The Zero Profile 7056 Glass Viewport from MDC Precision is engineered for compact optical access in high and ultra-high vacuum (UHV) systems. Designed with a minimal height footprint, it’s ideal for space-constrained chambers or systems requiring flush-mount viewing windows.

Constructed using Corning 7056 glass, known for its thermal expansion compatibility with Kovar, this viewport offers excellent structural stability during thermal cycling and bake-outs. The Kovar sleeve enables a strong and vacuum-tight seal through advanced brazing techniques, ensuring reliable performance in demanding applications.

Available with ConFlat-style or Kwik-Flange™ ISO KF mounting styles, the viewport supports easy integration into a variety of vacuum systems while maintaining low outgassing and high vacuum compatibility.

Industry Applications

Zero Profile 7056 Glass Viewports are ideally suited for semiconductor processing, surface science, beamline systems, plasma chambers, and thin-film deposition tools where space is limited and optical access is essential. The compact profile allows flush integration, minimizing equipment interference while providing high-transmission visibility into vacuum processes.