摘要:
According to an embodiment, a composite wafer includes a carrier substrate having a graphite layer and a monocrystalline semiconductor layer attached to the carrier substrate.
摘要:
According to an embodiment, a composite wafer includes a carrier substrate having a graphite layer and a monocrystalline semiconductor layer attached to the carrier substrate.
摘要:
According to an embodiment, a composite wafer includes a carrier substrate having a graphite core and a monocrystalline semiconductor layer attached to the carrier substrate.
摘要:
According to an embodiment, a composite wafer includes a carrier substrate having a graphite core and a monocrystalline semiconductor layer attached to the carrier substrate.
摘要:
A method for producing a semiconductor including a material layer. In one embodiment a trench is produced having two opposite sidewalls and a bottom, in a semiconductor body. A foreign material layer is produced on a first one of the two sidewalls of the trench. The trench is filled by epitaxially depositing a semiconductor material onto the second one of the two sidewalls and the bottom of the trench.
摘要:
A method for producing a semiconductor including a material layer. In one embodiment a trench is produced having two opposite sidewalls and a bottom, in a semiconductor body. A foreign material layer is produced on a first one of the two sidewalls of the trench. The trench is filled by epitaxially depositing a semiconductor material onto the second one of the two sidewalls and the bottom of the trench.
摘要:
A power semiconductor device has a semiconductor body which includes an active area and a peripheral area which both define a horizontal main surface of the semiconductor body. The semiconductor body further includes an n-type semiconductor layer, a pn junction and at least one trench. The n-type semiconductor layer is embedded in the semiconductor body and extends to the main surface in the peripheral area. The pn junction is arranged between the n-type semiconductor layer and the main surface in the active area. The at least one trench extends in the peripheral area from the main surface into the n-type semiconductor layer and includes a dielectric layer with fixed negative charges. In the vertical direction, the dielectric layer is arranged both below and above the pn junction. The dielectric layer with fixed negative charges typically has a negative net charge. Further, a method for forming a semiconductor device is provided.
摘要:
A power semiconductor device has a semiconductor body which includes an active area and a peripheral area which both define a horizontal main surface of the semiconductor body. The semiconductor body further includes an n-type semiconductor layer, a pn junction and at least one trench. The n-type semiconductor layer is embedded in the semiconductor body and extends to the main surface in the peripheral area. The pn junction is arranged between the n-type semiconductor layer and the main surface in the active area. The at least one trench extends in the peripheral area from the main surface into the n-type semiconductor layer and includes a dielectric layer with fixed negative charges. In the vertical direction, the dielectric layer is arranged both below and above the pn junction. The dielectric layer with fixed negative charges typically has a negative net charge. Further, a method for forming a semiconductor device is provided.
摘要:
A power semiconductor device has a semiconductor body which includes an active area and a peripheral area which both define a horizontal main surface of the semiconductor body. The semiconductor body further includes an n-type semiconductor layer, a pn junction and at least one trench. The n-type semiconductor layer is embedded in the semiconductor body and extends to the main surface in the peripheral area. The pn junction is arranged between the n-type semiconductor layer and the main surface in the active area. The at least one trench extends in the peripheral area from the main surface into the n-type semiconductor layer and includes a dielectric layer with fixed negative charges. In the vertical direction, the dielectric layer is arranged both below and above the pn junction. The dielectric layer with fixed negative charges typically has a negative net charge. Further, a method for forming a semiconductor device is provided.
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.