摘要:
A beam detector and a beam monitor using the same are provided, the beam detector being capable of precisely and stably detecting, for a long period of time, the position, the intensity distribution, and the change with time of radiation beams, soft x-ray beams, and the like and being manufactured at a low cost as compared to that of a conventional detection device.In a beam detector 2 for detecting the position and intensity of beams, a beam irradiation portion 6 to be irradiated with beams 7 is formed of a polycrystalline diamond (C) film 4 containing at least one element (X) selected from the group consisting of silicon (Si), nitrogen (N), lithium (Li), beryllium (Be), boron (B), phosphorus (P), sulfur (S), nickel (Ni), and vanadium (V) at an X/C of 0.1 to 1,000 ppm, and this polycrystalline diamond film 4 has a light emission function of performing light emissions 8 and 8a when it is irradiated with the beams 7. By the beam detector 2 as described above and light emission observation means 3 and 3a for observing the above light emission phenomenon, a beam monitor 1 is formed.
摘要:
A method for manufacturing a multilayered substrate for a semiconductor device, as well as a semiconductor device, is provided, the multilayered substrate exhibiting an excellent thermal conduction property and an excellent heat spreading effect without occurrence of warp and deformation. A diamond layer is formed through vapor phase deposition on one principal surface of a first silicon substrate by a CVD method. A SiO2 layer is formed on this diamond layer. A SiO2 layer is formed on a surface of a second silicon substrate by a thermal oxidation method. The diamond layer is bonded to the second silicon substrate with SiO2 layers disposed on both the diamond layer and the second silicon substrate therebetween. The first silicon substrate is removed by dissolution through etching to expose the surface of the diamond layer. A silicon layer serving as a semiconductor layer is formed on the diamond layer by a CVD method.
摘要:
A highly-oriented diamond film which has a flat surface but does not have non-oriented crystals in the surface can be provided by depositing a first diamond layer on a substrate by {111} sector growth of diamond crystals by a CVD method using a gaseous mixture of methane and hydrogen as material gas, and then depositing a second diamond layer on the first diamond layer by {100} sector growth of diamond crystals by a plasma CVD method using a gaseous mixture of methane, hydrogen, and oxygen as material gas under the conditions that the pressure of the material gas is 133 hPa or more; the material gas composition is determined such that ([C]−[O])/[CH3+H2+O2] is −0.2×10−2 or more and [O]/[C] is 1.2 or less; and the substrate temperature is between 750° C. and 1000° C.
摘要翻译:具有平坦表面但不具有表面未取向晶体的高取向金刚石薄膜可以通过使用气相色谱法(CVD)在金刚石晶体的{111}扇形生长之后,在基底上沉积第一金刚石层来提供 甲烷和氢气的混合物作为材料气体,然后通过使用甲烷,氢气和氧气的气体混合物的等离子体CVD方法通过{100}金刚石晶体的扇形生长在第一金刚石层上沉积第二金刚石层作为原料气体 材料气体压力为133hPa以上的条件; 确定材料气体组成使得([C] - [O])/ [CH 3/3 + H 2 + O 2]是 -0.2×10 -2以上,[O] / [C]为1.2以下。 并且衬底温度在750℃和1000℃之间。
摘要:
A semiconductor device and package has a heat spreader directly disposed on the reverse surface of the semiconductor device. This heat spreader includes a diamond layer or a layer containing diamond and ceramics such as silicon carbide and aluminum nitride. The heat spreader is directly formed on a substrate for the semiconductor device. In particular, the heat spreader is composed of a diamond layer and one or two metal or ceramic members, which are bonded to the diamond layer with one or two polymer adhesive layers. This diamond layer has a fiber structure across the thickness or a microcrystalline structure. Cilia are formed on a surface of the diamond layer facing the one or two metal or ceramic members.
摘要:
A highly-oriented diamond film which has a flat surface but does not have non-oriented crystals in the surface can be provided by depositing a first diamond layer on a substrate by {111} sector growth of diamond crystals by a CVD method using a gaseous mixture of methane and hydrogen as material gas, and then depositing a second diamond layer on the first diamond layer by {100} sector growth of diamond crystals by a plasma CVD method using a gaseous mixture of methane, hydrogen, and oxygen as material gas under the conditions that the pressure of the material gas is 133 hPa or more; the material gas composition is determined such that ([C]−[O])/[CH3+H2+O2] is −0.2×10−2 or more and [O]/[C] is 1.2 or less; and the substrate temperature is between 750° C. and 1000° C.
摘要翻译:具有平坦表面但不具有表面未取向晶体的高取向金刚石薄膜可以通过使用气相色谱法(CVD)在金刚石晶体的{111}扇形生长之后,在基底上沉积第一金刚石层来提供 甲烷和氢气的混合物作为材料气体,然后通过使用甲烷,氢气和氧气的气体混合物的等离子体CVD方法通过{100}金刚石晶体的扇形生长在第一金刚石层上沉积第二金刚石层作为原料气体 材料气体压力为133hPa以上的条件; 确定材料气体组成使得([C] - [O])/ [CH 3/3 + H 2 + O 2]是 -0.2×10 -2以上,[O] / [C]为1.2以下。 并且衬底温度在750℃和1000℃之间。
摘要:
A method for manufacturing a multilayered substrate for a semiconductor device, as well as a semiconductor device, is provided, the multilayered substrate exhibiting an excellent thermal conduction property and an excellent heat spreading effect without occurrence of warp and deformation. A diamond layer is formed through vapor phase deposition on one principal surface of a first silicon substrate by a CVD method. A SiO2 layer is formed on this diamond layer. A SiO2 layer is formed on a surface of a second silicon substrate by a thermal oxidation method. The diamond layer is bonded to the second silicon substrate with SiO2 layers disposed on both the diamond layer and the second silicon substrate therebetween. The first silicon substrate is removed by dissolution through etching to expose the surface of the diamond layer. A silicon layer serving as a semiconductor layer is formed on the diamond layer by a CVD method.
摘要:
An organic LED is provided that can stably and efficiently emit light as a result of a heat resistant hole drift layer. The organic LED can include, in order, a substrate, a hole injection electrode layer, a hole drift layer, an organic light emitting layer, an electron drift layer and an electron injection electrode layer. The hole drift layer comprises a diamond film with a boron concentration of between about 1.0×1019 and about 1.0×1021/cm3. An optically transparent layer can be formed on the electron injection electrode layer.
摘要翻译:提供能够由于耐热孔漂移层而稳定且有效地发光的有机LED。 有机LED可以依次包括基板,空穴注入电极层,空穴漂移层,有机发光层,电子漂移层和电子注入电极层。 孔漂移层包括硼浓度在约1.0×1019至约1.0×10 21 / cm 3之间的金刚石膜。 可以在电子注入电极层上形成光透明层。
摘要:
A magnetic sensor element using highly-oriented diamond film comprises a magnetic detecting part, at least a pair of main current electrodes for flowing a main current and generating the Hall electromotive force at the magnetic detecting part, and detection electrodes for detecting said Hall electromotive force. Said magnetic detecting part is formed of a highly-oriented diamond film grown by chemical vapor deposition, at least 90% of which consists of either (100) or (111) crystal planes. Between the adjacent crystal planes, the differences {.DELTA..alpha., .DELTA..beta., .DELTA..gamma.} of the Euler angles {.alpha., .beta., .gamma.} which represent the orientation of the crystal planes, satisfy the following relations simultaneously: .vertline..DELTA..alpha..vertline..ltoreq.10.degree., .vertline..DELTA..beta..vertline..ltoreq.10.degree. and .vertline..DELTA..gamma..vertline..ltoreq.10 .degree.. The magnetic sensor element using highly-oriented diamond film has a high heat stability and sufficiently high level of magnetic field sensitivity to be used practically, enabling to expand the surface area and to increase the integration of the element and to measure magnetic field over a wide area and a large space.
摘要:
Diamond films and novel method to grow the diamond films can improve the performance of products utilizing diamond films. In the cathodoluminescence taken at room temperature, the integrated intensity ratio of the diamond films, CL.sub.1 /CL.sub.2, is equal or greater than 1/20, where CL.sub.1 is the integrated intensity of the emission band in the wavelength region shorter than 300 nm while CL.sub.2 is the integrated intensity of the emission band in the wavelength region from 300 nm to 800 nm. Such high quality diamond films with intensive coalescence on the surface can be obtained by deposition on the substrates or films, made of at least one member selected from the group consisting of platinum, platinum alloys, iridium, iridium alloys, nickel, nickel alloys, silicon, and metal silicides.
摘要:
A method is presented to manufacture substrates for growing monocrystalline diamond films by chemical vapor deposition (CVD) on large area at low cost. The substrate materials are either Pt or its alloys, which have been subject to a single or multiple cycle of cleaning, roller press, and high temperature annealing processes to make the thickness of the substrate materials to 0.5 mm or less, or most preferably to 0.2 mm or less, so that either (111) crystal surfaces or inclined crystal surfaces with angular deviations within .+-.10 degrees from (111), or both, appear on the entire surfaces or at least part of the surfaces of the substrates. The annealing is carried out at a temperature above 800.degree. C. The present invention will make it possible to markedly improve various characteristics of diamond films, and hence put them into practical use.