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    • 1. 发明授权
    • Method for forming shallow trench isolation structure with anti-reflective liner
    • 用抗反射衬垫形成浅沟槽隔离结构的方法
    • US07129149B1
    • 2006-10-31
    • US10862520
    • 2004-06-07
    • Chih-Hsiang ChenYiming GuGuo-Qiang Lo
    • Chih-Hsiang ChenYiming GuGuo-Qiang Lo
    • H01L21/76H01L21/336
    • H01L21/76224
    • The present invention relates to a shallow trench isolation structure and a method for forming a shallow trench isolation structure on a semiconductor substrate. A masking structure that includes a hard mask is formed over the semiconductor substrate, and an etch is performed so as to form trenches within the semiconductor substrate. An anti-reflective film is deposited such that it extends within the trench. A dielectric film is deposited over the anti-reflective film such that it fills the trench. A heating process step is then performed to anneal the substrate, rounding the corners of the trench. A chemical mechanical polishing process is performed to remove those portions of the anti-reflective film and the dielectric film that overlie the hard mask. The hard mask is then removed, producing a shallow trench isolation structure that prevents lifting and notching in subsequent fabrication steps.
    • 本发明涉及浅沟槽隔离结构和在半导体衬底上形成浅沟槽隔离结构的方法。 在半导体衬底上形成包括硬掩模的掩模结构,并且进行蚀刻以在半导体衬底内形成沟槽。 沉积防反射膜使得其在沟槽内延伸。 电介质膜沉积在抗反射膜上,使得其填充沟槽。 然后进行加热工艺步骤以使衬底退火,使沟槽的角落四舍五入。 执行化学机械抛光工艺以去除覆盖在硬掩模上的抗反射膜和电介质膜的那些部分。 然后去除硬掩模,产生浅沟槽隔离结构,其在随后的制造步骤中防止提起和开槽。
    • 3. 发明授权
    • Photolithographic apparatus
    • 光刻设备
    • US08982314B2
    • 2015-03-17
    • US13405238
    • 2012-02-25
    • Qiang WuYiming Gu
    • Qiang WuYiming Gu
    • G03B27/32G03F7/20
    • G03F7/70575G03F7/203G03F7/70466
    • A photolithographic apparatus for use with a photo-resist comprises a first component that generates a first chemical substance and produces a chemical amplification action and a second component that generates a second chemical substance. The photolithographic apparatus comprises a first exposure subsystem for selectively illuminating a surface of the photo-resist using a light of a first wavelength band such that the first component generates the first chemical substance and a second exposure subsystem for uniformly illuminating the surface using a light of a second wavelength band such that the second component generates the second chemical substance. The second chemical substance reacts with the first chemical substance to reduce the mass concentration of the first chemical substance in the photo-resist and improves the contrast of a latent image of the first chemical substance formed in the photo-resist.
    • 用于光刻胶的光刻设备包括产生第一化学物质并产生化学放大作用的第一组分和产生第二化学物质的第二组分。 光刻设备包括:第一曝光子系统,用于使用第一波长带的光选择性地照射光刻胶的表面,使得第一成分产生第一化学物质;以及第二曝光子系统,用于使用 第二波长带,使得第二组分产生第二化学物质。 第二化学物质与第一化学物质反应以降低光致抗蚀剂中的第一化学物质的质量浓度并且改善形成在光致抗蚀剂中的第一化学物质的潜像的对比度。
    • 6. 发明授权
    • Method for determining photoresist thickness and structure formed using determined photoresist thickness
    • 确定光致抗蚀剂厚度和使用确定的光致抗蚀剂厚度形成的结构的方法
    • US07235336B1
    • 2007-06-26
    • US10808806
    • 2004-03-25
    • Yiming Gu
    • Yiming Gu
    • G03C5/00
    • G03F7/168G03F7/30G03F7/3028
    • A method for determining photoresist thickness is disclosed that can be used in a semiconductor fabrication process. A layer of material is formed that has one or more common characteristic relative to the material in the layer that is to be patterned in the semiconductor fabrication process. A layer of photoresist is then formed that has varying thickness. The thickness of the layer of photoresist is determined at a plurality of different points. The layer of photoresist is exposed, developed and etched. The remaining structures are then analyzed to determine photoresist thickness to be used in the semiconductor fabrication process. The determined photoresist thickness is then used in the semiconductor fabrication process to form structures on a semiconductor wafer.
    • 公开了一种用于确定光致抗蚀剂厚度的方法,可用于半导体制造工艺。 形成一层材料,其相对于在半导体制造工艺中待图案化的层中的材料具有一个或多个共同特性。 然后形成具有变化的厚度的光致抗蚀剂层。 在多个不同点确定光致抗蚀剂层的厚度。 光致抗蚀剂层被曝光,显影和蚀刻。 然后分析剩余的结构以确定在半导体制造工艺中使用的光致抗蚀剂厚度。 然后将所确定的光致抗蚀剂厚度用于半导体制造工艺中以在半导体晶片上形成结构。
    • 7. 发明授权
    • Method for generating a swing curve and photoresist feature formed using swing curve
    • 使用摆动曲线形成摆动曲线和光刻胶特征的方法
    • US06733936B1
    • 2004-05-11
    • US10247877
    • 2002-09-19
    • Yiming GuJohn L. Sturtevant
    • Yiming GuJohn L. Sturtevant
    • G03C500
    • G03F7/168G03F7/30G03F7/3028
    • A method for generating a swing curve and a photoresist feature formed using the swing curve. A layer of photoresist is formed that has varying thickness. The thickness of the layer of photoresist is determined at a plurality of points. The semiconductor wafer is then exposed and developed to form a photoresist structure that includes features. For each of the points at which thickness was determined, the size of a corresponding feature is determined. A curve is then determined that correlates the thickness measurements and the size measurements. The resulting swing curve is then used to determine a thickness for photoresist deposition and a photoresist layer is deposited, exposed, and developed to obtain a photoresist feature having the desired size.
    • 使用摆动曲线形成摆动曲线和光致抗蚀剂特征的方法。 形成具有不同厚度的光致抗蚀剂层。 在多个点处确定光致抗蚀剂层的厚度。 然后将半导体晶片曝光和显影以形成包括特征的光致抗蚀剂结构。 对于确定厚度的每个点,确定相应特征的尺寸。 然后确定将厚度测量和尺寸测量相关联的曲线。 然后将所得的摆动曲线用于确定光致抗蚀剂沉积的厚度,并且沉积,曝光和显影光致抗蚀剂层以获得具有所需尺寸的光致抗蚀剂特征。