摘要:
A film formation apparatus is configured to epitaxially grow a film on a surface of a substrate, and the film formation apparatus may include: a stage configured to allow the substrate to be mounted thereon; a heater configured to heat the substrate; a mist supply source configured to supply mist of a solution that comprises a solvent and a material of the film dissolved in the solvent; a heated-gas supply source configured to supply heated gas that comprises gas constituted of a same material as a material of the solvent and has a higher temperature than the mist; and a delivery device configured to deliver the mist and the heated gas to the surface of the substrate.
摘要:
There is known a semiconductor device in which an IGBT structure is provided in an IGBT area and a diode structure is provided in a diode area, the IGBT area and the diode area are both located within a same substrate, and the IGBT area is adjacent to the diode area. In this type of semiconductor device, a phenomenon that carriers accumulated within the IGBT area flow into the diode area when the IGBT structure is turned off. In order to prevent this phenomenon, a region of shortening lifetime of carriers is provided at least in a sub-area that is within said IGBT area and adjacent to said diode area. In the sub-area, emitter of IGBT structure is omitted.
摘要:
Provided is a semiconductor device including a semiconductor substrate in which a diode region and an IGBT region are formed. A separation region formed of a p-type semiconductor is formed in a range between the diode region and the IGBT region and extending from an upper surface of the semiconductor substrate to a position deeper than both a lower end of an anode region and a lower end of a body region. A diode lifetime control region is formed within a diode drift region. A carrier lifetime in the diode lifetime control region is shorter than that in the diode drift region outside the diode lifetime control region. An end of the diode lifetime control region on an IGBT region side is located right below the separation region.
摘要:
The semiconductor apparatus is disclosed that includes a partial SOI substrate including an oxide film; a lateral first MOSFET section having a planar gate structure and formed in the portion of the partial SOI substrate where there is an oxide film; a vertical second MOSFET section having a trench gate structure and formed in the portion of the partial SOI substrate where there is no oxide film, the second MOSFET section being adjacent to the first MOSFET section. The first MOSFET section includes a first p-type base region on the oxide film. The second MOSFET section includes a second n+-type drain region, a second n-type drift region on the second n+-type drain region, and a second p-type base region in the surface portion of the second n-type drift region. The height H1 of the pn-junction between the second n-type drift region and the second p-type base region from the second n+-type drain region is set to be lower than the height H2 of the boundary between the oxide film and the first p-type base region from the second n+-type drain region to make the oxide film serve as a field plate. The semiconductor apparatus including a vertical device and a lateral device configured as described above facilitates doping the second n-type drift region heavily while securing a certain breakdown voltage, reducing the ON-resistance of the second MOSFET section, and reducing the semiconductor chip size.
摘要:
A security system 63 and an electronic device group 62 to be stored in a home network 6 are controlled by a home server 61. A home network management facility 5 obtains status information of the electronic device group 62 from home server 61. Home network management facility 5 displays the status of electronic device group 62 on a display unit of a terminal 1 based on the received status information. Home network management facility 5 also displays a screen for prompting input of a control instruction of the home-located electronic devices that are included in the electronic device group 62. Based on control instruction received via home server 61, home network management facility 5 performs remote control of electronic device group 62.
摘要:
A semiconductor device facilitates obtaining a higher breakdown voltage in the portion of the semiconductor chip around the drain drift region and improving the avalanche withstanding capability thereof. A vertical MOSFET according to the invention includes a drain layer; a drain drift region on drain layer, drain drift region including a first alternating conductivity type layer; a breakdown withstanding region (the peripheral region of the semiconductor chip) on drain layer and around drain drift region, breakdown withstanding region providing substantially no current path in the ON-state of the MOSFET, breakdown withstanding region being depleted in the OFF-state of the MOSFET, breakdown withstanding region including a second alternating conductivity type layer, and an under region below a gate pad, and the under region including a third alternating conductivity type layer.
摘要:
Disclosed is a semiconductor device facilitating a peripheral portion thereof with a breakdown voltage higher than the breakdown voltage in the drain drift layer without employing a guard ring or field plate. A preferred embodiment includes a drain drift region with a first alternating conductivity type layer formed of n drift current path regions and p partition regions arranged alternately with each other, and a breakdown withstanding region with a second alternating conductivity type layer formed of n regions and p regions arranged alternately with each other, the breakdown withstanding region providing no current path in the ON-state of the device and being depleted in the OFF-state of the device. Since depletion layers expand in both directions from multiple pn-junctions into n regions and p regions in the OFF-state of the device, the adjacent areas of p-type base regions, the outer area of the semiconductor chip and the deep area of the semiconductor chip are depleted. Thus, the breakdown voltage of breakdown withstanding region is higher than the breakdown voltage of drain drift region.
摘要:
To provide a super-junction MOSFET reducing the tradeoff relation between the on-resistance and the breakdown voltage greatly and having a peripheral structure, which facilitates reducing the leakage current in the OFF-state thereof and stabilizing the breakdown voltage thereof. The vertical MOSFET according to the invention includes a drain drift region including a first alternating conductivity type layer; a breakdown withstanding region (peripheral region) including a second alternating conductivity type layer around drain drift region, second alternating conductivity type layer being formed of layer-shaped vertically-extending n-type regions and layer-shaped vertically-extending p-type regions laminated alternately; an n-type region around second alternating conductivity type layer; and a p-type region formed in the surface portion of n-type region to reduce the leakage current in the OFF-state of the MOSFET.
摘要:
A method of forming a gallium oxide film is provided, and the method may include supplying mist of a material solution comprising gallium atoms and chlorine atoms to a surface of a substrate while heating the substrate so as to form the gallium oxide film on the surface of the substrate, in which a molar concentration of chlorine in the material solution is equal to or more than 3.0 times and equal to or less than 4.5 times a molar concentration of gallium in the material solution.
摘要:
A film formation apparatus is configured to epitaxially grow a film on a surface of a substrate, and the film formation apparatus may include: a stage configured to allow the substrate to be mounted thereon; a heater configured to heat the substrate; a mist supply source configured to supply mist of a solution that comprises a solvent and a material of the film dissolved in the solvent; a heated-gas supply source configured to supply heated gas that comprises gas constituted of a same material as a material of the solvent and has a higher temperature than the mist; and a delivery device configured to deliver the mist and the heated gas to the surface of the substrate.