HIGH VOLTAGE FINFET STRUCTURE WITH SHAPED DRIFT REGION
    1.
    发明申请
    HIGH VOLTAGE FINFET STRUCTURE WITH SHAPED DRIFT REGION 审中-公开
    具有形状的DRIFT区域的高电压FinFET结构

    公开(公告)号:US20170062609A1

    公开(公告)日:2017-03-02

    申请号:US15351753

    申请日:2016-11-15

    Abstract: Devices and methods for a high voltage FinFET with a shaped drift region include a lateral diffusion metal oxide semiconductor (LDMOS) FinFET having a substrate with a top surface and a fin attached to the top surface. The fin includes a source region having a first type of doping, an undoped gate-control region adjacent the source region, a drift region adjacent the undoped gate-control region opposite the source region, and a drain region. The amount of doping of the source region is greater than the amount of doping in the drift region. The drain region is adjacent to the drift region and has the same type of doping. The fin is tapered in the drift region, being wider closest to the undoped gate-control region and thinner closest to the drain region. A gate stack is attached to the top surface of the substrate and located with the undoped gate-control region.

    Abstract translation: 具有成形漂移区域的高电压FinFET的装置和方法包括具有顶部表面的衬底和附接到顶表面的鳍的横向扩散金属氧化物半导体(LDMOS)FinFET。 散热片包括具有第一类掺杂的源极区域,与源极区域相邻的未掺杂栅极控制区域,与源极区域相对的未掺杂栅极控制区域相邻的漂移区域和漏极区域。 源极区域的掺杂量大于漂移区域中的掺杂量。 漏极区域与漂移区域相邻并且具有相同类型的掺杂。 翅片在漂移区域逐渐变细,最接近未掺杂的栅极控制区域更宽,最靠近漏极区域更薄。 栅极堆叠被附着到衬底的顶表面并且与未掺杂的栅极控制区域一起定位。

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