Vacuum Valve Linkage for Low-Particle Long-Cycle Sealing

The patent replaces traditional mechanical valve mechanisms with an electrostatically actuated membrane valve. The membrane is deflect ed by electrostatic forces from electrodes, eliminating sliding or rotating mechanical contacts that generate particles through friction and wear. This substitution of mechanical actuation with electrostatic actuation directly resolves the contradiction by removing the source of particle generation while maintaining vacuum sealing capability.

The patent employs a flexible membrane as the valve closing element. This thin film structure can be deflected by electrostatic forces to seal or open the vacuum pathway without requiring mechanical joints or contacts. The membrane's flexibility allows it to conform to sealing surfaces while being actuated electrically, thereby avoiding particle generation from mechanical friction and significantly extending the valve's operational cycle life.

The patent replaces multiple mechanical moving parts with a single electrostatically actuated membrane system. The membrane is controlled by electrodes that apply electrostatic pressure to deflect the membrane for sealing. This eliminates mechanical friction and wear between multiple moving parts, ensuring consistent sealing performance over extended operational cycles without generating particles from component interaction.

The flexible membrane serves as the primary sealing element, replacing rigid mechanical components with multiple moving parts. The membrane can be precisely controlled by electrostatic actuation to achieve consistent sealing force without the friction and wear that would compromise reliability and generate particles in traditional mechanical valve designs.

The patent replaces mechanical movement control mechanisms with electrostatic actuation of a membrane. The membrane's deflection is precisely controlled by the voltage applied to the electrodes, allowing for accurate positioning and consistent sealing quality. This electrostatic control system provides wear-free operation while maintaining or improving seal quality compared to mechanical systems with limited movement control.

The flexible membrane can be precisely controlled in its deflection by electrostatic forces, achieving the necessary sealing contact pressure without excessive movement. This allows the valve to maintain high seal quality while minimizing mechanical stress and wear, as the membrane simply deflects to the required position rather than requiring mechanical components to slide or rotate through extended travel distances.