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热词
    • 8. 发明授权
    • Photomask and method of manufacturing a photomask
    • 光掩模和制造光掩模的方法
    • US5290647A
    • 1994-03-01
    • US597373
    • 1990-10-10
    • Junji MiyazakiHitoshi Nagata
    • Junji MiyazakiHitoshi Nagata
    • G03F1/29G03F9/00
    • G03F1/29
    • A photomask includes a transparent substrate, a predetermined pattern of a light blocking member disposed on the transparent substrate, and a phase member formed along a peripheral edge of the light blocking member and exposed by a predetermined width. The photomask manufacturing method includes forming a transparent film on a surface of a transparent substrate, forming a predetermined pattern of a light blocking member on the transparent film, forming an etching mask layer on the transparent film and light blocking member, anisotropically etching the etching mask layer to leave the etching mask layer on the transparent film and along a peripheral edge of the light blocking member, and selectively etching the transparent film with the light blocking member and the remaining etching mask layer as a mask to form a phase member of the transparent film along the peripheral edge of the light blocking member.
    • 光掩模包括透明基板,设置在透明基板上的遮光构件的预定图案,以及沿着遮光构件的周缘形成并以预定宽度曝光的相位构件。 光掩模制造方法包括在透明基板的表面上形成透明膜,在透明膜上形成预定图案的遮光部件,在透明膜和遮光部件上形成蚀刻掩模层,各向异性蚀刻蚀刻掩模 层,在透明膜上并沿着遮光部件的周缘留下蚀刻掩模层,并用遮光部件和剩余的蚀刻掩模层选择性地蚀刻透明膜作为掩模,以形成透明的相位部件 膜沿着遮光构件的周缘。