To provide a method of manufacturing a polishing pad molding die in which a polishing pad that performs a flattening work highly accurately and highly efficiently is manufactured, a polishing pad molding die manufactured by the method, and a polishing pad manufactured by the die.
A method of manufacturing a polishing pad molding die 10 for a polishing pad 13 on which a micro pattern α having fine protrusions 12 arranged thereon has: a master die fabrication process of fabricating a master die 26, on which a micro pattern β having an inverted concavo-convex relationship with the micro pattern α is formed, on one side of a substrate 21; a positive slave die fabrication process of fabricating a positive slave die 27, on the surface layer of which a micro pattern γ is formed, by using the master die 26; a negative slave die fabrication process of fabricating a negative slave die 18, on the surface layer of which a micro pattern δ is formed, by using the positive slave die 27; and an assembly process of arraying and fixing the negative slave die 18 on a base 17 while facing the surface layer on which the micro pattern δ is formed upward to constitute the polishing pad molding die 10.
TAKADA MASATO
NAKA TOSHIAKI
MATSUO MASAAKI
ITO TAKAHIRO
SUZUKI YOSHITOMO
KIMURA KEIICHI
KHAJORNRUNGRUANG PANART
KYUSHU INST TECHNOLOGY
Yohei Kiyoi
Yoshihiro Kurita
Takayuki Imanaka