Patent ID: 8143595
Filing Date: 2012-03-27
Classification: H01J,H01L

Abstract:
1. An ion implanter, comprising: an implantation chamber, which is exhausted to vacuum and into which an ion beam is introduced; a holder provided in the implantation chamber, the holder holding substrates, to which an ion implantation is performed by irradiating the ion beam, on two columns of a first column and a second column in an X-direction; a holder driving unit, which sets the holder in a horizontal state and then positions the holder in a substrate exchange position, and which sets the holder in a standing state and then drives reciprocally the holder along the X-direction; first and second load lock mechanisms, which transfer the substrates between an atmosphere side and the implantation chamber; a first substrate carrying unit having a first arm and a second arm that are disposed adjacently, are each substantially straight rods, and are reciprocally rotated independently around a same center line, wherein the first arm carries at least one substrate from the first load lock mechanism to the first column of the holder in the substrate exchange position, and the second arm carries the substrate, carried by the first arm, from the first column of the holder in the substrate exchange position to the first load lock mechanism; and a second substrate carrying unit having a third arm and a fourth arm that are disposed adjacently, are each substantially straight rods, and are reciprocally rotated independently around a same center line, wherein the third arm carries at least one substrate from the second load lock mechanism to the second column of the holder in the substrate exchange position and the fourth arm carries the substrate, carried by the third arm, from the second column of the holder in the substrate exchange position to the second load lock mechanism.