会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Phase-shift mask for printing high-resolution images and a method of fabrication
    • 用于打印高分辨率图像的相移掩模和制造方法
    • US06428938B1
    • 2002-08-06
    • US09596900
    • 2000-06-19
    • Chin-Hsiang LinShy-Jay LinSheng-Chi ChinWei-Zen Chou
    • Chin-Hsiang LinShy-Jay LinSheng-Chi ChinWei-Zen Chou
    • G03F900
    • G03F1/30
    • An improved phase-shift photomask and method of fabrication are described. The method for making this phase-shift mask involves depositing an opaque film, such as chromium (Cr), on a transparent plate, such as SiO2 (quartz plate). An electron beam photoresist layer is deposited on the Cr film and is partially exposed in regions A and completely exposed in closely spaced alternate regions B by an electron beam. The exposed photoresist is then developed. The Cr film is etched in regions B while the remaining resist in regions A protect the Cr from etching. The e-bean resist is plasma etched back to remove the resist over regions A and then the quartz plate in regions B is recessed to a depth d by plasma etching while the Cr protects the quartz in regions A from etching. The recess is etched to a depth to provide an optical path difference between A and B of ½ wavelength (180°) when UV light is transmitted through the mask to expose resist on a product substrate. This 180° phase-shift minimizes the diffracted light under the Cr film between regions A and B and improves the DOF and therefore the photoresist resolution. Since a single e-beam resist is used to make the mask it is more manufacturing cost effective with improved alignment accuracy between regions A and B.
    • 描述了改进的相移光掩模和制造方法。 制造该相移掩模的方法包括在诸如SiO 2(石英板)的透明板上沉积不透明的膜,例如铬(Cr)。 电子束光致抗蚀剂层沉积在Cr膜上,并部分暴露在区域A中,并通过电子束完全暴露在紧密间隔的交替区域B中。 然后曝光的光刻胶显影。 在区域B中蚀刻Cr膜,而区域A中的剩余抗蚀剂保护Cr不被蚀刻。 等离子体蚀刻回蚀刻e-bean抗蚀剂以去除区域A上的抗蚀剂,然后通过等离子体蚀刻将区域B中的石英板凹入深度d,同时Cr保护区域A中的石英免受蚀刻。 当UV光通过掩模透射以暴露产品基底上的抗蚀剂时,凹陷被蚀刻到深度以提供½波长(180°)的A和B之间的光程差。 这种180°相移使区域A和B之间的Cr膜下的衍射光最小化,并且改善了DOF并因此改善了光刻胶分辨率。 由于使用单个电子束抗蚀剂来制造掩模,因此在区域A和区域B之间具有改善的对准精度是更具制造成本效益的。
    • 3. 发明授权
    • Method of making a semiconductor wafer imaging mask having uniform pattern features
    • 制造具有均匀图案特征的半导体晶片成像掩模的方法
    • US06599665B1
    • 2003-07-29
    • US09686099
    • 2000-10-10
    • Shy-Jay LinSheng-Chi Chin
    • Shy-Jay LinSheng-Chi Chin
    • G03F900
    • G03F1/78G03F1/36G03F1/80G03F7/30
    • A mask used to image circuit patterns onto a semiconductor wafer exhibits improved uniformity of critical feature dimensions. A pattern of dummy features is formed around the outer periphery of the main pattern during manufacture of the mask. The presence of the dummy field eliminates loading of the etch rate at the marginal areas of the main pattern, thereby assuring that all of the features in the main pattern field are etched at substantially the same rate. By using differing radiation dosages to expose the photoresist employed to form the main pattern and dummy patterns, a thickness of the photoresist remains over the dummy field pattern after development of the photoresist. This remaining photoresist has a thickness sufficient to prevent subsequent etching of the underlying metal which would otherwise leave features in the metal layer that would be imaged onto the wafer.
    • 用于将电路图案成像到半导体晶片上的掩模表现出改进的关键特征尺寸的均匀性。 在制造掩模期间,在主图案的外周围形成虚拟特征图案。 虚拟场的存在消除了在主图案的边缘区域处的蚀刻速率的加载,从而确保主图案场中的所有特征以基本相同的速率被蚀刻。 通过使用不同的辐射剂量来暴露用于形成主图案和虚设图案的光致抗蚀剂,在光致抗蚀剂显影之后,光致抗蚀剂的厚度保留在伪场图案上。 该剩余的光致抗蚀剂具有足以防止随后蚀刻下面的金属的厚度,否则将会残留在将被成像到晶片上的金属层中的特征。
    • 9. 发明授权
    • Dark line CD and XY-CD improvement method of the variable shaped beam lithography in mask or wafer making
    • 可变形光束光刻在掩模或晶圆制造中的暗线CD和XY-CD改进方法
    • US06799312B1
    • 2004-09-28
    • US09584428
    • 2000-06-05
    • Fei-Gwo TsaiShy-Jay Lin
    • Fei-Gwo TsaiShy-Jay Lin
    • G06F1750
    • B82Y10/00B82Y40/00H01J37/3174H01J2237/31762H01J2237/31764
    • This invention provides a method of using an electron beam exposure system having an electron beam with a variable shape to form patterns in a layer of resist on a substrate, a mask substrate or an integrated circuit wafer, while maintaining adequate critical dimension control and beam stability. This is accomplished by setting the electron beam to a fixed square beam with a width set to provide optimum XY critical dimension control for exposing a frame pattern surrounding the original pattern. The frame pattern has a width of a first distance and surrounds the outer perimeter of the original pattern. This provides optimum XY critical dimension control at the outer perimeter of the original pattern. The remainder of the exposure field, which is the exposure field with the original pattern and the frame pattern subtracted away is exposed using an electron beam having a variable size and shape. In one embodiment the exposure of the frame pattern is completed before the exposure of the remainder pattern is carried out. Alternatively, the exposure of the remainder pattern can be completed before the exposure of the frame pattern is carried out. The digital design data for the frame pattern and the remainder of the exposure field is formed using a computer processor and the original design data.
    • 本发明提供一种使用具有可变形状的电子束的电子束曝光系统的方法,以在基板,掩模基板或集成电路晶片上的抗蚀剂层中形成图案,同时保持适当的临界尺寸控制和光束稳定性 。 这是通过将电子束设置为具有设置的宽度的固定方波来实现的,以提供用于曝光围绕原始图案的帧图案的最佳XY临界尺寸控制。 框架图案具有第一距离的宽度并且围绕原始图案的外周边。 这在原始图案的外围提供了最佳的XY临界尺寸控制。 使用具有可变尺寸和形状的电子束来曝光曝光场的剩余部分,其中原始图案和帧图案的曝光场被减去。 在一个实施例中,在执行余下图案的曝光之前完成帧图案的曝光。 或者,可以在执行帧图案的曝光之前完成余数图案的曝光。 使用计算机处理器和原始设计数据形成帧图案的数字设计数据和曝光场的其余部分。
    • 10. 发明授权
    • Apparatus and method for inspecting phase shifting masks
    • 用于检查相移掩模的装置和方法
    • US6018392A
    • 2000-01-25
    • US177340
    • 1998-10-23
    • San-De TzuShy-Jay Lin
    • San-De TzuShy-Jay Lin
    • G01N21/956G03F1/26G03F1/84G01B9/02
    • G03F1/84G01N21/95607G03F1/26
    • An apparatus for die to die inspection of masks having transparent phase shifting elements and a method of die to die inspection of masks having transparent phase shifting elements. Light from a light source is directed through a transparent mask substrate and a phase shifting mask element to a first objective lens, and through the transparent mask substrate and another phase shifting mask element to a second objective lens. Light from the first objective lens is then given a 180.degree. phase shift by a phase adjustment unit. Light from the phase adjustment unit and the second objective lens is combined at a split mirror and directed to a detector. The method makes use of the fact that the intensity of the light at the detector is proportional to the square of the cosine of one half of the phase angle between the light from the phase adjusting unit and light from the second objective lens. If the intensity of light reaching the detector is not zero, or very small, the mask has a defect.
    • 一种用于对具有透明相移元件的掩模进行裸片检查的设备,以及对具有透明移相元件的掩模进行裸片检查的方法。 来自光源的光通过透明掩模基板和相移掩模元件引导到第一物镜,并且通过透明掩模基板和另一相移掩模元件引导到第二物镜。 然后通过相位调整单元对来自第一物镜的光进行180°相移。 来自相位调整单元和第二物镜的光在分离镜处组合并被引导到检测器。 该方法利用了检测器的光强度与来自相位调整单元的光和来自第二物镜的光之间的相位角的一半的余弦平方成正比的事实。 如果到达检测器的光的强度不为零或非常小,则掩模具有缺陷。