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    • 3. 发明授权
    • Method to resolve line end distortion for alternating phase shift mask
    • 解决交变相移掩模线路失真的方法
    • US07445874B2
    • 2008-11-04
    • US10985263
    • 2004-11-10
    • Sia Kim TanQunying LinLiang-Choo Hsia
    • Sia Kim TanQunying LinLiang-Choo Hsia
    • G03F9/00G06F17/50
    • G03F1/30
    • A embodiment method for forming a layout for a phase shift mask. A embodiment comprises providing a layout comprising a first feature, a first shifter region and a second shifter region. The first feature preferably has a L-shape portion with an elbow region. The first shifter region is on the outside of the L-shaped portion and the second shifter region is on the inside of the L-shaped portion. The elbow region has an outside corner away from the second shifter region. We identify a phase conflict region caused by the L-shaped portion of the first feature, the first shifter region and the second shifter region. We resolve the phase conflict by modifying the elbow region by moving the outside corner of the elbow region away from the first shifter region and the phase conflict region. The modification of the elbow region further comprises forming a jog region in the line end section of the first feature.
    • 一种用于形成相移掩模布局的实施例方法。 实施例包括提供包括第一特征,第一移位区和第二移位区的布局。 第一特征优选具有肘部区域的L形部分。 第一移位区域位于L形部分的外侧,第二移位区域位于L形部分的内侧。 肘部区域具有远离第二移位区域的外角。 我们识别由第一特征的L形部分,第一移位区域和第二移位区域引起的相位冲突区域。 我们通过移动肘部区域的外角远离第一移位区域和相位冲突区域来修改肘部区域来解决相位冲突。 肘部区域的修改还包括在第一特征的线端部中形成点动区域。
    • 5. 发明授权
    • Method of making corrugated cell contact
    • 波纹细胞接触的方法
    • US5789267A
    • 1998-08-04
    • US702747
    • 1996-08-23
    • Liang-Choo HsiaThomas Chang
    • Liang-Choo HsiaThomas Chang
    • H01L21/02H01L21/8242H01L27/108
    • H01L27/10852H01L27/10817H01L28/87
    • A method of forming a cell contact that has improved structural strength and break-down resistance and a cell contact produced by such method are provided. The method utilizes an oxide spacer consisting of a plurality of oxide layers deposited by two alternating methods of thermal CVD and plasma CVD. After a straight contact opening is first etched by a plasma etching technique, the hole is again etched by an etchant such as hydrogen fluoride which has a high selectivity toward oxide layers formed by the plasma CVD method and a low selectivity toward oxide layers formed by the thermal CVD method. As a result, a contact opening having a corrugated side-wall is formed and into which a polysilicon is deposited to substantially fill the hole. A cell contact having a corrugated side-wall configuration is thus formed which presents improved structural rigidity and break-down resistance. A layer of rugged polysilicon layer may optionally be deposited before the deposition of the polysilicon into the contact opening to further increase the surface area of the cell contact.
    • 提供了一种形成具有改进的结构强度和耐断裂性的电池接触的方法以及通过这种方法制造的电池接触。 该方法利用由通过热CVD和等离子体CVD的两种交替方法沉积的多个氧化物层组成的氧化物间隔物。 在通过等离子体蚀刻技术首先蚀刻直接接触开口之后,再次通过诸如氟化氢的蚀刻剂蚀刻该孔,其对通过等离子体CVD法形成的氧化物层具有高选择性,并且对由 热CVD法。 结果,形成具有波形侧壁的接触开口,并且沉积多晶硅以基本上填充该孔。 由此形成具有波纹状的侧壁结构的电池触点,其具有改善的结构刚性和耐断裂性。 在将多晶硅沉积到接触开口中之前,可以任选地沉积一层坚固的多晶硅层,以进一步增加电池接触的表面积。