发明名称 |
Lithographic apparatus and method |
摘要 |
A lithographic apparatus comprising a source that generates a beam of radiation, a support structure supporting a patterning device, a substrate table for holding a substrate, and a projection system projecting the patterned radiation beam onto a target portion of the substrate. The lithographic apparatus further comprises a vibration measurement apparatus configured to measure relative vibration between the patterning device and the substrate during exposure of the target portion. A control apparatus adjusts power of the radiation beam to compensate for the effect of the measured relative vibration on the pattern projected onto the substrate. |
申请公布号 |
US8830444(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201113279770 |
申请日期 |
2011.10.24 |
申请人 |
ASML Netherlands B.V. |
发明人 |
Van Schoot Jan Bernard Plechelmus;Bouchoms Igor Petrus Maria;Van Dijsseldonk Antonius Johannes Josephus;Eurlings Markus Franciscus Antonius |
分类号 |
G03F7/20;G03B27/54;G03B27/58 |
主分类号 |
G03F7/20 |
代理机构 |
Sterne, Kessler, Goldstein & Fox P.L.L.C. |
代理人 |
Sterne, Kessler, Goldstein & Fox P.L.L.C. |
主权项 |
1. A lithographic apparatus comprising:
a source configured to generate a beam of radiation; a support structure configured to supporting a patterning device, the patterning device serving to impart the radiation beam with a pattern in its cross-section; a substrate table configured to hold a substrate; a projection system configured to project the patterned radiation beam onto a target portion of the substrate; a vibration measurement apparatus configured to measure relative vibration between the patterning device and the substrate during exposure of the target portion; and a control apparatus configured to adjust power of the radiation beam to compensate for effect of the measured relative vibration on the pattern projected onto the substrate. |
地址 |
Veldhoven NL |