Corner spoiler for improving profile uniformity
First Claim
1. A shadow frame for a processing chamber comprising:
- a rectangular shaped body having a rectangular opening therethrough, an inside edge and an outside edge; and
one or more corner spoilers coupled to a top surface of the rectangular shaped body at one or more corners of the rectangular shaped body and disposed within an area bounded by the inside edge and the outside edge of the rectangular shaped body, wherein the one or more corner spoilers comprises;
an L-shaped body fabricated from a dielectric material, wherein the L-shaped body is configured to change plasma distribution at a corner of a substrate in the processing chamber, and wherein the L-shaped body comprises;
a first leg has an end with an inside corner and an outside corner; and
a second leg has an end with an inside corner and an outside corner, wherein the first and second legs meet at an inside corner and an outside corner of the L-shaped body.
2 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure relates to a corner spoiler designed to decrease high deposition rates on corner regions of substrates by changing the gas flow. In one embodiment, a corner spoiler for a processing chamber includes an L-shaped body fabricated from a dielectric material, wherein the L-shaped body is configured to change plasma distribution at a corner of a substrate in the processing chamber. The L-shaped body includes a first and second leg, wherein the first and second legs meet at an inside corner of the L-shaped body. The length of the first or second leg is twice the distance defined between the first or second leg and the inside corner. In another embodiment, a shadow frame for a depositing chamber includes a rectangular shaped body having a rectangular opening therethrough, and one or more corner spoilers coupled to the rectangular shaped body at corners of the rectangular shaped body.
-
Citations
10 Claims
-
1. A shadow frame for a processing chamber comprising:
-
a rectangular shaped body having a rectangular opening therethrough, an inside edge and an outside edge; and one or more corner spoilers coupled to a top surface of the rectangular shaped body at one or more corners of the rectangular shaped body and disposed within an area bounded by the inside edge and the outside edge of the rectangular shaped body, wherein the one or more corner spoilers comprises; an L-shaped body fabricated from a dielectric material, wherein the L-shaped body is configured to change plasma distribution at a corner of a substrate in the processing chamber, and wherein the L-shaped body comprises; a first leg has an end with an inside corner and an outside corner; and a second leg has an end with an inside corner and an outside corner, wherein the first and second legs meet at an inside corner and an outside corner of the L-shaped body. - View Dependent Claims (2)
-
-
3. A processing chamber, comprising:
-
a substrate support disposed within the processing chamber, the substrate support having a substrate-receiving surface configured to support a substrate; a shadow frame disposed over a periphery of the substrate, the shadow frame having a rectangular shaped body having a rectangular opening therethrough, an inside edge and an outside edge; and one or more corner spoilers coupled to a top surface of the rectangular shaped body at one or more corners of the rectangular shaped body and disposed within an area bounded by the inside edge and the outside edge of the rectangular shaped body, each corner spoiler comprising; an L-shaped body fabricated from a dielectric material, wherein the L-shaped body is further configured to change plasma distribution at a corner of a substrate in the processing chamber, and wherein the L-shaped body comprises; a first leg has an end with an inside corner and an outside corner; and a second leg has an end with an inside corner and an outside corner, wherein the first and second legs meet at an inside corner and an outside corner of the L-shaped body, and wherein a distance between the inside corner and the outside corner of the end of the first leg is between about 35 mm and 55 mm and a distance between the inside corner and the outside corner of the end of the second leg is between about 35 mm and 55 mm. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
-
Specification