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    • 1. 发明专利
    • Method and apparatus for cleaning tool with ultraviolet provided internally
    • 用于内部提供超紫外线清洁工具的方法和装置
    • JP2006229198A
    • 2006-08-31
    • JP2005363934
    • 2005-12-16
    • Asahi Glass Co LtdSematech Incセマテック インコーポレテッドSEMATECH, Inc.旭硝子株式会社
    • IKUTA YORISUKERASTEGAR ABBAS
    • H01L21/304B08B3/02B08B7/00H01L21/027
    • B08B3/10B05D3/062B08B7/0057H01L21/67051H01L21/67115
    • PROBLEM TO BE SOLVED: To provide an apparatus and a method for removing particles equal to or less than 100 nm in size from the surface including a silicon wafer, a photomask substrate, photomask blanks, etc.
      SOLUTION: The ultraviolet cleaning tool has an ultraviolet source arranged in a processing chamber, which can be located above a surface 104 and used during various processing in the processing chamber. The distance between the surface 104 of a glass substrate, a glass surface, a silicon substrate, a plate, a photomask substrate, etc., and the ultraviolet source 102 can be adjusted by moving a rotary chuck 106 using a motor 110. Alternatively, the distance can also be adjusted by moving the ultraviolet source 102 vertically. The ultraviolet source 102 has a wavelength of about 140 to 400 nm and its intensity is equal to or greater than 1 mV/cm
      2 , and a high or a low pressure mercury lamp, etc., is used. The ultraviolet source 102 causes ozone that breaks the chemical bond between the particles and the surface 104 to occur, improving the cleaning performance.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种从包括硅晶片,光掩模基板,光掩模坯料等的表面去除等于或小于100nm的颗粒的装置和方法。解决方案: 紫外线清洁工具具有布置在处理室中的紫外线源,该处理室可以位于表面104的上方,并且在处理室中的各种处理期间使用。 可以通过使用马达110移动旋转卡盘106来调整玻璃基板的表面104,玻璃表面,硅基板,板,光掩模基板等之间的距离和紫外线源102。 也可以通过垂直移动紫外线源102来调节距离。 紫外线源102具有约140至400nm的波长,其强度等于或大于1mV / cm 2,使用高压或低压汞灯等 。 紫外线源102引起破坏颗粒与表面104之间的化学键的臭氧,从而提高清洁性能。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Forming silicon@ wafers by spin-casting on rotating table - by forming melt of polycrystalline silicon@ granules and recrystallising using embedded seed-crystal
    • DE4200283A1
    • 1992-07-09
    • DE4200283
    • 1992-01-08
    • SEMATECH INC
    • GEYLING FRANZ T
    • C30B1/02C30B11/00H01L21/208H01L21/268
    • A melt container (12), pref. made of quartz and formed in a U-shape, filled with molten Si (17) above which a container (11) for granular polycrystallne Si (14) is placed to replenish the melt. The melt container is heated (13) to form the melt (17) and maintain its temp. (19) near the opening (25), from which it is poured to form Si wafers. The exit opening (25) is pref at the opposite end of the container from the filler opening (11). The granules container (11) is pref. a drum, pref. made of quartz, which can be rotated and contains a slit opening (15) through which it can be filled and emptied when the drum is in an appropriate position. A friction-less coating is used between the drum and the filler-opening of the melt container to provide a hermetic seal and allow easy rotation of the drum. A gas-inlet opening (24) allows an inert gas ambient to be used to force the melt out of the opening (25) to pour the wafers. The process consists of forming a melt, which is held inside the container by the pressure of the ambient gas, and pouring it onto a spinning plate (30). A method for recrystallisation is also claimed. USE/ADVANTAGE - Faster formation of single crystalline Si wafers compared with the conventional Czochralski crystal bar pulling. Avoids lengthy wafer-cutting process currently used. The method allows very much purer polycrystalline Si to be used and causes much less contamination since it is used quickly as it is poured into the melt container. The recrsytallistion has been modified to minimise contamination of the wafers. Avoidance of wafer sawing also reduces Si waste.