Hewlett-packard Company

Other

John T Anderson

V K Nagesh

Richard C Ruby

A method and apparatus for stretching and mounting a screen printing screen or mesh that separates the tensioning of the screen/mesh into two independent directions with the screen/mesh attached to two separate independent frames. The outer frame has two ends perpendicular to a print direction for attaching to ends of a screen mesh. The outer frame is placed outside of the inner frame, and supports the screen/mesh tensioned in the print direction of movement, with a high level of tension. The inner frame has two sides parallel to a print direction for attaching to the sides of the screen/mesh. The sides of the inner frame can apply tension, when applicable, to the screen/mesh, at a significantly lower tension level in the non-print direction, can act as, or provide a fixing point for barriers to stop the leakage or loss of the print medium or ink from the screen.

Method and apparatus for stretching and mounting a screen printing screen

A method for making metal/ceramic superconductor thick film structures including the steps of preparing a silver/superconductor ink, applying the ink to a substrate, evaporating the ink's binder, decomposing a silver compound in the residue to coat the superconductor grains, sintering the coated superconductor grains, and oxygenating the superconductor grains through the silver coating. The resultant inter-granular silver increases the critical current and mechanical strength of the superconductor.

Silver additives for ceramic superconductors

A process is disclosed for producing superconductor films on a variety of substrates, and more particularly a patterned superconductor film on a planar substrate. The basic process includes the steps of: 1) depositing a metal film of superconductor precursor elements on a substrate; 2) patterning the metal film; and 3) oxidizing the metal film to form a superconductor film. Because the process separates the metal precursor film formation, patterning, and oxidation steps, each of the steps can be individually optimized.

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Woodside, CA, United States of America

John T Anderson