Ehwa Diamond Industrial Co., Ltd.

Samsung Electronics Co., Ltd.

Hwa Jin Jeong

Young Ho Kim

Jang Hyuk Ahn

Jong Moo Kang

Jong Kuk Park

Grinding pad

Pad for grinding stone

A non-packaged semiconductor chip testing apparatus includes a lead frame having chips with a plurality of leads which are electrically isolated from the other leads, and are supported by adhesive tape and bonded to the chip via wires. The lead frame is placed on a holding plate having windows, so that the leads of the lead frame are exposed through the windows and contact test probes located under the plate. The test probes, such as pogo pins or bending leads, extend upwardly from a substrate. A base receives the substrate, with cables extending from a lower surface of the substrate passing through openings in the base, where they then connect a test board. After being pressed down by a pressing cover, the lead frame on the holding plate moves down so that the leads may contact the test probes. The pressing cover is movable up and down. Guide pins on the base are simultaneously inserted into through holes of the holding plate and lead frame, and extend into recesses in the pressing cover to ensure alignment.

Testing apparatus for non-packaged semiconductor chip

Growing community of inventors

Suwon, South Korea

Hwa Jin Jeong