CONTOURED SUPPORT GRID FOR HERMETICALLY SEALED THIN FILM APPLICATIONS

摘要

Systems and methods for manufacturing a vacuum device, such as an electron emitter, that includes a foil exit window placed over and joined to a support grid. In one particular method, the vacuum chamber of an election emitter has a thin foil forming an exit window at one end. The thin foil may be titanium or any suitable material and the foil will typically enlarge during a bonding process that attaches the foil to the support grid. In one manufacturing process, the support grid is provided with a surface that has contours, typically being smooth recessed surfaces, that the foil, once enlarged, can lie against as the vacuum pulls the foil against the grid.