Wafer bonding apparatus

Abstract

A wafer bonding apparatus of the present invention includes a first sample base configured to hold a first substrate; a second sample base configured to hold a second substrate to oppose to the first substrate; a load transferring section coupled to an outer edge portion of the first sample base and configured to support the first sample base to a first stage; and a drive unit configured to perform pressure bonding on the first substrate and the second substrate by driving the second sample base to the first stage. In the wafer bonding apparatus, it is possible to prevent that a load which is larger than a load applied on the outer edge portion of the first substrate is applied to the center of the first substrate, and to apply uniform load the first substrate and the second substrate, when pressure bonding is performed on the first substrate and the second substrate.

Dependencies are inferred from the claim text.