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    • 47. 发明授权
    • Developer/rinse formulation to prevent image collapse in resist
    • 显影剂/漂洗配方以防止抗蚀剂中的图像塌陷
    • US06451510B1
    • 2002-09-17
    • US09790160
    • 2001-02-21
    • Scott A. MessickWayne M. MoreauChristopher F. Robinson
    • Scott A. MessickWayne M. MoreauChristopher F. Robinson
    • G03F732
    • G03F7/322G03F7/32G03F7/40
    • An apparatus and method are provided for developing photoresist patterns on electronic component substrates such as semiconductor wafers. The method and apparatus use a specially defined developer composition in sequence with a specially defined rinse composition to develop an exposed photoresist pattern and then to rinse the developed pattern. Both the developer composition and rinse composition contain an anionic surfactant and, when the solutions are used in sequence, have been found to provide a resist pattern which avoids pattern collapse even when small features such as line widths less than 150 nm with aspect ratios of greater than about 3 are formed. It is preferred to use a puddle developing and puddle rinsing process to develop and rinse the exposed wafer. Preferred anionic surfactants are ammonium perfluoroalkyl sulfonate and ammonium perfluoroalkyl carboxylate.
    • 提供了一种用于在诸如半导体晶片的电子元件基板上显影光刻胶图案的装置和方法。 该方法和装置使用特定定义的漂洗组合物依次使用特定定义的显影剂组合物,以显影曝光的光致抗蚀剂图案,然后漂洗显影图案。 显影剂组合物和漂洗组合物都含有阴离子表面活性剂,并且当依次使用溶液时,已经发现提供了抗蚀剂图案,即使当诸如线宽小于150nm的长宽比较大的小特征 大约3个。 优选使用水坑开发和水泥漂洗工艺来开发和冲洗暴露的晶片。 优选的阴离子表面活性剂是全氟烷基磺酸铵和全氟烷基羧酸铵。