Samsung Electronics Co., Ltd.

Seong-Dong Kim

Han-Soo Kim

Min-Koo Han

Yearn-Ik Choi

A diode includes a semiconductor substrate of first conductivity type and including a surface having a doped portion of second conductivity type opposite the first conductivity type. In addition, a dielectric layer on the surface of the substrate extends over a first portion of the doped surface portion and leaves a second portion of the doped surface portion exposed. This dielectric layer includes a low-angle tapered portion having a thickness which increases as said tapered portion extends from the exposed doped surface portion of the substrate. In particular, the low-angle tapered portion of the dielectric layer may extend from the exposed portion of a surface at an angle of less than about 10.degree.. Furthermore, the diode may also include a conductive contact on the exposed portion of the substrate and a field plate extending from the conductive contact over a portion of the dielectric layer.

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Seoul, South Korea

Seong-Dong Kim