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    • 6. 发明专利
    • PLASMA DEVICE PROVIDED WITH PLASMA EVALUATING DEVICE
    • JPH05315095A
    • 1993-11-26
    • JP11564992
    • 1992-05-08
    • HITACHI SCIENCE SYSTEMS LTD
    • KAWAZOE SHIGEYOSHINONAKA HIROTAKAMUTO HIROSHITAKABORI SAKAE
    • B01J19/08C23F4/00H01L21/302H01L21/3065H05H1/00H05H1/08H05H1/46
    • PURPOSE:To provide a plasma evaluating device of good operability by providing an incident means of light for spectromeasuring an in-plasma substance and a light receiving means of outgoing light from plasma, in a plasma discharge chamber. CONSTITUTION:Parallel plate electrodes 2, 3 are provided in a discharge chamber 1 exhausted to a predetermined vacuum by a vacuumizing device 18. O2 or the like is supplied from a gas inflow port 4, and high frequency voltage is applied to the electrode 2 through a terminal 13 to change the O2 into plasma. The electrode 3 is connected to the earth through a terminal 5. An Si wafer on the electrode 2 is ash formation corrosion engraved by plasma gas. Light of a light source 16 passes through- optical fibers 21, inserted in a strut 9, to outgo from an outgoing end 10, and the light is guided to a spectroscope 20 via a light receiving end 12, strut 11 and fibers 22, spectroanalyzed and recorded. A fiber end is vertically long arranged in the outgoing end 10 and the light receiving end 12, and throttles 25, 26 are respectively provided in the light source 16 and the spectroscope 20, so that vertical lengthwise arrangement of the fiber 22 is partially selected to measure component distribution and concentration distribution of a height position of the plasma. A leakage electromagnetic wave from the periphery of the discharge chamber is shielded by a grounded shield 8.
    • 10. 发明专利
    • Light source for semiconductor lithography
    • 用于半导体光刻的光源
    • JP2014175495A
    • 2014-09-22
    • JP2013047227
    • 2013-03-08
    • Kansai Univ学校法人 関西大学
    • ONISHI MASAMIWAHEED HUGHGLASS
    • H01L21/027H05G2/00H05H1/08
    • PROBLEM TO BE SOLVED: To provide a light source for lithography which allows for generation of high temperature, high density plasma, while recovering debris occurring with development of plasma effectively.SOLUTION: A light source for semiconductor lithography generating light of short wavelength for patterning a circuit on a semiconductor wafer includes a light source body having an outer peripheral wall defining an internal space filled with stannane gas under a state of negative pressure, reverse magnetic field configuration generation means for generating a reverse magnetic field configuration in the internal space, in order to generate plasma via stannane gas in the internal space of the light source body, and debris recovery means for recovering debris occurring by generation of plasma in the internal space of the light source body.
    • 要解决的问题:提供一种用于光刻的光源,其允许产生高温,高密度等离子体,同时有效地回收随着等离子体的发展而发生的碎片。解决方案:用于半导体光刻的光源,其产生短波长的光,用于图案化 半导体晶片上的电路包括在负压状态下具有限定填充有锡烷气体的内部空间的外周壁的光源体,按顺序在内部空间中产生反向磁场结构的反向磁场结构生成装置 以通过光源体的内部空间中的锡烷气体产生等离子体,以及碎片回收装置,用于回收通过在光源体的内部空间中产生等离子体而产生的碎片。