公开(公告)号：US20220122871A1

公开(公告)日：2022-04-21

申请号：US17072082

申请日：2020-10-16

Applicant: APPLIED MATERIALS, INC.

Inventor： Yuichi WADA ,  Kok Wei TAN ,  Chul Nyoung LEE ,  Siew Kit HOI ,  Xinxin WANG ,  Zheng Min Clarence CHONG ,  Yaoying ZHONG ,  Kok Seong TEO

IPC: H01L21/683 ,  C23C4/134 ,  C23C14/34 ,  H01J37/32

Abstract: Methods and apparatus for protecting parts of a process chamber from thermal cycling effects of deposited materials. In some embodiments, a method of protecting the part of the process chamber includes wet etching the part with a weak alkali or acid, cleaning the part by bead blasting, coating at least a portion of a surface of the part with a stress relief layer. The stress relief layer forms a continuous layer that is approximately 50 microns to approximately 250 microns thick and is configured to preserve a structural integrity of the part from the thermal cycling of aluminum deposited on the part. The method may also include wet cleaning of the part with a heated deionized water rinse after formation of the stress relief layer.

公开(公告)号：US20210335582A1

公开(公告)日：2021-10-28

申请号：US16857828

申请日：2020-04-24

Applicant: APPLIED MATERIALS, INC.

Inventor： Yueh Sheng OW ,  Yuichi WADA ,  Junqi WEI ,  Kang ZHANG ,  Ananthkrishna JUPUDI ,  Sarath BABU ,  Kok Seong TEO ,  Kok Wei TAN

IPC: H01J37/32 ,  H01L21/67

Abstract: Apparatus and methods use a unique process kit to protect a processing volume of a process chamber. The process kit includes a shield with a frame configured to be insertable into a shield and a foil liner composed of a metallic material that is attachable to the frame at specific points. The specific attachment points are spaced apart to produce an amount of flexibility based on a malleability of the metallic material. The amount of flexibility ranges from approximately 2.5 to approximately 4.5.