APPARATUS AND METHOD FOR SEMICONDUCTOR WAFER LEVELING, FORCE BALANCING AND CONTACT SENSING
First Claim
Patent Images
1. A wafer bonder apparatus, comprising:
- a lower chuck configured to support a first wafer;
an upper chuck configured to support a second wafer, wherein the second wafer is arranged opposite to the first wafer;
a process chamber formed between the upper chuck and the lower chuck;
three adjustment mechanisms arranged around a top lid spaced apart from each other and being located outside of the process chamber;
wherein each adjustment mechanism comprises;
a component for sensing contact to the upper chuck;
a component for adjusting the pre-load force of the upper chuck; and
a component for leveling the upper chuck.
1 Assignment
0 Petitions
Accused Products
Abstract
A wafer bonder apparatus, includes a lower chuck, an upper chuck, a process chamber and three adjustment mechanisms. The three adjustment mechanisms are arranged around a top lid spaced apart from each other and are located outside of the process chamber. Each adjustment mechanism includes a component for sensing contact to the upper chuck, a component for adjusting the pre-load force of the upper chuck, and a component for leveling the upper chuck.
4 Citations
25 Claims
-
1. A wafer bonder apparatus, comprising:
-
a lower chuck configured to support a first wafer; an upper chuck configured to support a second wafer, wherein the second wafer is arranged opposite to the first wafer; a process chamber formed between the upper chuck and the lower chuck; three adjustment mechanisms arranged around a top lid spaced apart from each other and being located outside of the process chamber; wherein each adjustment mechanism comprises; a component for sensing contact to the upper chuck; a component for adjusting the pre-load force of the upper chuck; and a component for leveling the upper chuck. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for wafer bonding, comprising:
-
providing a lower chuck configured to support a first wafer; providing an upper chuck configured to support a second wafer, wherein the second wafer is arranged opposite to the first wafer; providing a process chamber formed between the upper chuck and the lower chuck; providing three adjustment mechanisms arranged around a top lid at an angle of 120 degrees from each other and being located outside of the process chamber, wherein each adjustment mechanism comprises a component for sensing contact to the upper chuck, a component for adjusting the pre-load force of the upper chuck, and a component for leveling the upper chuck. - View Dependent Claims (20, 21)
-
-
22. A wafer bonder apparatus, comprising:
-
a lower chuck configured to support a first wafer; an upper chuck configured to support a second wafer, wherein the second wafer is arranged opposite to the first wafer; a process chamber formed between the upper chuck and the lower chuck; wherein the lower chuck comprises an electrostatic chuck. - View Dependent Claims (23, 24, 25)
-
Specification