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US 2022/0189733 A1Published application
Thermal-aided inspection by advanced charge controller module in a charged particle system
AssigneeASML Netherlands B.V.
InventorsNing YE, Jun JIANG, Jian ZHANG, Yixiang WANG
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Abstract
Apparatuses, systems, and methods for providing beams for controlling charges on a sample surface of charged particle beam system. In some embodiments, a module comprising a laser source configured to emit a beam. The beam may illuminate an area adjacent to a pixel on a wafer to indirectly heat the pixel to mitigate a cause of a direct photon-induced effect at the pixel. An electron beam tool configured to detect a defect in the pixel, wherein the defect is induced by the indirect heating of the pixel.
Claims15
An electron beam system, the system comprising:
- a module configured to emit a beam that illuminates an area adjacent to a pixel on a wafer to indirectly heat the pixel to mitigate a cause of a direct photon-induced effect at the pixel;
- and an electron beam tool configured to detect a defect in the pixel, wherein the defect is induced by the indirect heating of the pixel.
Dependencies are inferred from the claim text.