公开(公告)号：US20240290637A1

公开(公告)日：2024-08-29

申请号：US18237547

申请日：2023-08-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minseon Kim ,  Donghoon Kwon

IPC: H01L21/67 ,  A46B13/00 ,  A46B13/02

CPC classification number: H01L21/67046 ,  A46B13/001 ,  A46B13/008 ,  A46B13/02 ,  A46B2200/3073

Abstract: A brush assembly includes a first brush including a first body that is cylindrical, and a first vertical gear connected to a surface of the cylindrical first body that faces a third body, the first vertical gear being configured to rotate in a first vertical direction, a second brush including a first horizontal gear configured to rotate in a first horizontal direction and a second body connected to a lower portion of the first horizontal gear and rotatably connected to the first body, and a third brush including a second vertical gear connected to a surface of the third body that faces the first body, the second vertical gear being configured to rotate in a second vertical direction that is opposite to the first vertical direction, where the first horizontal gear is engaged with a lower portion of the first vertical gear.