摘要:
Disclosed is a semiconductor radiation detector element of Schottky barrier type, comprising: a compound semiconductor crystal including cadmium and tellurium as main components; and voltage application means for applying voltage to the compound semiconductor crystal. According to the present invention, said voltage application means includes a compound of indium, cadmium and tellurium: InxCdyTez formed on one surface of the compound semiconductor crystal. Preferably, the rate nullznull of occupation of tellurium in the compound InxCdyTez is in the range of not less than 42.9%, but not greater than 50% by ratio of number of atoms. Furthermore, preferably, the rate nullynull of occupation of cadmium in the compound InxCdyTez is in the range of not less than 0%, but not greater than 10% by ratio of number of atoms.
摘要翻译:公开了一种肖特基势垒型半导体辐射检测元件,其特征在于,包括:以镉和碲为主要成分的化合物半导体晶体; 以及用于向化合物半导体晶体施加电压的电压施加装置。 根据本发明,所述电压施加装置包括在化合物半导体晶体的一个表面上形成的铟,镉和碲化合物:In x C y Te Tez。 优选地,化合物InxCdyTez中碲的占据率“z”在原子数之比不小于42.9%但不大于50%的范围内。 此外,化合物InxCdyTez中的镉的占有率优选为y以上,以原子数比计为0%以上10%以下的范围。
摘要:
A Schottky diode is fabricated by a sequence of fabrication by a sequence of fabrication steps. An active region of a semiconductor substrate is defined in which a Schottky diode is fabricated. At least first and second layers of insulating material are applied over the active area. A first layer of insulating material, having a first etching rate, is applied over the active area. A second layer of insulating material having a second, greater, etch rate is applied over the first layer of insulating material to a thickness that is about twice the thickness of the first layer of insulating material. The insulating material is patterned and a window is etched through the layers of insulating material to the semiconductor substrate. Metal is applied and unwanted metal is etched away leaving metal in the window forming a Schottky contact therein. One or more barrier layers may be employed.
摘要:
A buffer layer, an undoped gallium nitride layer, and an n-type gallium nitride active layer are formed on a sapphire substrate. Ohmic contacts and a Schottky contact are then formed on the n-type gallium nitride active layer as a source contact, a drain contact and a gate contact, respectively. The Schottky contact is a copper alloy, such as palladium copper, in which the content by weight of copper is 5%.
摘要:
The present invention provides a Schottky Structure in gallium arsenide (GaAs) semiconductor device, which comprises a gallium arsenide (GaAs) semiconductor substrate, a titanium (Ti) layer on a surface of said gallium arsenide (GaAs) semiconductor substrate to form Schottky contact, a diffusion barrier layer on a surface of said titanium (Ti) layer to block metal diffusion, and a first copper layer on a surface of said diffusion barrier layer.
摘要:
A magnetic random access memory (MRAM) using a schottky diode is disclosed. In order to achieve high integration of the memory device, a word line is formed on a semiconductor substrate without using a connection layer and a stacked structure including an MTJ cell, a semiconductor layer and a bit line is formed on the word line, thereby forming the schottky diode between the MTJ cell and the bit line. As a result, a structure of the device is simplified, and the device may be highly integrated due to repeated stacking.
摘要:
A method for producing a semiconductor component with adjacent Schottky (5) and pn (9) junctions positions in a drift area (2, 10) of a semiconductor material. According to the method, a silicon carbide substrate doped with a first doping material of at least 1018 cmnull3 is provided, and a silicon carbide layer with a second doping material of the same charge carrier type in the range of 1014 and 1017 cmnull3 is homo-epitaxially deposited on the substrate. A third doping material with a complimentary charge carrier is inserted, and structured with the aid of a diffusion and/or ion implantation, on the silicon carbide layer surface that is arranged far from the substrate to form pn junctions. Subsequently the component is subjected to a first temperature treatment between 1400null C. and 1700null C. Following this temperature treatment, a first metal coating is deposited on the implanted surface in order to form a Schottky contact and then a second metal coating is deposited in order to form an ohmic contact. Subsequently the first and second metal coatings are structured as designed.
摘要:
A Schottky rectifier is provided. The Schottky rectifier comprises: (a) a semiconductor region having first and second opposing faces, with the semiconductor region comprising a cathode region of first conductivity type adjacent the first face and a drift region of the first conductivity type adjacent the second face, and with the drift region having a lower net doping concentration than that of the cathode region; (b) one or more trenches extending from the second face into the semiconductor region and defining one or more mesas within the semiconductor region; (c) an insulating region adjacent the semiconductor region in lower portions of the trench; (d) and an anode electrode that is (i) adjacent to and forms a Schottky rectifying contact with the semiconductor at the second face, (ii) adjacent to and forms a Schottky rectifying contact with the semiconductor region within upper portions of the trench and (iii) adjacent to the insulating region within the lower portions of the trench.
摘要:
A semiconductor triode comprises a gate electrode provided on a channel layer, wherein there is interposed an insulating metal oxide layer between a top surface of the channel layer and the gate electrode.
摘要:
A trench Schottky barrier rectifier and a method of making the same are disclosed. The rectifier comprises: (a) A semiconductor region having first and second opposing faces. The semiconductor region comprises a drift region of first conductivity type adjacent the first face and a cathode region of the first conductivity type adjacent the second face. The drift region has a lower net doping concentration than that of the cathode region. (b) A plurality of trenches extending into the semiconductor region from the first face. The trenches define a plurality of mesas within the semiconductor region, and the trenches form a plurality of trench intersections. (c) An oxide layer covering the semiconductor region on bottoms of the trenches and on lower portions of sidewalls of the trenches. (d) A polysilicon region disposed over the oxide layer within the trenches. (e) Insulating regions at the trench intersections that cover a portion of the polysilicon region and a portion of the oxide layer.
摘要:
A monolithic three dimensional memory array comprising Schottky diodes components separated by antifuses is disclosed. The Schottky diodes are vertically oriented and disposed on alternating levels. Those on odd levels are nullrightside-upnull with antifuse over the metal, and those on even levels are nullupside downnull with metal over the antifuse. Both antifuses are preferably grown oxides.