Patent ID: 11953838
Assignee: ASML HOLDING N.V.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. A cleaning substrate for removing particles of a contaminant comprising a first material from a working surface comprising a second material, wherein the working surface comprises a plurality of burls, the cleaning substrate comprising:
a base having a lateral surface;
a conductive coating covering the lateral surface; and
a coating on at least part of a top surface of the conductive coating, the coating comprising a third material and a raised corner for removing particles of the contaminant and the coating only covering a part of the conductive coating,
wherein an uncoated part of the top surface of the conductive coating is located in an inner portion of a confrontation area with the working surface, and
wherein a bond dissociation energy of a bond between the first material and the second material is less than a bond dissociation energy of a bond between the second material and the third material.