Jiangsu University

Csmc Technologies Fab2 Co., Ltd.

Yu Huang

Yong Wang

Ming Li

Qiang Xu

Houlin Liu

Feng Lin

Ruibin Cao

Xiang Qin

Chunxu Li

Qin Pi

Zhiyao Ding

Yu Hu

A semiconductor device and a manufacturing method therefor are disclosed. The method includes: providing a substrate of a first conductivity type; forming doped regions of a second conductivity type in the substrate, the doped regions including adjacent first and second drift regions, wherein the second conductivity type is opposite to the first conductivity type; forming a polysilicon film on the substrate, the polysilicon film covering the doped regions; forming patterned photoresist on the polysilicon film, which covers the first and second drift regions, and in which the polysilicon film above a reserved region for a body region between the first and second drift regions is exposed; and forming the body region of the first conductivity type in the reserved region by performing a high-energy ion implantation process, the body region having a top surface that is flush with top surfaces of the doped regions, the body region having a bottom surface that is not higher than bottom surfaces of the doped regions. The problem of morphological changes possibly experienced by the photoresist due to a high temperature in an etching process, which may lead to an impaired effect of the high-energy ion implantation process, can be circumvented.

Semiconductor device and manufacturing method therefor

The present disclosure provides a two-stage cavitation generator for organic wastewater treatment, including a shrouded impeller, a stator, and a rotor. The shrouded impeller includes a front cover plate, blades, and a rear cover plate. Several blades are evenly distributed between the front cover plate and the rear cover plate. A working surface of the blade is an arc surface, and a back of the blade protrudes locally, so that a flow channel between the back of the blade and a working surface of its adjacent blade is narrowed locally, forming a throat structure. An outlet of the shrouded impeller is provided with the stator and the rotor, and the stator is located at an outer edge of the front cover plate and fixed on an inner wall of a volute. The rotor is mounted on the rear cover plate.

Two-stage cavitation generator for organic wastewater treatment

Growing community of inventors

Jiangsu, China

Yu Huang