US 11,850,621 B2
Edge blackening for optical devices
Kangkang Wang, San Jose, CA (US); Yaseer Arafath Ahamed, Austin, TX (US); Yige Gao, Santa Clara, CA (US); Benjamin B. Riordon, Newburyport, MA (US); Rami Hourani, Santa Clara, CA (US); James D. Strassner, Austin, TX (US); Ludovic Godet, Sunnyvale, CA (US); and Thinh Nguyen, Round Rock, TX (US)
Assigned to Applied Materials, Inc., Santa Clara, CA (US)
Filed by Applied Materials, Inc., Santa Clara, CA (US)
Filed on Nov. 24, 2021, as Appl. No. 17/456,410.
Claims priority of provisional application 63/117,569, filed on Nov. 24, 2020.
Prior Publication US 2022/0212223 A1, Jul. 7, 2022
Int. Cl. B05C 1/00 (2006.01); B05D 1/00 (2006.01); B05D 5/06 (2006.01); B05C 1/02 (2006.01); B05C 13/00 (2006.01)
CPC B05C 1/006 (2013.01) [B05C 1/027 (2013.01); B05C 13/00 (2013.01); B05D 1/002 (2013.01); B05D 5/061 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical device coating assembly, comprising:
a substrate support disposed on a platform, the substrate support operable to retain an optical device substrate;
a first actuator connected to the substrate support, wherein the first actuator is configured to rotate the substrate support;
a holder disposed on the platform, the holder configured to hold a coating applicator against an edge of the optical device substrate when the optical device substrate is rotated on the substrate support; and
a second actuator operable to apply a force on the holder in a direction towards the substrate support, wherein the second actuator is a constant force actuator.