公开(公告)号：US20150168850A1

公开(公告)日：2015-06-18

申请号：US14624167

申请日：2015-02-17

Applicant: ASML NETHERLANDS B.V.

Inventor： Bob STREEFKERK ,  Johannes Jacobus Matheus Baselmans ,  Henrikus Herman Marie Cox ,  Antonius Theodorus Anna Maria Derksen ,  Sjoerd Nicolaas Lambertus Donders ,  Christiaan Alexander Hoogendam ,  Joeri Lof ,  Erik Roelof Loopstra ,  Jeroen Johannes Sophia Maria Mertens ,  Frits Van Der Meulen ,  Johannes Catharinus Hubertus Mulkens ,  Gerardus Petrus Mattijs Van Nunen ,  Klaus Simon ,  Bernardus Antonius Slaghekke ,  Alexander Straaijer ,  Jan-Gerard Cornelis Van Der Toorn ,  Martijn Houkes

IPC: G03F7/20

CPC classification number: G03F7/70341 ,  G03F7/70425 ,  G03F7/70525 ,  G03F7/709

Abstract: In a lithographic apparatus, a localized area of the substrate surface under a projection system is immersed in liquid. The height of a liquid supply system above the surface of the substrate can be varied using actuators. A control system uses feedforward or feedback control with input of the surface height of the substrate to maintain the liquid supply system at a predetermined height above the surface of the substrate.

Abstract translation: 在光刻设备中，将投影系统下的基板表面的局部区域浸入液体中。 可以使用致动器来改变衬底表面上方的液体供应系统的高度。 控制系统使用前馈或反馈控制输入基板的表面高度，以将液体供应系统保持在基板表面上方的预定高度。