper pads, and an inner wire electrically connecting the first and second upper pads, and a second substrate including first and second lower pads connected to the first and second upper pads, respectively. The second substrate includes a first test point disposed at an end of a first test wire extending from the first lower pad, a second test point disposed at an end of a second test wire extending from the second lower pad, and a dummy test point disposed at an end of a dummy test wire branched from a predetermined position of the second test wire and extended. A length of the dummy test wire is determined such that a resistance value of the dummy test wire is equal to a resistance value of the first test wire.