公开(公告)号：WO2022192368A1

公开(公告)日：2022-09-15

申请号：PCT/US2022/019511

申请日：2022-03-09

申请人： NIKON CORPORATION ,  PHILLIPS, Alton Hugh

发明人： GOODWIN, Eric Peter ,  GOLDSTEIN, Goldie Lynne ,  RENWICK, Stephen Paul ,  BINNARD, Michael Birk ,  CHANG, Patrick Shih ,  ROSA, Matthew David ,  WELLS, Jonathan Kyle

IPC分类号： B29C64/153 ,  B29C64/245 ,  B29C64/241 ,  B22F10/28 ,  B22F12/37 ,  B22F12/90 ,  B22F10/31 ,  B22F12/00 ,  B33Y10/00 ,  B33Y30/00

摘要： The problem of correcting positioning errors in 3D printing processes is addressed by systems and methods that utilize sensing modules to determine a position or an orientation of a substrate (110) or a 3D printing build platform (120). A first sensing module (150) may determine a position or orientation of the substrate. The first sensing module may utilize a variety of light sources, reflective elements, optical detectors, and controllers to determine the position or orientation of the substrate. A second sensing module (160) may determine a position or orientation of the 3D printing build platform relative to the position or orientation of the substrate. The second sensing module may employ one or more fiducial markers to determine information indicative of the position or orientation of the 3D printing build platform. The position or orientation information determined by the first or second sensing modules may be used to correct errors in the 3D printing process.