High voltage semiconductor devices with Schottky diodes
    1.
    发明授权
    High voltage semiconductor devices with Schottky diodes 有权
    具有肖特基二极管的高压半导体器件

    公开(公告)号:US09196723B1

    公开(公告)日:2015-11-24

    申请号:US14564050

    申请日:2014-12-08

    摘要: The present invention provides a semiconductor device structure which integrates a lateral diffused metal oxide semiconductor (LDMOS) with a Schottky diode, including: a substrate, having a first conductivity type, a gate positioned on the substrate, a drain region formed in the substrate, the drain region having a second conductivity type complementary to the first conductivity type, a source region formed in the substrate, the source region having the second conductivity type, a high-voltage well region formed in the substrate, the high-voltage well region having a first conductivity type; a Schottky diode disposed on the substrate and disposed beside the LDMOS, wherein the semiconductor device structure is an asymmetric structure, and a deep well region disposed in the substrate and having the second conductivity type, wherein the LDMOS and the Schottky diode are all formed within the deep well region.

    摘要翻译: 本发明提供了一种将横向扩散金属氧化物半导体(LDMOS)与肖特基二极管集成的半导体器件结构,包括:具有第一导电类型的衬底,位于衬底上的栅极,形成在衬底中的漏极区, 所述漏极区域具有与所述第一导电类型互补的第二导电类型,形成在所述衬底中的源极区域,具有第二导电类型的源极区域,形成在所述衬底中的高压阱区域,所述高压阱区域具有 第一导电类型; 设置在衬底上并设置在LDMOS旁边的肖特基二极管,其中半导体器件结构是不对称结构,以及设置在衬底中并且具有第二导电类型的深阱区,其中LDMOS和肖特基二极管全部形成在 深井区域。