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
Patent number: 7508051
Abstract: In a wafer (1) with a number of exposure fields (2), each of which exposure fields (2) comprises a number of lattice fields (3) with an IC (4) located therein, two groups (5, 7) of dicing paths (6, 8) are provided and two control module fields (A1, A2, B1, B2, C1, D1, D2, E1, E2, F1) are assigned to each exposure field (2), each of which control module fields extends parallel to a first direction (X) and contains at least one optical control module (OCM-A1, OCM-A2, OCM-BI, OCM-B2, OCM-C1, OCM-D1, OCM-D2, OCM-E1, OCME2, OCM-F1), wherein a first control module field (OCM-A1, OCM-B1, OCM-C1, OCMD1, OCM-E1, OCM-F1) of each exposure field (2) is located between a first edge (R1, S1, T1, U1, V1, Z1) and a row of lattice fields (3) of the exposure field (2) in question and a second control module field (OCM-A2, OCM-B2, OCM-D2, OCM-E2) is located between two rows of lattice fields (3) of the exposure field (2) in question, which are arranged adjacent to a second edge (R2, S1, U2, V2), and wherein both the first contr
Type:
Grant
Filed:
December 9, 2004
Date of Patent:
March 24, 2009
Assignee:
NXP B.V.
Inventor:
Heimo Scheucher