Wafer holder for wafer prober and wafer prober equipped with the same
AssigneeSumitomo Electric Industries, Ltd.
InventorsMasuhiro Natsuhara, Katsuhiro Itakura, Hirohiko Nakata
Life of this patent
Estimating the term…
Abstract
The invention provides a wafer-prober wafer holder that allows positional precision and temperature uniformity to be increased, and also allows the chip to be heated and cooled rapidly, and a wafer prober device provided with the same. The wafer-prober wafer holder of the invention is constituted by a chuck top having a chuck top conducting layer on its surface, and a support member for supporting the chuck top, and has a cavity in a portion between the chuck top and the support member. The chuck top preferably is provided with a heating member.
Claims49
A wafer-prober wafer holder comprising a chuck top having a chuck-top conducting layer on its front side, and a support member for supporting the chuck top, characterized in having a cavity in a portion between the chuck top and the support member.
Dependencies are inferred from the claim text.