公开(公告)号：US20190287758A1

公开(公告)日：2019-09-19

申请号：US15925739

申请日：2018-03-19

申请人： APPLIED MATERIALS, INC.

发明人： Yaoling PAN ,  Vijaykumar KRITHIVASAN ,  Shimin MAO ,  Kelvin CHAN ,  Michael D. WILLWERTH ,  Anantha SUBRAMANI ,  Ashish GOEL ,  Chih-shun LU ,  Philip Allan KRAUS ,  Patrick John TAE ,  Leonard TEDESCHI

IPC分类号： H01J37/244 ,  H01L21/67 ,  H01L41/047 ,  H01L41/053 ,  H01L41/31 ,  H01L41/29 ,  H01L41/04 ,  H01J37/32

摘要： Embodiments described herein include a resonant process monitor and methods of forming such a resonant process monitor. In an embodiment, the resonant process monitor includes a frame that has a first opening and a second opening. In an embodiment, a resonant body seals the first opening of the frame. In an embodiment, a first electrode on a first surface of the resonant body contacts the frame and a second electrode is on a second surface of the resonant body. Embodiments also include a back plate that seals the second opening of the frame. In an embodiment the back plate is mechanically coupled to the frame, and the resonant body, the back plate, and interior surfaces of the frame define a cavity.