Abstract:
A silicon controlled rectifier (SCR) apparatus is provided. The SCR apparatus includes an SCR structure and a first injection region (8). The SCR structure includes a P+ injection (1), a P well (5), an N well (7) and a first N+ injection region (9), the first N injection region (8) is located under an anode terminal of the P+ injection region (1) of the SCR structure. A method for adjusting a sustaining voltage is provided as well.
Abstract translation:提供了可控硅整流器(SCR)装置。 SCR装置包括SCR结构和第一注入区域(8)。 SCR结构包括P +注入(1),P阱(5),N阱(7)和第一N +注入区(9),第一N注入区(8)位于 P +注入区(1)的SCR结构。 还提供了一种用于调节维持电压的方法。
Abstract:
An insulated gate bipolar transistor (IGBT) is disclosed. The IGBT includes a substrate containing a substrate layer and an epitaxial layer formed on one side of the substrate layer. The IGBT also includes a well region formed in the epitaxial layer, and a gate region formed over a junction between the well region and the epitaxial layer. Further, the IGBT includes a collector drift region formed in the epitaxial layer, and an emitter drift region formed in the well region. The IGBT also includes a collector formed on the collector drift region, an emitter formed on the emitter drift region, and a gate formed on the gate region. The collector, the emitter, and the gate are arranged at a same side of the substrate layer.
Abstract:
A method is disclosed for manufacturing a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET). The method includes providing a substrate containing an epitaxial layer, forming a gate oxide layer and a polysilicon layer on the epitaxial layer, and forming a photoresist layer on the polysilicon layer and a gate region pattern in the photoresist layer. The method also includes forming a gate region by etching the polysilicon layer using the gate region pattern in the photoresist layer as a mask. The etching is performed in such a way that the gate region has a lateral surface receding at a predetermined length relative to the gate region pattern in the photoresist layer. Further, the method includes forming a body region by ion implantation and dopant drive-in using the photoresist layer as a mask such that an overlapping area between the body region and the gate region can be reduced based on the predetermined receding length.
Abstract:
A method is provided for manufacturing a dual-gate oxide semiconductor device. The method includes providing a substrate including a first gate oxide layer region and a second gate oxide layer region, and forming a photoresist pattern of the second gate oxide layer region on a surface of the substrate (S101). The method also includes implanting nitrogen atoms into the first gate oxide layer region by an ion implantation process using the photoresist pattern of the second gate oxide layer region as a mask to form a nitrogen implantation layer (S102). Further, the method includes removing the photoresist pattern on the surface of the substrate to expose the second gate oxide layer region (S103), and forming a first gate oxide layer and a second gate oxide layer on the surface of the substrate at the same time by a single thermal oxidation process (S104). Furthermore, the first gate oxide layer has a first thickness and the second gate oxide layer has a second thickness, which is different from the first thickness.
Abstract:
The LDMOS device includes: a substrate including an epitaxial layer and a well region located in the epitaxial layer; a source region in the well region, and a drain region in the epitaxial layer; a first region and a second region in the surface of the epitaxial layer and having doping states different from a doping state of the epitaxial layer, where the first region and the second region are in a drift region between the source region and the drain region, and have different doping states; a field oxide layer above the first region and the second region; and a gate region on the well region and the field oxide layer. The doping states of the first region and the second region may be adapted to simultaneously raise breakdown voltage and lower on-resistance to reduce power consumption of the device.
Abstract:
A high-voltage MOS device comprising a substrate, which includes a body layer and an epitaxial layer formed on the body layer and being of a first conductivity type. The device also includes a first and a second regions located in the epitaxial layer. The first and second regions have a same doping state, and are of a second conductivity type. The device further includes a gate oxide layer formed on an inner surface of a trench located in the epitaxial layer and between the first and second regions and a gate formed on the gate oxide layer. A bottom of the trench extends into the body layer. The device also includes a first and a second body regions located at sides of the trench, and having a same doping state. The device also includes a first and a second source regions located in the first and second body regions, respectively. The first and second source regions have a same doping state, and are of the first conductivity type.
Abstract:
A method for forming an ultra-shallow junction includes implanting first ions into a semiconductor substrate(101), to form a first implantation region(104); implanting second ions into the first implantation region(104) to amorphize the first implantation region(104); and implanting third ions into the amorphized first implantation region, to form an ultra-shallow junction structure.
Abstract:
A semiconductor device structure and a method for manufacturing the same are provided. The semiconductor device structure includes a semiconductor substrate having a device area and a virtual area, the virtual area being located at an edge of the semiconductor substrate; a first conductive plug and a second conductive plug, wherein the first conductive plug is provided in the virtual area and electrically connected to the substrate; a metal layer disposed in contact with the first and second plugs to provide a conductive path; wherein the first conductive plug, the second conductive plug, and metal layer form an interconnection line structure electrically grounded through a portion of the substrate in the virtual area via the first conductive plug.