公开(公告)号：US20190122867A1

公开(公告)日：2019-04-25

申请号：US15991500

申请日：2018-05-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Ki Nam ,  Sunggil Kang ,  Sungyong Lim ,  Beomjin Yoo ,  Akira Koshiishi ,  Vasily Pashkovskiy ,  Kwangyoub Heo

IPC: H01J37/32 ,  H01J1/02

Abstract: A hollow cathode includes an insulation plate having cathode holes. Bottom electrodes are below the insulation plate. The bottom electrodes define first holes having a width greater than a width of the cathode holes. Top electrodes are at an opposite side of the insulation plate from the bottom electrodes. The top electrodes define second holes aligned with the first holes along a direction orthogonal to the upper surface of the insulation plate.

公开(公告)号：US11798788B2

公开(公告)日：2023-10-24

申请号：US17091433

申请日：2020-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Ki Nam ,  Sunggil Kang ,  Sungyong Lim ,  Beomjin Yoo ,  Akira Koshiishi ,  Vasily Pashkovskiy ,  Kwangyoub Heo

IPC: H01L21/3065 ,  H01J37/32 ,  H01J1/02

CPC classification number: H01J37/32596 ,  H01J1/025 ,  H01J37/32009 ,  H01J37/32899

Abstract: A hollow cathode includes an insulation plate having cathode holes. Bottom electrodes are below the insulation plate. The bottom electrodes define first holes having a width greater than a width of the cathode holes. Top electrodes are at an opposite side of the insulation plate from the bottom electrodes. The top electrodes define second holes aligned with the first holes along a direction orthogonal to the upper surface of the insulation plate.

公开(公告)号：US10950414B2

公开(公告)日：2021-03-16

申请号：US15983178

申请日：2018-05-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Ki Nam ,  Akira Koshiishi ,  Kwangyoub Heo ,  Sunggil Kang ,  Beomjin Yoo ,  Sungyong Lim ,  Vasily Pashkovskiy

IPC: H01L21/00 ,  C23C16/00 ,  H01J37/32 ,  H01L21/66 ,  H01L21/3065 ,  H01L21/683

Abstract: Disclosed are a plasma processing apparatus and a method of manufacturing a semiconductor device using the same. The plasma processing apparatus comprises a chamber, an electrostatic chuck in the chamber and loading a substrate, a plasma electrode generating an upper plasma on the electrostatic chuck; and a hollow cathode between the plasma electrode and the electrostatic chuck, wherein the hollow cathode generates a lower plasma below the upper plasma. The hollow cathode comprises cathode holes each having a size less than a thickness of a plasma sheath of the upper plasma.

公开(公告)号：US10522332B2

公开(公告)日：2019-12-31

申请号：US16421433

申请日：2019-05-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeongkwang Lee ,  Sunggil Kang ,  Sang Ki Nam ,  Kwangyoub Heo ,  Kyuhee Han

IPC: H01J37/317 ,  H01J37/32 ,  H01L21/683

Abstract: A chamber has an upper housing and a lower housing and receives a reaction gas. A first plasma source includes electron beam sources providing electron beams into the upper housing to generate an upper plasma. A second plasma source includes holes generating a lower plasma within the holes connecting the upper housing and the lower housing. Radicals of the upper plasma, radicals of the lower plasma, and ions of the lower plasma are provided, through the holes, to the lower housing so that the lower housing has radicals and ions at a predetermined ratio of the ions to the radicals in concentration. The second plasma source divides the chamber into the upper housing and the lower housing. A wafer chuck is positioned in the lower housing to receive a wafer.

公开(公告)号：US10347468B2

公开(公告)日：2019-07-09

申请号：US15870800

申请日：2018-01-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yeongkwang Lee ,  Sunggil Kang ,  Sang Ki Nam ,  Kwangyoub Heo ,  Kyuhee Han

IPC: H01J37/32 ,  H01L21/683

Abstract: A chamber has an upper housing and a lower housing and receives a reaction gas. A first plasma source includes electron beam sources providing electron beams into the upper housing to generate an upper plasma. A second plasma source includes holes generating a lower plasma within the holes connecting the upper housing and the lower housing. Radicals of the upper plasma, radicals of the lower plasma, and ions of the lower plasma are provided, through the holes, to the lower housing so that the lower housing has radicals and ions at a predetermined ratio of the ions to the radicals in concentration. The second plasma source divides the chamber into the upper housing and the lower housing. A wafer chuck is positioned in the lower housing to receive a wafer.