公开(公告)号：US20240102860A1

公开(公告)日：2024-03-28

申请号：US18460721

申请日：2023-09-05

Applicant: CHROMA ATE INC.

Inventor： Cheng Chih HSIEH ,  Tien Chi WU ,  Ming-Long LEE ,  Yu-Hsuan LIN ,  Tsung-I LIN ,  Chien-Hao MA

IPC: G01J3/16

CPC classification number: G01J3/16

Abstract: An apparatus includes a six-axis correction stage, an auto-collimation measurement device, a light splitter, a telecentric image measurement device, and a controller. The six-axis correction stage carries a device under test; the auto-collimation measurement device is arranged above the six-axis correction stage along a measurement optical axis; the light splitter is arranged on the measurement optical axis and is interposed between the six-axis correction stage and the auto-collimation measurement device. A method controls the six-axis correction stage to correct rotation errors in at least two degrees of freedom of the device under test according to a measurement result of the auto-collimation measurement device, and controls the six-axis correction stage to correct translation and yaw errors in at least three degrees of freedom of the device under test according to a measurement result of the telecentric image measurement device by means of the controller.

公开(公告)号：US20220206059A1

公开(公告)日：2022-06-30

申请号：US17551246

申请日：2021-12-15

Applicant: CHROMA ATE INC.

Inventor： Ming Cheng HUANG ,  Tsung-I LIN ,  Hui-Jung WU ,  Chien-Ming CHEN

IPC: G01R31/28 ,  G01R1/04

Abstract: The present invention relates to a low-thermal resistance pressing device for a socket, which mainly comprises a housing, an inner collar, a heat conductive pressing block, a bearing collar and a locking member. The locking member on the housing is used to lock the socket. The inner collar is threadedly engaged with the housing. The bearing collar is located between the inner collar and the heat conductive pressing block. In the case of rotating the inner collar in the housing, the bearing collar drives the heat conductive pressing block to move axially so as to exert an axial force to a device to be tested. Because the heat conductive pressing block protrudes from the upper and lower surfaces of the housing, one end thereof can be in contact with a temperature control module, and the other end thereof can be in contact with the device to be tested.