US 7,521,157 B2
Cross-shaped sub-resolution assist feature
Charles H. Wallace, Portland, Oreg. (US); Swaminathan Sivakumar, Portland, Oreg. (US); and Shannon E. Daviess, Hillsboro, Oreg. (US)
Assigned to Intel Corporation, Santa Clara, Calif. (US)
Filed on Feb. 09, 2006, as Appl. No. 11/351,084.
Prior Publication US 2007/0184355 A1, Aug. 09, 2007
Int. Cl. G03F 1/00 (2006.01)
U.S. Cl. 430—5 19 Claims
OG exemplary drawing
 
1. A method comprising:
using a cross-shaped sub-resolution assist feature to print a semiconductor pattern; and
causing the sub-resolution assist feature to intersect a main feature to be printed.