公开(公告)号：US20220216092A1

公开(公告)日：2022-07-07

申请号：US17608238

申请日：2020-04-21

Applicant: ASML HOLDING N.V.

Inventor： Bruce TIRRI ,  Ping ZHOU ,  Elizabeth Mary STONE ,  David Hart PETERSON ,  Mehmet Ali AKBAS ,  Ryan MAYER ,  Richard Bryan LEWIS

IPC: H01L21/687 ,  G03F7/20 ,  C23C16/513

Abstract: A method of fabricating a substrate table includes supporting a table base and disposing a coating on a surface of the table base. The surface of the table base is substantially flat. The coating has a non-uniform thickness. The coating exerts a stress on the table so as to bend the table base. The non-uniform thickness causes a surface of the coating to become substantially flat after the bending.

公开(公告)号：US20190332015A1

公开(公告)日：2019-10-31

申请号：US16315125

申请日：2017-07-06

Applicant: ASML Netherlands B.V. ,  ASML Holding N.V.

Inventor： Thomas POIESZ ,  Satish ACHANTA ,  Mehmet Ali AKBAS ,  Pavlo ANTONOV ,  Jeroen BOUWKNEGT ,  Joost Wilhelmus Maria FRENKEN ,  Evelyn Wallis PACITTI ,  Nicolaas TEN KATE ,  Bruce TIRRI ,  Jan VERHOEVEN

IPC: G03F7/20 ,  H01L21/687

Abstract: There is disclosed a substrate holder, a method of manufacturing a substrate holder, a lithographic apparatus comprising the substrate holder, and a method of manufacturing devices using the lithographic apparatus. In one arrangement, there is provided a substrate holder for use in a lithographic apparatus. The substrate holder supports a substrate. The substrate holder comprises a main body. The main body has a main body surface. A plurality of burls are provided projecting from the main body surface. Each burl has a burl side surface and a distal end surface. The distal end surface of each burl engages with the substrate. The distal end surfaces of the burls substantially conform to a support plane and support the substrate. A layer of carbon based material is provided in a plurality of separated regions of carbon based material. The layer of carbon based material provides a surface with a lower coefficient of friction than a part of the main body surface outside the plurality of separated regions of carbon based material. The layer of carbon based material covers only part of the distal end surface of at least one of the burls. Alternatively, the layer of carbon based material covers the distal end surface and at least a portion of the burl side surface of at least one of the burls.