US 12,292,384 B2
Systems and methods for additive manufacturing operations
Vivek R. Dave, Concord, NH (US); Mark J. Cola, Santa Fe, NM (US); R. Bruce Madigan, Butte, MT (US); Alberto Castro, Santa Fe, NM (US); Glenn Wikle, Santa Fe, NM (US); Lars Jacquemetton, Santa Fe, NM (US); and Peter Campbell, Albuquerque, NM (US)
Assigned to Divergent Technologies, Inc., Los Angeles, CA (US)
Filed by DIVERGENT TECHNOLOGIES, INC., Los Angeles, CA (US)
Filed on May 10, 2024, as Appl. No. 18/661,222.
Application 18/661,222 is a continuation of application No. 18/136,750, filed on Apr. 19, 2023, granted, now 12,019,026.
Application 18/136,750 is a continuation of application No. 16/915,858, filed on Jun. 29, 2020, granted, now 11,674,904, issued on Jun. 13, 2023.
Application 16/915,858 is a continuation of application No. 16/234,333, filed on Dec. 27, 2018, granted, now 10,717,264, issued on Jul. 21, 2020.
Application 16/234,333 is a continuation of application No. 15/282,822, filed on Sep. 30, 2016, granted, now 10,207,489, issued on Feb. 19, 2019.
Claims priority of provisional application 62/235,232, filed on Sep. 30, 2015.
Prior Publication US 2024/0302286 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 21/71 (2006.01); B33Y 30/00 (2015.01); B33Y 50/00 (2015.01); G01N 21/00 (2006.01); H01L 21/66 (2006.01); G01N 21/84 (2006.01); G06N 20/00 (2019.01)
CPC G01N 21/71 (2013.01) [B33Y 30/00 (2014.12); B33Y 50/00 (2014.12); G01N 21/00 (2013.01); H01L 22/12 (2013.01); G01N 2021/8411 (2013.01); G06N 20/00 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
controlling an energy beam of an additive manufacturing system to scan across a build region of a powder bed of the additive manufacturing system using a plurality of discrete scan paths, wherein each discrete scan path has a respective path length;
generating sensor data, using an optical sensor of the additive manufacturing system, based on photons emitted from the build region of the powder bed during each discrete scan path, wherein a corresponding intensity of each discrete scan path is based on the sensor data; and
operating the additive manufacturing system based on a comparison of a baseline relationship to a relationship between the intensity of each discrete scan path and the path length of each respective discrete scan path.