Patent number: 7538444
Abstract: In a wafer (1) with a number of exposure fields (2), each of which exposure fields (2) comprising a number of lattice fields (3) with an IC (4) located therein, two groups (5, 7) of dicing paths (6, 8) are provided and four control module fields (A1, A2, A3, A4, B1, B2, B3, B4, C2, C4, D2, D4, E1, E3, F1, F3, G2, H1, J1) are assigned to each exposure field (2), each of which control module fields (A1, A2, A3, A4, B1, B2, B3, B4, C2, C4, D2, D4, E1, E3, F1, F3, G2, H1, J1) contains at least one optical control module (OCM-A1, OCMA2, OCM-A3, OCM-A4, OCM-B1, OCM-B2, OCM-B3, OCM-B4, OCM-C2, OCM-D4) and lies within the exposure field (2) in question and is provided in place of at least one lattice field (3) and is arranged at a mutual minimum distance (K).
Type:
Grant
Filed:
December 9, 2004
Date of Patent:
May 26, 2009
Inventors:
Heimo Scheucher, Guenther Pfeiler, Rik Wenting
Publication number: 20070152303
Abstract: In a wafer (1) with a number of exposure fields (2), each of which exposure fields (2) comprising a number of lattice fields (3) with an IC (4) located therein, two groups (5, 7) of dicing paths (6, 8) are provided and four control module fields (A1, A2, A3, A4, B1, B2, B3, B4, C2, C4, D2, D4, E1, E3, F1, F3, G2, H1, J1) are assigned to each exposure field (2), each of which control module fields (A1, A2, A3, A4, B1, B2, B3, B4, C2, C4, D2, D4, E1, E3, F1, F3, G2, H1, J1) contains at least one optical control module (OCM-A1, OCMA2, OCM-A3, OCM-A4, OCM-B1, OCM-B2, OCM-B3, OCM-B4, OCM-C2, OCM-D4) and lies within the exposure field (2) in question and is provided in place of at least one lattice field (3) and is arranged at a mutual minimum distance (K).
Type:
Application
Filed:
December 9, 2004
Publication date:
July 5, 2007
Inventors:
Heimo Scheucher, Guenther Pfeiler, Rik Wenting