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    • 3. 发明授权
    • Method and apparatus for contact hole unit cell formation
    • 接触孔单元电池形成的方法和装置
    • US07556891B2
    • 2009-07-07
    • US10973182
    • 2004-10-25
    • Soon Yoeng TanSia Kim TanQunying LinHuey Ming ChongLiang-Choo Hsia
    • Soon Yoeng TanSia Kim TanQunying LinHuey Ming ChongLiang-Choo Hsia
    • G03F9/00G03F7/20
    • G03F1/29G03F1/26
    • A method for forming a contact hole unit cell is provided. A light transparent contact hole region of a first phase is positioned at a first plane. A light transparent phase-shifting region of a second phase is positioned at the first plane, the second phase being substantially out of phase with the first phase. The phase-shifting region substantially surrounds the contact hole region. A light transparent border region is positioned at the first plane outside the phase-shifting region. The border region has a phase substantially the same as that of the contact hole region. A chrome pad is positioned at the first plane outside and contacting at least a portion of the border region. The contact hole region, the phase-shifting region, the border region, and the chrome pad are positioned to cause light from the first plane to be reinforcing in a target contact hole configuration on a second plane and to be substantially neutralizing outside the target contact hole configuration on the second plane.
    • 提供一种形成接触孔单元的方法。 第一相的透光接触孔区域位于第一平面。 第二相的光透明相移区位于第一平面处,第二相基本上与第一相不同相。 相移区域基本上围绕接触孔区域。 光透明边界区域位于相移区域外的第一平面处。 边界区域具有与接触孔区域大致相同的相位。 铬垫位于第一平面外部并与边界区域的至少一部分接触。 定位接触孔区域,相移区域,边界区域和铬焊盘以使得来自第一平面的光在第二平面上的目标接触孔构造中被加强并且基本上在目标接触点之外中和 孔配置在第二平面上。
    • 6. 发明授权
    • Method for dual damascene patterning with single exposure using tri-tone phase shift mask
    • 使用三色相移掩模的单次曝光的双镶嵌图案化方法
    • US07288366B2
    • 2007-10-30
    • US10693202
    • 2003-10-24
    • Sia Kim TanQun Ying LinSoon Yoeng TanHuey Ming Chong
    • Sia Kim TanQun Ying LinSoon Yoeng TanHuey Ming Chong
    • G03F9/00
    • G03F1/32
    • A reticle structure and a method of forming a photoresist profile on a substrate using the reticle having a multi-level profile. The reticle comprises (1) a transparent substrate, (2) a partially transmitting 180 degree phase shift film overlying predetermined areas of the transparent substrate to transmit approximately 20 to 70% of incident light, and (3) an opaque film overlying the predetermined areas of the partially transmitting 180 degree phase shift film. The method comprises the following steps: a) depositing a photoresist film over the substrate; b) directing light to the photoresist film through the reticle, and c) developing the photoresist film to form an opening in the resist layer where light only passed thru the substrate, and to remove intermediate thickness of the photoresist film, in the areas where the light passed through the partially transmitting 180 degree phase shift film. In an aspect, the photoresist film is comprised of a lower photoresist layer and an upper photoresist layer. The lower photoresist layer is less sensitive to light than the upper photoresist layer. In an aspect, the resist profile is used to form a dual damascene shaped opening.
    • 掩模版结构和使用具有多层轮廓的掩模版在基板上形成光刻胶轮廓的方法。 掩模版包括(1)透明基板,(2)覆盖透明基板的预定区域的部分透射的180度相移膜,以透射大约20至70%的入射光,以及(3)覆盖预定区域的不透明膜 的部分透射180度相移膜。 该方法包括以下步骤:a)在衬底上沉积光致抗蚀剂膜; b)通过掩模版将光引导到光致抗蚀剂膜,以及c)使光致抗蚀剂膜显影,以在抗蚀剂层中形成光,其中只有光通过基底,并且除去光致抗蚀剂膜的中间厚度, 光通过部分透射的180度相移膜。 在一个方面,光致抗蚀剂膜由下光致抗蚀剂层和上光致抗蚀剂层组成。 下部光致抗蚀剂层比上部光致抗蚀剂层对光敏感性差。 在一方面,抗蚀剂轮廓用于形成双镶嵌形状的开口。