A TVS device and a manufacturing method therefor. The TVS device comprises: a first doping type semiconductor substrate (100); a second doping type deep well I (101), a second doping type deep well II (102), and a first doping type deep well (103) provided on the semiconductor substrate; a second doping type heavily doped region I (104) provided in the second doping type deep well I (101); a first doping type well region (105) and a first doping type heavily doped region I (106) provided in the second doping type deep well II (102); a first doping type heavily doped region II (107) and a second doping type heavily doped region II (108) provided in the first doping type deep well (105); a second doping type heavily doped region III (109) located in the first doping type well region (105) and the second doping type deep well II (102); and a first doping type doped region (110) provided in the first doping type well region (105).

Methods and systems for double-sided semiconductor device fabrication. Devices having multiple leads on each surface can be fabricated using a high-temperature-resistant handle wafer and a medium-temperature-resistant handle wafer. Dopants can be introduced on both sides shortly before a single long high-temperature diffusion step diffuses all dopants to approximately equal depths on both sides. All high-temperature processing occurs with no handle wafer or with a high-temperature handle wafer attached. Once a medium-temperature handle wafer is attached, no high-temperature processing steps occur. High temperatures can be considered to be those which can result in damage to the device in the presence of aluminum-based metallizations.

A vertical transistor includes a gate structure interposed between a proximate spacer doped with a first dopant-type and a distal spacer doped with the first dopant-type. The proximate spacer is formed on an upper surface of a semiconductor substrate. At least one channel region extends vertically from the proximate doping source layer to the distal doping source layer. A proximate S/D extension region is adjacent the proximate spacer and a distal S/D extension region is adjacent the distal spacer. The proximate and distal S/D extension regions include dopants that match the first dopant-type of the proximate and distal doping sources.

Methods of doping semiconductor substrates using deposition of a rare earth metal-containing film such as an yttrium-containing film, and annealing techniques are provided herein. Rare earth metal-containing films are deposited using gas, liquid, or solid precursors without a bias and may be deposited conformally. Some embodiments may involve deposition using a plasma. Substrates may be annealed at temperatures less than about 500° C.

A method for the selective formation of epitaxial layers is described herein. In the method, epitaxial layers are deposited to form source and drain regions around a horizontal gate all around (hGAA structure). The method includes co-flowing a combination of chlorinated silicon containing precursors, antimony containing precursors, and n-type dopant precursors. The resulting source and drain regions are selectively grown from crystalline nanosheets or nanowires of the hGAA structure over the non-crystalline gate structure and dielectric layers. The source and drain regions are predominantly grown in a <110> direction.

There are provided a semiconductor device, a method of manufacturing the same, and an electronic device including the device. According to an embodiment, the semiconductor device may include a substrate, and a first device and a second device formed on the substrate. Each of the first device and the second device includes a first source/drain layer, a channel layer and a second source/drain layer stacked on the substrate in sequence, and also a gate stack surrounding a periphery of the channel layer. The channel layer of the first device and the channel layer of the second device are substantially co-planar with each other, and the respective second source/drain layers of the first device and the second device are stressed differently.

The present application provides a detection method of metal impurity in wafer. The method comprises conducting a medium temperature thermal treatment for a first predicted time period to the wafer, cooling the wafer and conducting a low temperature thermal treatment for a second predicted time period, cooling the wafer to ambient temperature; providing a liquid of vapor phase decomposition on the wafer to collect metal impurities; atomizing the liquid containing the collected metal impurities, conducting an inductively coupled plasma mass spectrometry analysis and obtaining concentrations of the metal impurities. The present application applies the combination of various thermal treatment without an interrupt of cooling to ambient temperature to contemplate diffusions of various metal impurities to the wafer surface. Accordingly, the detection of metal impurities can be conducted with reduced time cost and enhanced efficiency.

A method for manufacturing and a Super Junction MOSFET are disclosed. The Super Junction MOSFET comprises a lightly doped epitaxial layer of a first conductivity type on a heavily doped substrate of the first conductivity type. A deep trench is formed in the epitaxial layer. The deep trench having an insulating layer with a thickness gradient formed on surfaces of the deep trench. One or more regions of the epitaxial layer proximate to sidewalls of the deep trench is doped of a second conductivity type, wherein the second conductivity type is opposite the first conductivity type. Finally, MOSFET device structures are formed in the epitaxial layer.

A semiconductor device includes: a semiconductor substrate; a semiconductor layer of a first conductivity type that is deposited on a surface of the semiconductor substrate; a trench that is formed on a surface of the semiconductor layer; an insulating film that covers a bottom surface of the trench and a lateral surface of the trench; a conductive body that fills inside the trench that is covered by the insulating film; a second conductive type region that is formed in the semiconductor layer, is arranged under the trench, and is within a region of the trench in a plan view of the semiconductor substrate; and a metal film that is electrically connected to the conductive body and forms a Schottky barrier with the surface of the semiconductor layer.

A vertical storage device, a method of manufacturing the same, and an electronic apparatus including the storage device are provided. The storage device includes: a first source/drain layer located at a first height with respect to a substrate and a second source/drain layer located at a second height different from the first height; a channel layer connecting the first source/drain layer and the second source/drain layer; and a gate stack including a storage function layer, the storage function layer extending on a sidewall of the channel layer and extending in-plane from the sidewall of the channel layer onto a sidewall of the first source/drain layer and a sidewall of the second source/drain layer.