Slit structure as a countermeasure for the thermal deformation of a metal mask Toshinari Yamazaki, Toshio Yoshizawa, Tatsuo Yamabuchi, Shigeki Hirobayashi, Toshio Kikuta, Noriyuki Nakatani, Tahashi Mizuguchi Jpn. J. Appl. Phys., 40(12), 7170-7173 (2001). Dec.