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    • 15. 发明专利
    • Clean room
    • 整理房间
    • JPS6191434A
    • 1986-05-09
    • JP21137684
    • 1984-10-11
    • Hitachi LtdHitachi Plant Eng & Constr Co Ltd
    • SAIKI ATSUSHISUZUKI MICHIOSUNAMI HIDEOASAI SHOJIROMAKI MICHIYOSHIASAMI KINICHIRO
    • F24F7/06F24F3/16F24F7/10
    • F24F7/10F24F3/161
    • PURPOSE:To prevent dust from diffusing from a region where dust is liable to be generated to a region where cleanness should be maintained by providing a difference in the air flow speeds depending on the character of the region so that the blow-off speed of the air flow in a passing region becomes greater than that in a working region. CONSTITUTION:When as a blow-off air flow from a filter 4, the blow-off speed in a working region 6a is made larger than a blow-off air flow speed in a passing region 6b, air on the low air flow side is induced to the high air flow side. Thus, dust is diffused by offsetting to the high air flow speed side, and air on the low speed side has a low dust concentration. Hence, diffusion of dust to the low air flow side cannot almost be observed. As a result, the yield of the product and reliability therefor can be improved.
    • 目的:为了防止灰尘从易于产生灰尘的区域扩散到通过根据该区域的特性提供空气流速的差异来保持清洁度的区域,使得吹扫速度 通过区域中的空气流量变得大于工作区域中的空气流量。 构成:作为来自过滤器4的吹出空气流,工作区域6a中的吹出速度大于通过区域6b中的吹出空气流速,低气流侧的空气为 诱导到高气流侧。 因此,灰尘通过偏移到高空气流速侧而扩散,低速侧的空气的灰尘浓度低。 因此,几乎不能观察到灰尘向低空气流侧的扩散。 结果,可以提高产品的产量和可靠性。
    • 16. 发明专利
    • SEMICONDUCTOR DEVICE AND MANUFACTURE THEREOF
    • JPS57128062A
    • 1982-08-09
    • JP1294381
    • 1981-02-02
    • HITACHI LTD
    • KOBAYASHI YUTAKASUZUKI TAKAYAMAKI MICHIYOSHINAKAMURA MINORU
    • H01L27/08H01L21/20H01L21/86H01L27/12H01L29/78H01L29/786
    • PURPOSE:To obtain the semiconductor device having a high working speed by a method wherein, in the case of an SOS structure semiconductor device, the face direction of an Si single crystal layer is set at{100}or{110}, and the area containing the exposed surface of the single crystal layer consists of the regrown layer whereon tensile stress has been applied. CONSTITUTION:A P type Si single crystal layer 2 is grown in vapor-phase on a sapphire supporting plate 1 with the face direction of the surface of{100} or{110}, and a regrown layer in the state wherein tensile stress is applied by irradiating a laser beam 30 on the Si single crystal layer 2. Then, an Si single crystal 210 is formed by performing a selective etching using a KOH solution, the exposed part is covered by the laminating material consisted of an SiO2 film 201 and an Si polycrystalline layer 202, the section to be used as a gate is remained, and laminating material on the other section is removed. Subsequently, an N type source region 211 and a drain region 212 are formed on the exposed part of an island 210 by performing an ion implantation using a gate as a mask, these regions are covered by an SiO2 film 203, an aperture is opened, source and drain electrodes 204 and 205 are installed, and the gate is enveloped by an SiO2 film 207.