摘要:
A semiconductor device includes a gate terminal, at least one control terminal and first and second load terminals and at least one device cell. The at least one device cell includes a MOSFET device having a load path and a control terminal, the control terminal coupled to the gate terminal and a JFET device having a load path and a control terminal, the load path connected in series with the load path of the MOSFET device between the load terminals. The at least one device cell further includes a first coupling transistor having a load path and a control terminal, the load path coupled between the control terminal of the JFET device and one of the source terminal and the gate terminal, and the control terminal coupled to the at least one control terminal of the transistor device.
摘要:
A semiconductor arrangement includes a semiconductor body and a power transistor arranged in a first device region of the semiconductor body. The power transistor includes at least one source region, a drain region, and at least one body region, at least one drift region of a first doping type and at least one compensation region of a second doping complementary to the first doping type, and a gate electrode arranged adjacent to the at least one body region and dielectrically insulated from the body region by a gate dielectric. The semiconductor arrangement also includes a further semiconductor device arranged in a second device region of the semiconductor body. The second device region includes a well-like structure of the second doping type surrounding a first semiconductor region of the first doping type. The further semiconductor device includes device regions arranged in the first semiconductor region.
摘要:
Disclosed is a MOSFET including at least one transistor cell. The at least one transistor cell includes a source region, a drain region, a body region and a drift region. The body region is arranged between the source region and the drift region and the drift region is arranged between the body region and the drain region. The at least one transistor cell further includes a compensation region arranged in the drift region and distant to the body region, a source electrode electrically contacting the source region and the body region, a gate electrode arranged adjacent the body region and dielectrically insulated from the body region by a gate dielectric, and a coupling arrangement including a control terminal. The coupling arrangement is configured to electrically couple the compensation region to at least one of the body region, the source region, the source electrode and the gate electrode dependent on a control signal received at the control terminal.
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 than a breakdown charge amount at breakdown voltage.
摘要:
A semiconductor component is disclosed herein comprising a drift zone and a drift control zone. The drift control zone is arranged adjacent to the drift zone and is dielectrically insulated from the drift zone by a dielectric layer. The drift control zone includes at least one first semiconductor layer and one second semiconductor layer. The first semiconductor layer has a higher charge carrier mobility than the second semiconductor layer.
摘要:
A component arrangement including a MOS transistor having a field electrode is disclosed. One embodiment includes a gate electrode, a drift zone and a field electrode, arranged adjacent to the drift zone and dielectrically insulated from the drift zone by a dielectric layer a charging circuit, having a rectifier element connected between the gate electrode and the field electrode.
摘要:
A semiconductor device has a cell field with drift zones of a first type of conductivity and charge carrier compensation zones of a second type of conductivity complementary to the first type. An edge region which surrounds the cell field has a higher blocking strength than the cell field, the edge region having a near-surface area which is undoped to more weakly doped than the drift zones, and beneath the near-surface area at least one buried, vertically extending complementarily doped zone is positioned.
摘要:
A semiconductor component has a drift zone and a drift control zone, a drift control zone dielectric, which is arranged in sections between the drift zone and the drift control zone, and has a first and a second connection zone, which are doped complementarily with respect to one another and which form a pn junction between the drift control zone and a section of the drift zone.
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:
The fabrication of a semiconductor component having a semiconductor body in which is arranged a very thin dielectric layer having sections which run in the vertical direction and which extend very deeply into the semiconductor body is disclosed. In one method a trench is formed in a drift zone region proceeding from the front side of a semiconductor body, a sacrificial layer is produced on at least a portion of the sidewalls of the trench and at least a portion of the trench is filled with a semiconductor material which is chosen such that the quotient of the net dopant charge of the semiconductor material in the trench and the total area of the sacrificial layer on the sidewalls of the trench between the semiconductor material and the drift zone region is less than the breakdown charge of the semiconductor material, and the sacrificial layer is replaced with a dielectric.