US 12,436,171 B2
Probe card PMIC and signal switch IC supporting efficient channel control
Hyoung-Suk Yoo, Seoul (KR); and Deok-Ju Mun, Hwaseong-si (KR)
Assigned to TECHWIDU CO., LTD., Suwon-si (KR)
Appl. No. 18/683,273
Filed by TECHWIDU CO., LTD., Suwon-si (KR)
PCT Filed Jul. 8, 2022, PCT No. PCT/KR2022/009991
§ 371(c)(1), (2) Date Feb. 13, 2024,
PCT Pub. No. WO2023/043021, PCT Pub. Date Mar. 23, 2023.
Claims priority of application No. 10-2021-0122260 (KR), filed on Sep. 14, 2021.
Prior Publication US 2025/0138051 A1, May 1, 2025
Int. Cl. G01R 1/067 (2006.01); G01R 1/02 (2006.01); G01R 1/04 (2006.01); G01R 1/073 (2006.01); G01R 31/28 (2006.01)
CPC G01R 1/06766 (2013.01) [G01R 1/07342 (2013.01); G01R 31/2886 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A switch ID comprising:
a plurality of cores, each of the cores including a plurality of channels, each of the channels being connected to a device under test (DUT);
a command decoder configured to receive an identifier (ID) and a command, decode the ID and the command, and form a control signal for control of the cores and the channels; and
a selector configured to provide a signal for control of activation of the cores and the channels to correspond to the control signal output by the command decoder,
wherein the command includes switch IC selection data, OP CODE, core selection data, and channel selection data in one frame, and a command encoded to hierarchically control the plurality of cores and the plurality of channels is supported.