发明名称 |
Pellicle for lithogrpahy |
摘要 |
There is provided a pellicle wherein the frame is cut with one or more slight-chamfers, and in particular the one cut along the inner edge of the upper annular face of the frame, to which the pellicle membrane is glued, has a slope greater than 45 degrees so that the pellicle membrane when slackened does not touch the lower ridge of the slight chamfer. |
申请公布号 |
US9268213(B2) |
申请公布日期 |
2016.02.23 |
申请号 |
US201314098652 |
申请日期 |
2013.12.06 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
Shirasaki Toru |
分类号 |
G03F1/62;G03F1/64;G03F1/00 |
主分类号 |
G03F1/62 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A pellicle for lithography comprising:
(i) a pellicle membrane; and (ii) a pellicle frame, to an upper annular face of which the pellicle membrane is tensely adhered, wherein the angle of a slight-chamfering formed along an inner edge of the upper annular face of the pellicle frame to which the pellicle membrane is adhered is 10 degrees or greater but less than 30 degrees with respect to a vertical surface of the pellicle frame. |
地址 |
Tokyo JP |