Alternating phase mask
    1.
    发明授权
    Alternating phase mask 有权
    交替相位掩模

    公开(公告)号:US06660437B2

    公开(公告)日:2003-12-09

    申请号:US10158733

    申请日:2002-05-30

    IPC分类号: G03F900

    CPC分类号: G03F1/30

    摘要: An alternating phase mask having a branched structure containing two opaque segments is described. Two transparent surface segments are disposed on both sides of the segments or the components thereof, respectively. The surface segments are provided with phases that are displaced by 180°±&Dgr; &agr;, whereby &Dgr; &agr; a is not more than 25°. The surface segments are separated by at least one transparent surface boundary segment whose phase is situated between the phases of the adjacent surface segments.

    摘要翻译: 描述具有包含两个不透明段的分支结构的交替相位掩模。 两个透明表面片分别设置在片段的两侧或其部件上。 表面段设置有被偏移180°±Δα的相位,由此Δaa不大于25°。 表面段由相位位于相邻表面段的相位之间的至少一个透明表面边界段分开。

    Lithography mask for imaging of convex structures
    2.
    发明授权
    Lithography mask for imaging of convex structures 失效
    用于凸结构成像的平版印刷掩模

    公开(公告)号:US07354683B2

    公开(公告)日:2008-04-08

    申请号:US10928759

    申请日:2004-08-27

    IPC分类号: G03F1/00

    摘要: A lithography mask has an angled structure element (O) formed by a first opaque segment (O1) and by a second opaque segment (O2). The structure element has at least one reflex angle (α). The angled structure element (O) includes at least one convex section (A) facing the reflex angle (α). At least one transparent structure (T) adjacent to the angled structure element (O) is provided at the convex section (A) of the angled structure element (O). The transparent structure (T) is formed in separated fashion at the convex section (A) of the angled structure element (O) and thus comprises two distinguishable transparent segments (T1, T2) formed at least in sections essentially axially symmetrically with respect to the angle bisector (WH) of the reflex angle.

    摘要翻译: 光刻掩模具有由第一不透明部分(O 1)和第二不透明部分(O 2)形成的成角度的结构元件(O)。 结构元件具有至少一个反射角(α)。 倾斜结构元件(O)包括面向反射角(α)的至少一个凸部(A)。 与成角度的结构元件(O)相邻的至少一个透明结构(T)设置在倾斜结构元件(O)的凸部(A)处。 透明结构(T)以分开的方式形成在成角度的结构元件(O)的凸部(A)处,并且因此包括两个可区分的透明段(T 1,T 2),其至少形成在主要轴向对称的部分 到角度平分线(WH)的反射角度。

    Lithography mask for imaging of convex structures
    3.
    发明申请
    Lithography mask for imaging of convex structures 失效
    用于凸结构成像的平版印刷掩模

    公开(公告)号:US20050095512A1

    公开(公告)日:2005-05-05

    申请号:US10928759

    申请日:2004-08-27

    摘要: A lithography mask has an angled structure element (O) formed by a first opaque segment (O1) and by a second opaque segment (O2). The structure element has at least one reflex angle (α). The angled structure element (O) includes at least one convex section (A) facing the reflex angle (α). At least one transparent structure (T) adjacent to the angled structure element (O) is provided at the convex section (A) of the angled structure element (O). The transparent structure (T) is formed in separated fashion at the convex section (A) of the angled structure element (O) and thus comprises two distinguishable transparent segments (T1, T2) formed at least in sections essentially axially symmetrically with respect to the angle bisector (WH) of the reflex angle.

    摘要翻译: 光刻掩模具有由第一不透明部分(O 1)和第二不透明部分(O 2)形成的成角度的结构元件(O)。 结构元件具有至少一个反射角(α)。 倾斜结构元件(O)包括面向反射角(α)的至少一个凸部(A)。 与成角度的结构元件(O)相邻的至少一个透明结构(T)设置在倾斜结构元件(O)的凸部(A)处。 透明结构(T)以分开的方式形成在成角度的结构元件(O)的凸部(A)处,因此包括两个可区分的透明段(T 1,T 2),其至少形成在主要轴向对称的部分 到角度平分线(WH)的反射角度。

    Contact hole fabrication with the aid of mutually crossing sudden phase shift edges of a single phase shift mask
    4.
    发明授权
    Contact hole fabrication with the aid of mutually crossing sudden phase shift edges of a single phase shift mask 有权
    借助于单相移掩模的相互突变相移边缘的接触孔制造

    公开(公告)号:US06635388B1

    公开(公告)日:2003-10-21

    申请号:US09429837

    申请日:1999-10-29

    IPC分类号: G03F900

    CPC分类号: G03F1/34 G03F7/2022

    摘要: The invention relates to a phase shift mask for lithographically producing small structures at the limit of a resolution that is predetermined by the wavelength of the exposure radiation. The phase shift mask has first regions A and second regions B that effect a phase-shift relative to the first regions. The second regions are arranged beside the first regions for producing a sudden phase shift along the boundaries between the first and the second regions. Individual first regions touch one another via corners at points, at which the second regions also touch one another via corners. The result is that the boundaries between first and second regions merge at these points and these points are opaque to the radiation. The invention makes it possible to expose extremely small contact holes with just a single exposure and thus leads to a reduction of costs in the fabrication of integrated semiconductor circuits.

    摘要翻译: 本发明涉及一种用于光刻产生在由曝光辐射的波长预定的分辨率极限处的小结构的相移掩模。 相移掩模具有相对于第一区域进行相移的第一区域A和第二区域B. 第二区域布置在第一区域旁边,用于沿着第一和第二区域之间的边界产生突然的相移。 单个第一区域通过角点彼此接触,在第二区域也通过拐角彼此接触。 结果是第一和第二区域之间的边界在这些点处合并,并且这些点对辐射是不透明的。 本发明使得可以仅用一次曝光来暴露极小的接触孔,从而导致集成半导体电路的制造成本的降低。

    Trimming mask with semitransparent phase-shifting regions
    5.
    发明授权
    Trimming mask with semitransparent phase-shifting regions 有权
    具有半透明相移区域的修整面罩

    公开(公告)号:US06466373B1

    公开(公告)日:2002-10-15

    申请号:US09677321

    申请日:2000-09-29

    IPC分类号: G02B2700

    摘要: For lithographically producing the smallest structures at less than the exposure wavelengths in semiconductor fabrication, a double exposure is carried out using a thick phase mask and a trimming mask, the trimming mask further structures the phase-contrast lines produced by the phase mask. Besides transparent or opaque regions, the trimming mask also has phase-shifting regions. These surround transparent regions of the trimming mask through which the phase-contrast lines produced by the first mask are locally re-exposed, that is to say interrupted. The intensity profile of successive line sections is especially rich in contrast through the addition of the phase-shifting partially transparent regions on the second mask; the distances between the line sections can be reduced. The trimming mask, otherwise used only for larger structures, is therefore suitable for the configuration of the finest dimensionally critical structures.

    摘要翻译: 为了在半导体制造中以小于曝光波长的方式平版印刷产生最小结构,使用厚相位掩模和修剪掩模进行双重曝光,修整掩模进一步构成由相位掩模产生的相位对比线。 除了透明或不透明区域之外,修整掩模还具有相移区域。 这些环绕着修整掩模的透明区域,由第一掩模产生的相位对应线通过该区域被局部再暴露,也就是说被中断。 通过在第二掩模上添加相移部分透明区域,连续线段的强度分布特别丰富; 可以减少线路部分之间的距离。 因此,修剪面罩,否则仅用于较大的结构,因此适用于最精细的尺寸关键结构的构造。

    Lithographic mask and method of forming a lithographic mask
    6.
    发明授权
    Lithographic mask and method of forming a lithographic mask 有权
    平版印刷掩模和形成光刻掩模的方法

    公开(公告)号:US08293431B2

    公开(公告)日:2012-10-23

    申请号:US12761876

    申请日:2010-04-16

    IPC分类号: G03F1/40

    摘要: A lithographic mask comprises a first layer including grooves, a second layer including regions, sections and a groove-like structure that encloses the sections. The first and second layers are formed so as to reduce electrical potential differences within the second layer. A method of forming a lithographic mask includes forming first and second layers to dispose the second layer over the first layer, patterning the second layer to comprise sections, a region, and a groove-like structure enclosing the sections, and forming grooves in the first layer at portions not covered by the second layer. The first and second layers are formed to reduce potential differences within the second layers during the step of forming the grooves in the first layer.

    摘要翻译: 平版印刷掩模包括包括凹槽的第一层,包含区域的第二层和包围区段的凹槽状结构。 形成第一层和第二层以便减小第二层内的电位差。 形成光刻掩模的方法包括形成第一层和第二层以将第二层设置在第一层上,将第二层图案化以包括封闭这些区段的区段,区域和沟槽状结构,以及在第一层中形成凹槽 层在未被第二层覆盖的部分。 形成第一层和第二层,以在形成第一层中的槽的步骤期间减小第二层内的电位差。

    Apparatus for projecting a pattern into an image plane
    7.
    发明授权
    Apparatus for projecting a pattern into an image plane 有权
    用于将图案投影到图像平面中的装置

    公开(公告)号:US07339652B2

    公开(公告)日:2008-03-04

    申请号:US11339844

    申请日:2006-01-26

    IPC分类号: G03B27/54 G03B27/72 G03B27/42

    摘要: An improvement of the imaging quality with simultaneous transfer of line-space gratings and peripheral structures including a MUX space is achieved using a quadrupole illumination whose poles are formed in elongate fashion and whose longitudinal axes are arranged perpendicular to the orientation of the lines of the line-space grating arranged on a mask. The structure imaging of the line-space grating is improved with regard to contrast, MEEF, and process window, while the geometrical fidelity of the peripheral structure, in particular of the MUX space, is stabilized over a wide depth of field range.

    摘要翻译: 通过同时传输线间隔光栅和包括MUX空间的外围结构,可以实现成像质量的提高,其使用四极照明,其极以细长形式形成,其纵轴垂直于线的线的方向排列 光栅布置在掩模上。 相对于对比度,MEEF和处理窗口,线空间光栅的结构成像得到改善,而外围结构(特别是MUX空间)的几何保真度在宽的景深范围内是稳定的。

    Lithographic Mask and Method of Forming a Lithographic Mask
    8.
    发明申请
    Lithographic Mask and Method of Forming a Lithographic Mask 有权
    平版印刷掩模和形成平版印刷掩模的方法

    公开(公告)号:US20100266939A1

    公开(公告)日:2010-10-21

    申请号:US12761876

    申请日:2010-04-16

    IPC分类号: G03F1/00

    摘要: A lithographic mask comprises a first layer including grooves, a second layer including regions, sections and a groove-like structure that encloses the sections. The first and second layers are formed so as to reduce electrical potential differences within the second layer. A method of forming a lithographic mask includes forming first and second layers to dispose the second layer over the first layer, patterning the second layer to comprise sections, a region, and a groove-like structure enclosing the sections, and forming grooves in the first layer at portions not covered by the second layer. The first and second layers are formed to reduce potential differences within the second layers during the step of forming the grooves in the first layer.

    摘要翻译: 平版印刷掩模包括包括凹槽的第一层,包含区域的第二层和包围区段的凹槽状结构。 形成第一层和第二层以便减小第二层内的电位差。 形成光刻掩模的方法包括形成第一层和第二层以将第二层设置在第一层上,将第二层图案化以包括封闭这些区段的区段,区域和沟槽状结构,以及在第一层中形成凹槽 层在未被第二层覆盖的部分。 形成第一层和第二层,以在形成第一层中的槽的步骤期间减小第二层内的电位差。

    Apparatus for projecting a pattern into an image plane
    9.
    发明申请
    Apparatus for projecting a pattern into an image plane 有权
    用于将图案投影到图像平面中的装置

    公开(公告)号:US20060181691A1

    公开(公告)日:2006-08-17

    申请号:US11339844

    申请日:2006-01-26

    IPC分类号: G03B27/54

    摘要: An improvement of the imaging quality with simultaneous transfer of line-space gratings and peripheral structures including a MUX space is achieved using a quadrupole illumination whose poles are formed in elongate fashion and whose longitudinal axes are arranged perpendicular to the orientation of the lines of the line-space grating arranged on a mask. The structure imaging of the line-space grating is improved with regard to contrast, MEEF, and process window, while the geometrical fidelity of the peripheral structure, in particular of the MUX space, is stabilized over a wide depth of field range.

    摘要翻译: 通过同时传输线间隔光栅和包括MUX空间的外围结构,可以实现成像质量的提高,其使用四极照明,其极以细长形式形成,其纵轴垂直于线的线的方向排列 光栅布置在掩模上。 相对于对比度,MEEF和处理窗口,线空间光栅的结构成像得到改善,而外围结构(特别是MUX空间)的几何保真度在宽的景深范围内是稳定的。