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    • 3. 发明授权
    • Angled-wedge chrome-face wall for intensity balance of alternating phase shift mask
    • 角度楔形铬面墙用于交变相移掩模的强度平衡
    • US08034543B2
    • 2011-10-11
    • US12696067
    • 2010-01-29
    • Gek Soon ChuaSia Kim TanQunying LinCho Jui TayChenggen Quan
    • Gek Soon ChuaSia Kim TanQunying LinCho Jui TayChenggen Quan
    • G03F7/20G03F7/26
    • G03F1/30
    • A method for forming a semiconductor device is presented. The method includes providing a substrate having a photoresist thereon and transmitting a light source through a mask having a pattern onto the photoresist. The mask comprises a mask substrate having first, second and third regions, the third region is disposed between the first and second regions. The mask also includes a light reducing layer over the mask substrate having a first opening over the first region and a second opening over the second region. The first and second openings have layer sidewalls. The sidewalls of the light reducing layer are slanted at an angle less than 90 degrees from the plane of a top surface of the mask substrate. The method also includes developing the photoresist to transfer the pattern of the mask to the photoresist.
    • 提出了一种形成半导体器件的方法。 该方法包括提供其上具有光致抗蚀剂的基底,并通过具有图案的掩模将光源透射到光致抗蚀剂上。 掩模包括具有第一,第二和第三区域的掩模基板,第三区域设置在第一和第二区域之间。 掩模还包括在掩模基板上方的减光层,在第一区域上具有第一开口,在第二区域上具有第二开口。 第一和第二开口具有层侧壁。 减光层的侧壁以与掩模基板的顶面的平面成90度以下的角度倾斜。 该方法还包括显影光致抗蚀剂以将掩模的图案转移到光致抗蚀剂。
    • 4. 发明授权
    • Angled-wedge chrome-face wall for intensity balance of alternating phase shift mask
    • 角度楔形铬面墙用于交变相移掩模的强度平衡
    • US07674562B2
    • 2010-03-09
    • US11297532
    • 2005-12-07
    • Gek Soon ChuaSia Kim TanQunying LinCho Jui TayChenggen Quan
    • Gek Soon ChuaSia Kim TanQunying LinCho Jui TayChenggen Quan
    • G03F1/08G03F1/14
    • G03F1/30
    • A method for forming a phase shift mask is presented. The method includes providing a substrate including a transparent material having first, second and third regions, the third region being disposed between the first and second regions. The method also includes forming a light reducing layer on a first major surface of the substrate. The light reducing layer is patterned to form a patterned light reducing layer having sidewalls defining openings to expose the first and second regions. The patterned light reducing layer is processed to transform the sidewalls of the patterned light reducing layer to angled sidewalls having an angle of less than 90° from a plane of the first major surface of the substrate. The angled sidewalls improve intensity balance of an image-formed by light-transmitted through the mask.
    • 提出了一种形成相移掩模的方法。 该方法包括提供包括具有第一,第二和第三区域的透明材料的基板,该第三区域设置在第一和第二区域之间。 该方法还包括在基板的第一主表面上形成减光层。 图案化减光层以形成具有限定开口以暴露第一和第二区域的侧壁的图案化减光层。 处理图案化的光降低层以将图案化的减光层的侧壁转变成与基板的第一主表面的平面成小于90°的角度的成角度的侧壁。 成角度的侧壁提高了透过掩模的光图像形成的强度平衡。