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
    • 33. 发明申请
    • Photomasks having sub-lithographic features to prevent undesired wafer patterning
    • 具有亚光刻特征以防止不期望的晶片图案化的光掩模
    • US20110177435A1
    • 2011-07-21
    • US12690312
    • 2010-01-20
    • Russell T. HerrinEdmund J. SprogisAnthony K. Stamper
    • Russell T. HerrinEdmund J. SprogisAnthony K. Stamper
    • G03F1/00
    • G03F1/42G03F1/36G03F1/38
    • A photomask that is used as a light filter in an exposure system is made of at least one layer of material comprising one or more transparent regions and one or more non-transparent regions. The difference between the transparent regions and the non-transparent regions defines the features that will be illuminated by the exposure system on a photoresist that will be exposed using the exposure system. The features comprise one or more device shapes and at least one sub-lithographic shape that will be exposed upon the photoresist. The sub-lithographic shape has an sub-lithographic shape size that is limited in such a way that the sub-lithographic shape causes a physical change only in a surface of the photoresist. Therefore, because the sub-lithographic shape is so small, it avoids forming an opening through the photoresist after the photoresist is developed and only causes a change on the surface of the photoresist.
    • 在曝光系统中用作滤光器的光掩模由包括一个或多个透明区域和一个或多个不透明区域的至少一层材料制成。 透明区域和不透明区域之间的差异限定了曝光系统将在将使用曝光系统曝光的光刻胶上照亮的特征。 这些特征包括一个或多个器件形状和将被暴露在光刻胶上的至少一个亚光刻形状。 亚光刻形状具有亚光刻形状尺寸,其受到限制,使得亚光刻形状仅在光致抗蚀剂的表面引起物理变化。 因此,由于亚光刻形状如此之小,因此避免了在光致抗蚀剂显影之后通过光致抗蚀剂形成开口,并且仅引起光致抗蚀剂表面的变化。