Patent ID: 8729492

Claim:
A multiple-deflection blanker for charged particle beam lithography, the blanker comprising: a support structure; a first pair of electrodes mounted to the support structure, the electrodes in the first pair of electrodes spaced from each other and adapted to provide a first electric field between the electrodes of the first pair of electrodes; a second pair of electrodes mounted to the support structure and electrically isolated from the first pair of electrodes, the electrodes in the second pair of electrodes spaced from each other and adapted to provide a second electric field between the electrodes of the second pair of electrodes; at least a third pair of electrodes mounted to the support structure and electrically isolated from the second pair of electrodes, the electrodes in the third pair of electrodes spaced from each other and adapted to provide a third electric field between the electrodes of the third pair of electrodes; and a surface positioned to obstruct a charged particle beam passed through any one of the first electric field, the second electric field, and the third electric field.