Korea Institute of Science and Technology

Other

Dong Ky Shin

Myung Hwan Oh

Yun Hi Lee

Dong Ho Kim

Byeong Kwon Ju

Nam Yang Lee

Kwang Duk Ahn

Sang Youl Yoon

Seong Jae Jeung

Tae Ho Yeom

Sang Bong Kwon

Taek Sang Hahn

Hyo Sup Lee

Byung Yong Yu

Chun Woo Lee

Cheon Su Kang

Chong Hong Pyun

Tae Suk Park

Keun Ha Koh

Disclosed is a wire-type corona charger having a wire electrode disposed between ground electrode plates. The wire electrode is supported by the ends of the plurality of wire electrode supporters which are so arranged that their ends have a curvature equal to arcuately-shaped upper edge of the ground electrode plates. The curvature coincides with one of the curvatures of the horizontal axis and the vertical axis of the interior surface of the panel faceplate, while the charger is pivoted along the other curvature of the faceplate. The charger can uniformly charge the photoconductive layer and improves the charging efficiency.

Wire type corona charger for electrophotographical manufacturing of CRTs

An improved white-lite emitting electroluminescent display capable of emitting a light having a red, blue, and green wave length in a single material and having a buffer layer of Si.sub.x N.sub.y between a dielectric layer of BaTa.sub.2 O.sub.6 and a light-emitting layer, which includes a substrate; a lower dielectric layer of Bata.sub.2 O.sub.6 formed on a transparent electrode; a light-emitting layer of SrS:Pr,F formed on the lower dielectric layer; a buffer layer of Si.sub.x N.sub.y formed on the light-emitting layer; a upper dielectric layer of BaTa.sub.2 O.sub.6 formed on the buffer layer; and an upper electrode formed on the upper dielectric layer, and further includes the steps of a first step which forms a lower electrode on a substrate; a second step which forms a light-emitting layer of SrS:Pr.F on a lower dielectric layer; a third step which forms a buffer layer of Si.sub.x N.sub.y on the light-emitting layer; a fourth step which forms a upper dielectric layer of BaTa.sub.2 O.sub.6 on the buffer layer; and a fifth step which deposits an aluminum electrode on the upper dielectric layer.

White-light emitting electroluminescent display and fabricating method

A fabrication method for a test piece for observing non-contact regions in a pair of bonded semiconductor substrates includes thinning one substrate of a pair of bonded semiconductor substrates, grade-polishing the thinned semiconductor substrate and the bonded semiconductor substrates to have a predetermined graded angle relative their bonded surfaces, and dry-etching an area around the bonded surfaces of the grade-polished semiconductor substrates to reveal faults. With the thusly fabricated test piece, micro non-contact regions can be simply observed and crystal faults existing on the bonded surfaces as well as in the micro non-contact regions can be easily detected.

Fabrication method of semiconductor test piece

Growing community of inventors

Gumi-si, South Korea

Dong Ky Shin