The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2024
Filed:
May. 23, 2022
Applied Materials, Inc., Santa Clara, CA (US);
Thomas L. Laidig, Richmond, CA (US);
Christopher Bencher, Cupertino, CA (US);
Hwan J. Jeong, Los Altos, CA (US);
Uwe Hollerbach, Fremont, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A digital lithography system may adjust a wavelength of the light source to compensate for tilt errors in micromirrors while maintaining a perpendicular direction for the reflected light. Adjacent pixels may have a phase shift that is determined by an optical path difference between their respective light beams. This phase shift may be preselected to be any value by generating a corresponding wavelength at the light source based on the optical path difference. To generate a specific wavelength corresponding to the desired phase shift, the light source may produce multiple light components that have wavelengths that bracket the wavelength of the selected phase shift. The intensities of these components may then be controlled individually to produce an effect that approximates the selected phase shift on the substrate.