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    • 7. 发明申请
    • Film Forming Apparatus, Matching Device, and Impedance Control Method
    • 成膜装置,匹配装置和阻抗控制方法
    • US20090188430A1
    • 2009-07-30
    • US11883580
    • 2006-01-24
    • Satoshi MatsudaYuji AsaharaHideo YamakoshiSeiji Goto
    • Satoshi MatsudaYuji AsaharaHideo YamakoshiSeiji Goto
    • B05C11/00
    • H05H1/46C23C16/26C23C16/52H05H2001/4682
    • The present invention realizes an impedance control for avoiding the extinction of a plasma caused due to a sudden change in a load impedance, which may occur immediately after the plasma is generated. A film-forming apparatus of the present invention includes a power supply; a matching circuit; an electrode configured to receive electric power from the power supply through the matching circuit, and to generate a plasma inside a film forming chamber for accommodating a film forming target based on the electric power; and a control section configured to control an impedance of the matching circuit. The control section keeps the impedance of the matching circuit constant during a first period starting at a first time t1 when the power supply starts to supply the electric power to the electrode, and controls the impedance of the matching circuit based on a reflected-wave power from the electrode for a second period starting at a second time t2 when the first period ends.
    • 本发明实现了一种阻抗控制,用于避免在等离子体产生后立即发生的负载阻抗突然变化引起的等离子体消光。 本发明的成膜装置包括:电源; 匹配电路; 电极,被配置为通过匹配电路从电源接收电力,并且在用于基于电力容纳成膜靶的成膜室内产生等离子体; 以及控制部,被配置为控制所述匹配电路的阻抗。 控制部在电源开始向电极供给电力时,在从第一时刻t1开始的第一期间保持匹配电路的阻抗恒定,并且基于反射波功率来控制匹配电路的阻抗 从第一时段结束时的第二时刻t2开始的第二期间。
    • 9. 发明申请
    • Optical properties restoration apparatus, the restoration method, and an optical system used in the apparatus
    • 光学性能恢复装置,恢复方法以及该装置中使用的光学系统
    • US20050242379A1
    • 2005-11-03
    • US10833998
    • 2004-04-29
    • Satoshi SakaiShigenori TsurugaHideo YamakoshiShizuma KuribayashiMinoru DannoHiroshi FutamiNoriko Yamazaki
    • Satoshi SakaiShigenori TsurugaHideo YamakoshiShizuma KuribayashiMinoru DannoHiroshi FutamiNoriko Yamazaki
    • B08B7/00B08B17/00G02B27/00H01L29/76
    • G02B27/0006B08B7/0035B08B17/00G02B1/14
    • The objectives of the present invention are to prevent or inhibit the deterioration of optical systems that determine the longevity of an optical apparatus which delivers effects such as light transmission, diffraction, reflection, spectrum generation, and interference, and these combinations, and by so doing, decrease the frequency of maintenance operations such as window replacement and to reduce the costs for such operations. This invention is characterized by steps of creating a near vacuum zone with a presence of active energy to excite an oxidation reaction of carbon wherein the near vacuum zone faces the lighting surfaces of the optical system; generating negative ions or radicals in the near vacuum zone such as unstable chemical seeds containing oxygen atoms, such as OH radicals, OH− ions, ozone, O2− ions, O-radicals; and removing or reducing the accumulated carbon which deposits on the lighting surface, by reacting the deposited carbon with the negative ions or radicals. More specifically, the method according to this invention is characterized by the step of supplying active energy while supplying a flow of gases containing oxygen atoms such as water gas or oxidizing gas (for example, water vapor, oxygen, hydrogen peroxide, ozone or mixtures of said gases with inactive gases (including air)) into the near vacuum zone, thereby removing or reducing the accumulated carbon which deposits on the lighting surface by exciting the oxidation reaction of the accumulated carbon with the supplied active energy.
    • 本发明的目的是防止或抑制光学系统的劣化,这些光学系统确定了传递诸如光透射,衍射,反射,光谱产生和干扰的效果的光学装置的寿命,以及这些组合。 ,减少窗户更换等维护操作的频率,降低这种操作的成本。 本发明的特征在于产生具有活性能量的近真空区以激发碳的氧化反应的步骤,其中近真空区面向光学系统的照明表面; 在近真空区域产生负离子或自由基,例如含有氧原子的不稳定的化学种子,例如OH基,OH - ,O 2 - , - O - 离子,O-自由基; 以及通过使沉积的碳与负离子或自由基反应来除去或减少沉积在照明表面上的积累的碳。 更具体地说,根据本发明的方法的特征在于,在供给含有氧原子的气体流(例如水气或氧化气体(例如水蒸气,氧气,过氧化氢,臭氧或混合气体 所述具有惰性气体(包括空气)的气体)进入近真空区域,从而通过激发累积的碳与所提供的活性能的氧化反应去除或减少沉积在照明表面上的积聚的碳。