US 11,892,500 B2
Elevator unit for transferring tray and test handler including same
Jin Ho Kang, Cheonan-si (KR); and Joo Hyun Seo, Cheonan-si (KR)
Assigned to SEMES CO., LTD., Cheonan-si (KR)
Filed by SEMES CO., LTD., Cheonan-si (KR)
Filed on Jul. 5, 2022, as Appl. No. 17/857,978.
Claims priority of application No. 10-2021-0089032 (KR), filed on Jul. 7, 2021.
Prior Publication US 2023/0010924 A1, Jan. 12, 2023
Int. Cl. G01P 3/48 (2006.01); G01R 31/28 (2006.01); H01L 21/677 (2006.01); B66B 9/00 (2006.01)
CPC G01R 31/2867 (2013.01) [B66B 9/00 (2013.01); G01R 31/2862 (2013.01); H01L 21/677 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An elevator unit for transferring a tray, the elevator unit comprising:
a tray guide block on which a tray is seated;
a wrapping connector driving member configured to elevate and lower the tray guide block;
a fixed fastener connected to the tray guide block; and
a corrective fastener connected to the wrapping connector driving member and configured to rotatably coupled to the fixed fastener.