US 11,747,382 B2
Test equipment and test device thereof
Bo-Siang Fang, Taichung (TW); Kuang-Sheng Wang, Taichung (TW); Hsinjou Lin, Taichung (TW); Shao-Meng Sim, Taichung (TW); and Mao-Hua Yeh, Taichung (TW)
Assigned to Siliconware Precision Industries Co., Ltd., Taichung (TW)
Filed by Siliconware Precision Industries Co., Ltd., Taichung (TW)
Filed on Dec. 20, 2019, as Appl. No. 16/723,233.
Claims priority of application No. 108138421 (TW), filed on Oct. 24, 2019.
Prior Publication US 2021/0123962 A1, Apr. 29, 2021
Int. Cl. G01R 29/10 (2006.01); H04B 17/29 (2015.01)
CPC G01R 29/105 (2013.01) [H04B 17/29 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A testing device, comprising:
a cylinder made of metal and having a cavity and an opening in communication with the cavity, wherein an end of the cylinder is a bottom of the cavity, the cavity is free from having an antenna, and an inner wall of the cylinder is inclined;
a wave absorbing material disposed on the inner wall of the cylinder, wherein the wave absorbing material is free from being in contact with a portion of the bottom of the cavity; and
a carrier cover having a circuit structure and disposed on the opening for carrying a device under test, wherein the carrier cover is configured for covering the cavity, and the device under test senses reflection signals at the bottom of the cavity.