US 11,747,395 B2
Board-like connector, single-arm bridge of board-like connector, and wafer testing assembly
Kai-Chieh Hsieh, Taoyuan (TW); Chao-Chiang Liu, Taoyuan (TW); Meng-Chieh Cheng, Taipei (TW); and Wei-Jhih Su, Taichung (TW)
Assigned to CHUNGHWA PRECISION TEST TECH. CO., LTD., Taoyuan (TW)
Filed by CHUNGHWA PRECISION TEST TECH. CO., LTD., Taoyuan (TW)
Filed on Sep. 24, 2021, as Appl. No. 17/485,268.
Claims priority of application No. 109138184 (TW), filed on Nov. 3, 2020.
Prior Publication US 2022/0137124 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 31/28 (2006.01); H01R 12/71 (2011.01)
CPC G01R 31/2889 (2013.01) [H01R 12/714 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A wafer testing assembly, comprising:
a signal transmission board configured to be connected to a probe head;
a testing circuit board configured to be electrically coupled to a testing apparatus; and
a board-like connector sandwiched between the signal transmission board and the testing circuit board, wherein the board-like connector includes:
a plurality of single-arm bridges spaced apart from each other, wherein each of the single-arm bridges includes:
a carrier;
a cantilever extending from an inner lateral wall of the carrier along a first direction and being coplanar with the carrier;
an abutting column extending from the cantilever along a second direction perpendicular to the first direction; and
an abutting end portion curvedly extending from a distal end of the cantilever, wherein the abutting end portion is spaced apart from the abutting column along the first direction; and
an insulating layer connecting the carriers of the single-arm bridges, wherein the abutting column of each of the single-arm bridges protrudes from the insulating layer;
wherein the abutting columns of the single-arm bridges abut against one of the signal transmission board and the testing circuit board, and the abutting end portions of the single-arm bridges abut against another one of the signal transmission board and the testing circuit board;
wherein the signal transmission board and the testing circuit board are electrically coupled to each other through the board-like connector.
 
9. A board-like connector for being sandwiched between two boards so as to allow the two boards are electrically coupled to each other by the board-like connector, the board-like connector comprising:
a plurality of single-arm bridges spaced apart from each other, wherein each of the single-arm bridges includes:
a carrier;
a cantilever extending from an inner lateral wall of the carrier along a first direction and being coplanar with the carrier;
an abutting column extending from the cantilever along a second direction perpendicular to the first direction; and
an abutting end portion curvedly extending from a distal end of the cantilever, wherein the abutting end portion is spaced apart from the abutting column along the first direction; and
an insulating layer connecting the carriers of the single-arm bridges, wherein the abutting column of each of the single-arm bridges protrudes from the insulating layer;
wherein the abutting columns and the abutting end portions of the single-arm bridges are configured to abut against the two boards.
 
10. A single-arm bridge of a board-like connector for being sandwiched between two boards so as to allow the two boards are electrically coupled to each other by the single-arm bridge, the single-arm bridge comprising:
a carrier;
a cantilever extending from an inner lateral wall of the carrier along a first direction and being coplanar with the carrier;
an abutting column extending from the cantilever along a second direction perpendicular to the first direction; and
an abutting end portion curvedly extending from a distal end of the cantilever, wherein the abutting end portion is spaced apart from the abutting column along the first direction; and
wherein the abutting column of the single-arm bridge is configured to abut against one of the two boards, and the abutting end portion of the single-arm bridge is configured to abut against another one of the two boards.