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    • 6. 发明授权
    • Film-forming method for X-ray mask
    • X射线掩模成膜方法
    • US5879840A
    • 1999-03-09
    • US904185
    • 1997-08-01
    • Hideki YabeKaeko KitamuraMasao KouhashiMasamitsu OkamuraKei Sasaki
    • Hideki YabeKaeko KitamuraMasao KouhashiMasamitsu OkamuraKei Sasaki
    • C23C14/50C23C14/54G03F1/22H01L21/027G03F9/00
    • G03F1/22C23C14/505C23C14/545
    • A film-forming method and an apparatus for a X-ray mask and a film-forming apparatus which are able to diminish stress unevenness in the X-ray mask to zero when a X-ray absorber is formed on a mask substrate by sputtering a target 3 during rotation of the mask substrate. Firstly, a dummy mask substrate is prepared instead of a mask substrate. A dummy X-ray absorber 6 is formed on this dummy X-ray substrate 5 within a sputtering range. Secondly, a stress distribution is measured at every position along a straight line passing through a center of the dummy X-ray absorber 6 and then a desirable stress distribution range X is selected at such a location so as to have a good linear characteristic in a portion of a compressive stress curve which decreases toward an outer periphery of the dummy X-ray absorber 6 in the stress distribution. A center of the desirable stress distribution range X is selected as a rotation center, the mask substrate is placed within the desirable stress distribution range X, and the X-ray absorber is formed by this film-forming technology.
    • 当通过溅射在掩模基板上形成X射线吸收体时,能够将X射线掩模中的应力不均匀性降低到零的X射线掩模和成膜装置的成膜方法和装置 在掩模基板旋转期间的目标3。 首先,准备虚设掩模基板来代替掩模基板。 在该虚拟X射线基板5上,在溅射范围内形成虚拟X射线吸收体6。 其次,在通过虚拟X射线吸收体6的中心的直线的每个位置处测量应力分布,然后在这样的位置选择期望的应力分布范围X,使得在 在应力分布中朝向虚拟X射线吸收体6的外周减小的压缩应力曲线的一部分。 选择期望的应力分布范围X的中心作为旋转中心,将掩模基板置于期望的应力分布范围X内,并且通过该成膜技术形成X射线吸收体。
    • 9. 发明授权
    • X-ray mask
    • X光掩模
    • US06898267B2
    • 2005-05-24
    • US10282208
    • 2002-10-29
    • Hiroshi WatanabeKouji KiseHideki Yabe
    • Hiroshi WatanabeKouji KiseHideki Yabe
    • G03F1/22G03F1/68G03F7/20H01L21/027G21K5/00
    • G03F1/20G03F1/22G03F1/29G03F1/32
    • In an x-ray absorber in accordance with the present invention, reduced transmittance of the x-ray absorber is suppressed while phase shift amount in the vicinity of π-radians is achieved. For this purpose, a material is used that has a high transmittance per film thickness and contains an element with a high phase shift amount and an element with a low transmittance, as a material composition that forms the x-ray absorber. In other words, the transmittance of the x-ray absorber is mainly determined by the element with a low transmittance, and phase shift falling short of π-radians is compensated with the element with a high transmittance and a high phase shift.
    • 在根据本发明的x射线吸收器中,抑制了x射线吸收体的透射率降低,同时实现了π弧度附近的相移量。 为此目的,使用材料,其作为形成x射线吸收体的材料组合物,每个膜厚度具有高透射率并且含有高相移量的元素和具有低透射率的元素。 换句话说,x射线吸收体的透射率主要由具有低透射率的元素决定,并且具有高透射率和高相移的元素补偿了低于π弧度的相移。