摘要:
A semiconductor device includes a trench region extending into a drift zone of a semiconductor body from a surface. The semiconductor device further includes a dielectric structure including a first step and a second step along a lateral side of the trench region. The semiconductor device further includes an auxiliary structure of a first conductivity type between the first step and the second step, a gate electrode in the trench region and a body region of a second conductivity type other than the first conductivity type of the drift zone. The auxiliary structure adjoins each one of the drift zone, the body region and the dielectric structure.
摘要:
Disclosed is a semiconductor component arrangement and a method for producing a semiconductor component arrangement. The method comprises producing a trench transistor structure with at least one trench disposed in the semiconductor body and with at least an gate electrode disposed in the at least one trench. An electrode structure is disposed in at least one further trench and comprises at least one electrode. The at least one trench of the transistor structure and the at least one further trench are produced by common process steps. Furthermore, the at least one electrode of the electrode structure and the gate electrode are produced by common process steps.
摘要:
A semiconductor component with a drift region and a drift control region. One embodiment includes a semiconductor body having a drift region of a first conduction type in the semiconductor body. A drift control region composed of a semiconductor material, which is arranged, at least in sections, is adjacent to the drift region in the semiconductor body. An accumulation dielectric is arranged between the drift region and the drift control region.
摘要:
An anchoring structure for a metal structure of a semiconductor device includes an anchoring recess structure having at least one overhanging side wall, the metal structure being at least partly arranged within the anchoring recess structure.
摘要:
In one embodiment a lateral HEMT has a first layer, the first layer including a semiconducting material, and a second layer, the second layer including a semiconducting material and being at least partially arranged on the first layer. The lateral HEMT further has a passivation layer and a drift region, the drift region including a lateral width wd. The lateral HEMT further has at least one field plate, the at least one field plate being arranged at least partially on the passivation layer in a region of the drift region and including a lateral width wf, wherein wf
摘要:
A semiconductor including a lateral HEMT and to a method for production of a lateral HEMT is disclosed. In one embodiment, the lateral HEMT has a substrate and a first layer, wherein the first layer has a semiconductor material of a first conduction type and is arranged at least partially on the substrate. Furthermore, the lateral HEMT has a second layer, wherein the second layer has a semiconductor material and is arranged at least partially on the first layer. In addition, the lateral HEMT has a third layer, wherein the third layer has a semiconductor material of a second conduction type, which is complementary to the first conduction type, and is arranged at least partially in the first layer.
摘要:
A power semiconductor element having a lightly doped drift and buffer layer is disclosed. One embodiment has, underneath and between deep well regions of a first conductivity type, a lightly doped drift and buffer layer of a second conductivity type. The drift and buffer layer has a minimum vertical extension between a drain contact layer on the adjacent surface of a semiconductor substrate and the bottom of the deepest well region which is at least equal to a minimum lateral distance between the deep well regions. The vertical extension can also be determined such that a total amount of dopant per unit area in the drift and buffer layer is larger then a breakdown charge amount at breakdown voltage.
摘要:
In the case of the semiconductor component (1) according to the invention, the source regions (S), the body regions (B) and, if appropriate, the body contact regions (Bk) are in each case arranged in mesa regions (M) of adjacent trenches (30). In the edge region (R) of the cell array (Z) the insulation (GOX, FOX) of the underlying trench structures (30) by an insulating oxide layer (FOX) is comparatively thick and formed in the form of a field oxide (FOX) or thick oxide (FOX).
摘要:
In order to form a MOS transistor device with a particularly low on resistance with a good avalanche strength at the same time, it is proposed to define the position and/or the configuration of avalanche breakdown regions by a variation and/or a course of the width and/or of the depth of the respective trench structure and/or of the respective mesa regions.
摘要:
A semiconductor component has a minimal size and area requirement. The semiconductor component is formed in a trench with wall regions and a bottom region. Terminal regions for the electrical connection of first and second contact regions (S, B) are formed at least partly within the trench (30).