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    • 3. 发明申请
    • PROCESS FOR PREPARING SEMICONDUCTOR MONOCRYSTALLINE THIN FILM
    • 制备半导体单晶薄膜的方法
    • WO1997032060A1
    • 1997-09-04
    • PCT/JP1997000619
    • 1997-02-28
    • SHIN-ETSU HANDOTAI CO., LTD.HABUKA, Hitoshi
    • SHIN-ETSU HANDOTAI CO., LTD.
    • C30B25/16
    • C30B29/06C30B25/16C30B25/18H01L21/02381H01L21/02532H01L21/0262
    • A process for preparing a semiconductor monocrystalline thin film by feeding a reducing gas onto the surface of a semiconductor monocrystalline substrate to pretreat the substrate for removing an oxide film from the surface of the substrate, and then feeding a reaction gas onto the surface of the substrate to effect vapor growth, wherein the P2 to P1 ratio, wherein P1 represents the atmospheric pressure in the reactor in the step of pretreatment and P2 represents the maximum atmospheric pressure in the reactor which reaches in a period between the completion of the step of pretreatment and the initiation of the step of vapor growth, is brought to at least 10. For example, when a silicon monocrystalline thin film is grown on a silicon monocrystalline substrate, P1 is brought to 0.1 atm (absolute pressure), while P2 is brought to 1 atm (absolute pressure). This enables the production of an epitaxial growth substrate by vapor growth, wherein the dopant concentration is steeply varied in the interface between the substrate and the thin film.
    • 一种制备半导体单晶薄膜的方法,该方法是将还原气体送到半导体单晶衬底的表面上,以预处理衬底以从衬底的表面去除一氧化膜,然后将反应气体送至衬底的表面上 以实现气相生长,其中P2至P1的比率,其中P1表示在预处理步骤中反应器中的大气压,P2表示反应器中在预处理步骤完成和完成步骤之间的时间段内的最大大气压 气化生长步骤的开始至少为10.例如,当在单晶硅衬底上生长硅单晶薄膜时,使P1达到0.1atm(绝对压力),而P2达到1 atm(绝对压力)。 这使得能够通过气相生长生产外延生长衬底,其中掺杂剂浓度在衬底和薄膜之间的界面中急剧变化。
    • 5. 发明申请
    • HEAT-TREATING METHOD AND RADIANT HEATING DEVICE
    • 热处理方法和辐射加热装置
    • WO1997034318A1
    • 1997-09-18
    • PCT/JP1997000734
    • 1997-03-10
    • SHIN-ETSU HANDOTAI CO., LTD.TATE, NaotoSAKAI, TomoyukiTODA, NaohisaHABUKA, Hitoshi
    • SHIN-ETSU HANDOTAI CO., LTD.
    • H01L21/205
    • H01L21/67248C30B31/18H01L21/324H01L21/67115H01L22/26
    • A heat-treating method and a radiant heating device by which an object to be heat-treated can be heat-treated after the object is heated to an actually desired temperature regardless of the dopant concentration or resistivity of the object at the time of heat-treating the object with a radiant heating device using a radiation thermometer as a temperature detector. In this method, the object is heat-treated after the object is heated to the actually desired temperature by correcting the temperature of the object in accordance with the dopant concentration or resistivity of the object. In addition, the radiant heating device is constituted in such a way that the dopant concentration or resistivity of the object is inputted in advance to a temperature controller and the controller calculates the actual temperature of the object by correcting and computing the temperature of the object detected with the above-mentioned radiation thermometer in accordance with the dopant concentration or resistivity of the object and controls the temperature of the object based on the calculated temperature value.
    • 不管加热时的物体的掺杂剂浓度或电阻率如何,热处理方法和辐射加热装置可以在物体被加热到实际所需温度之后对其进行热处理的热处理对象。 使用辐射温度计作为温度检测器用辐射加热装置处理物体。 在该方法中,通过根据物体的掺杂剂浓度或电阻率校正物体的温度,在物体被加热到实际所需温度之后对物体进行热处理。 此外,辐射加热装置以使得物体的掺杂剂浓度或电阻率预先输入到温度控制器的方式构成,并且控制器通过校正和计算检测到的物体的温度来计算物体的实际温度 与上述辐射温度计根据物体的掺杂剂浓度或电阻率,并基于计算出的温度值来控制物体的温度。
    • 8. 发明申请
    • SINGLE CRYSTAL PRODUCTION APPARATUS AND PROCESS
    • 单晶生产设备和工艺
    • WO1997021853A1
    • 1997-06-19
    • PCT/JP1995002514
    • 1995-12-08
    • SHIN-ETSU HANDOTAI CO., LTD.OHTA, TomohikoSONOKAWA, SusumuSOETA, SatoshiKODAMA, Yoshihiro
    • SHIN-ETSU HANDOTAI CO., LTD.
    • C30B15/00
    • C30B29/40C30B15/14C30B15/206C30B29/06Y10T117/1064Y10T117/1068Y10T117/1072Y10T117/1088
    • An apparatus and process for producing single crystals according to the Czochralski method for pulling up crystals, wherein the production efficiency and qualities of the crystals can be improved by freely controlling the temperature distribution and heat history of the crystals to be pulled up. The invention relates to a production apparatus according to the Czochralski method provided with a cylinder (19) that is airtightly joined to the ceiling of a lift chamber at the upper end thereof and is closed up to the surface of a melt in a crucible at the lower end thereof and that surrounds coaxially the pulled single crystal bar, and is characterized in that the lower end of the cylinder is provided with a heat-barrier body (25) occupying 30-95 vol.% of the space that is enclosed by the crystal surface, the inner wall of a quartz crucible and the surface of a melt and has a height corresponding to the radius of the crystal to be pulled up from the melt; a process for producing single crystals with the use of the above apparatus; a method of controlling the temperature distribution and heat history of the crystals thus pulled up; and single crystals thus produced. As the apparatus is provided with a heat-barrier body (25) having a sufficient barrier effect, it does not cause any lowering in the velocity of pulling even when the diameter of the pulled single crystal is increased, can uniform the temperature at the whole solid-liquid boundary, does not lower the convention into singl crystals, and can control readily and accurately the temperature distribution and heat history of the crystals to be pulled up.
    • 用于提取晶体的根据Czochralski法制造单晶的装置和方法,其中可以通过自由地控制要拉起的晶体的温度分布和热历史来提高晶体的生产效率和质量。 本发明涉及一种根据切克劳斯基法的生产设备,其具有气缸(19),该气缸(19)在其上端处气密地接合到提升室的天花板上,并在坩埚内的熔体表面封闭 其下端并且同轴地围绕拉出的单晶棒,并且其特征在于,圆筒的下端设置有占据30-95体积%的空间的隔热体(25),该隔热体 晶体表面,石英坩埚的内壁和熔体的表面,并且具有与从熔体拉起的晶体的半径相对应的高度; 使用上述装置制造单晶的方法; 控制由此提升的晶体的温度分布和热历史的方法; 和由此产生的单晶。 由于该装置设置有具有足够的阻挡效果的隔热体(25),所以即使拉伸的单晶的直径增加也不会引起拉伸速度的任何降低,整体温度可以均匀 固液边界,不能将惯例降低为单晶,并且可以容易地和准确地控制要拉起的晶体的温度分布和热历史。