公开(公告)号：EP4006561A1

公开(公告)日：2022-06-01

申请号：EP21208608.6

申请日：2021-11-16

Applicant: Chroma ATE Inc.

Inventor： Yang, Kao-Shan ,  Lin, Ching-Li

IPC: G01R31/28 ,  G01R1/073

Abstract: Herein disclosed is a test head connection method, the method comprises the following steps. First, a load board and a card holder are provided between a test head and a probing machine, the card holder is disposed in the probing machine, and the card holder is used to accommodate the load board. A vacuum function of the test head is activated, and the test head is moved to align the card holder. The test head is moved to touch the load board in the card holder. At least one clamping piece is used to fix the test head and the card holder. Wherein the load board and a wafer are connected by direct probing.

公开(公告)号：US12255532B2

公开(公告)日：2025-03-18

申请号：US18050060

申请日：2022-10-27

Applicant: CHROMA ATE INC.

Inventor： Chen Yuan Wu ,  Chih Hsien Wang ,  Kuo Cheng Wang ,  Cheng Chung Lee

IPC: H02M3/157 ,  H02M1/00 ,  H02M3/139 ,  H02M3/158

Abstract: A modular AC/DC power conversion module for power sources and loads and a method of driving the same is provided. When an AC/DC converter is electrically coupled to an external power source, a microprocessor is electrically energized by a buck auxiliary circuit, under control of the microprocessor, a DC/DC converter is activated for a certain time period, and then, the AC/DC converter is activated. Thereafter, an output voltage of the AC/DC converter is boosted, and an output voltage of the DC/DC converter is boosted accordingly. Power elements in the downstream side DC/DC converter are activated first, and then power elements in the upstream side AC/DC converter are activated, thereby an inrush current is suppressed. Once the external power source is connected, the buck auxiliary circuit will automatically reduce a voltage of the power input to activate the module. It realizes that the module will autonomously operate after being electrically energized.

公开(公告)号：US20250012830A1

公开(公告)日：2025-01-09

申请号：US18638163

申请日：2024-04-17

Applicant: CHROMA ATE INC.

Inventor： Ching-Li LIN ,  Kao-Shan YANG

IPC: G01R1/04 ,  H05K7/12 ,  H05K7/14

Abstract: An adapter bracket includes a holder and a fixing element. The holder includes a first strip-shaped body and a second strip-shaped body. The first strip-shaped body is formed with a plurality of first notches linearly arranged on a first coupling surface of the first strip-shaped body. The second strip-shaped body is formed with a plurality of second notches linearly arranged on a second coupling surface of the second strip-shaped body. The fixing element detachably couples the first strip-shaped body and the second strip-shaped body together, so that the first coupling surface and the second coupling surface are in contact with each other, and the first notches and the second notches are jointly combined into a plurality of fastening holes arranged linearly, and each of the fastening holes can hold an object therein.

公开(公告)号：US12050127B2

公开(公告)日：2024-07-30

申请号：US17476595

申请日：2021-09-16

Applicant: CHROMA ATE INC.

Inventor： Hsuan-An Chen ,  Chi-Ming Wen

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/44

CPC classification number: G01J3/0235 ,  G01J3/0202 ,  G01J3/4406 ,  G01J2003/106

Abstract: A fluorescence detection system is provided and adapted to provide a selectable excitation beam to an optical transmission path for irradiation of a device under test, including a driving module, a lighting module, a first optical module and a second optical module. The driving module includes a first shaft and a second shaft parallel thereto. The lighting module is fixed to the first shaft. The first optical module and the second optical module are fixed to the second shaft. A driving operation enables the driving module to rotate the lighting module, the first optical module and the second optical module simultaneously, determining quickly a combination of one light source, one filter and one spectroscopic module on the optical transmission path, with the combination corresponding in position to the device under test, so as to reduce the volume and cost the fluorescence detection system.

公开(公告)号：US11901213B2

公开(公告)日：2024-02-13

申请号：US17521952

申请日：2021-11-09

Applicant: Chroma Ate Inc.

Inventor： Chien-Ming Chen ,  Chin-Yi Ouyang

IPC: H01L21/683 ,  H01L21/677 ,  H01L21/67 ,  H01L21/673

CPC classification number: H01L21/6838 ,  H01L21/673 ,  H01L21/67144 ,  H01L21/67259 ,  H01L21/67775

Abstract: The present invention relates to a chip transfer device capable of floatingly positioning a chip and a method for floatingly positioning a chip. When a chip is placed in a chip socket, a control unit controls an air pressure switching valve to allow at least one vent hole to be communicated with a positive air pressure source. An air flow from the positive air pressure source blows a lower surface of the chip through the vent hole, so that the at least one chip is air-floated. Accordingly, when the chip socket is communicated with the positive air pressure source, the air flow blows the lower surface of the chip in the chip socket through the vent hole, so that the chip is air-floated in the chip socket to reduce the error displacement of the chip offset.

公开(公告)号：US20230098042A1

公开(公告)日：2023-03-30

申请号：US17931148

申请日：2022-09-12

Applicant: CHROMA ATE INC.

Inventor： Chin-Yi OUYANG ,  Chin-Yuan KUO ,  Chang-Jyun HE ,  Yung-Fan CHU

IPC: G01R31/28

Abstract: The present invention relates to a temperature control system, a temperature control method and an image sensor-testing apparatus having the system. The temperature control method mainly comprises the steps of regulating the temperatures of a plurality of devices under test (DUTs) to a specific temperature in a temperature control zone; transferring the plurality of devices under test to a test plate and placing them into a plurality of test slots respectively; and measuring the temperatures of the device under test by the temperature-sensing elements in the test slots, wherein when at least one temperature-sensing element of the temperature-sensing elements detects that the device under test in the test slot corresponding to said at least one temperature-sensing element fails to meet the specific temperature, a temperature control element corresponding to the test slot regulates the temperature of the device under test.

公开(公告)号：US20230086325A1

公开(公告)日：2023-03-23

申请号：US17849771

申请日：2022-06-27

Applicant: CHROMA ATE INC.

Inventor： Chien-Ming CHEN ,  Ming-Yuan HUANG

IPC: G01N3/12 ,  G01N3/04 ,  G01N3/06 ,  H05K13/04

Abstract: The present invention relates to a quick release assembly for a pressing head and an electronic device testing apparatus having the same. The quick release assembly comprises an upper base, an actuator and a lower base. When the lower base is to be mounted on the upper base, the actuator drives a movable head to a first position; the movable head passes through an open slot of the lower base; then, the actuator drives the movable head to a second position so that the lower base is retained by the movable head. The open slot of the lower base is firstly fitted on the movable head of the actuator located on the upper base. At this time, the actuator is controlled to drive the movable head to the second position from the first position.

公开(公告)号：US20230086266A1

公开(公告)日：2023-03-23

申请号：US17822816

申请日：2022-08-29

Applicant: CHROMA ATE INC.

Inventor： Chin-Yi OUYANG ,  Chien-Ming CHEN

IPC: G01R31/28

Abstract: The present invention relates to an electronic device testing apparatus and a testing method thereof. When the test is completed, a pressing head picks up a tested electronic device from a test socket and places the tested electronic device on an output carrier, the output carrier moves out of a test zone, and an input carrier follows immediately after the output carrier and successively moves into the test zone at the same speed; after the pressing head picks up an electronic device to be tested from the input carrier, the input carrier moves out of the test zone, and the pressing head places the electronic device to be tested in the test socket. Accordingly, in the present invention, the operation of the pressing head is simplified, and the overall test efficiency is improved.

公开(公告)号：US20230023844A1

公开(公告)日：2023-01-26

申请号：US17580705

申请日：2022-01-21

Applicant: CHROMA ATE INC.

Inventor： Chin-Yi Ouyang ,  Wei-Cheng Kuo ,  Chien-Ming Chen ,  Xin-Yi Wu

IPC: G05B19/401 ,  G01B21/04

Abstract: A position calibration system and method are disclosed, in which a control unit is provided to control a positioner sensing module to scan a circular positioner provided on a positioning substrate in a first direction and a second direction so as to acquire midpoints of two scanned line segments and acquire an intersection of lines extending from the two center points in a direction perpendicular to the first and the second directions as a calibration reference point, which correspond to a centroid (a center) of the circular positioner. The calibration reference point functions as a reference point for positioning the positioning substrate with respect to the positioner sensing module and is stored in a memory unit. The calibration reference point can be used as a positioning point during installation of a machine and can also be used for calibration of a position of the machine.

公开(公告)号：US20220311363A1

公开(公告)日：2022-09-29

申请号：US17697978

申请日：2022-03-18

Applicant: CHROMA ATE INC.

Inventor： YU-TING LIN ,  CHENG-TSUNG LIN

IPC: H02P6/08 ,  H02P9/00 ,  H02P25/026

Abstract: The present application discloses a motor controller, a motor control method and a computer program product for vehicle assist control. An assist torque command for a motor device to perform vehicle assist control is generated according to an execution command of a vehicle assist determination unit and a rotor position signal and a rotor speed signal of a motor device. An original position signal of the motor device and the rotor position signal are calculated, and a position ratio calculation is performed to generate a front-order torque command. A torque damping command is generated according to the speed ratio calculation based on the rotor speed signal, and is calculated with the front-order torque command to generate an assist torque command. Thus, position information of the rotor of the motor device can be directly used in the calculation and speed information is at the same time used for an assist calculation, thereby preventing an error and solving the issue of sliding during parking.