Semiconductor manufacturing apparatus component
By employing a plug structure with a tapered inner circumferential surface and a dense outer circumferential surface in components used in semiconductor manufacturing equipment, the problems of plug fixing strength and positioning accuracy are solved, achieving efficient discharge suppression and convenient plug replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NGK INSULATORS LTD
- Filing Date
- 2023-12-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing semiconductor manufacturing equipment, without the use of adhesives, it is difficult to guarantee the fixing strength and positioning accuracy of plugs, resulting in poor discharge suppression.
A ceramic plug with a conical inner circumferential surface and a dense outer circumferential surface is used. The plug is implanted into the substrate by direct fitting, which ensures the positioning accuracy of the plug at the specified height position and improves the fixing strength through friction.
It achieves high positioning accuracy and fixation strength of the plug without the use of adhesive, effectively suppresses discharge between the wafer and the substrate, and facilitates plug replacement.
Smart Images

Figure CN122423366A_ABST