Patent ID: 9305784
Filing Date: 2016-04-05
CPC Classification: H01J,H01L

Claim Text:
1. An ion implantation method using an ion implantation apparatus, the method comprising: conveying ions generated in an ion source to a wafer as an ion beam to implant ions to the wafer; performing a reciprocating scanning using the ion beam in a scanning direction of an uniaxial direction in the middle of the conveyance, the scanned ion beam being configured to be deflected so as to be parallelized in the same direction, and the wafer being configured to be moved to a direction orthogonal to the scanning direction of the ion beam; and setting two types of in-plane regions on a wafer plane, wherein the two types of in-plane regions are alternately arranged at least once in a direction orthogonal to the scanning direction of the ion beam, wherein one of the two types represents full-width non-ion-implantation regions into which ions are not implanted over entire widths of the in-plane regions, and the other type of the two types represents partial ion implantation regions comprising first regions with ions implanted and second regions with no ions implanted, the first and second regions being alternately repeated in the scanning direction of the ion beam, and wherein, in each of the two types of the in-plane regions, ions are implanted only into predetermined regions within the wafer plane and ions are not implanted in regions other than the predetermined regions by performing ion implantation processes under different conditions.