Abstract:
ARRAYS OF CONDUCTORS ACCURATELY FIXED IN POSITION RELATIVE TO EACH OTHER ARE MADE BY LAYING STRIPES OF CONDUCTIVE MATERIAL, SUCH AS THIN STRIPES OF CHROMIUM, GOLD OR PLATINUM GROUP METALS, ON A SURFACE OF EACH OF A NUMBER OF PLATES OF DIELECTRIC MATERIAL, SUCH AS GLASS, THAT SOFTENS WHEN HEATED AND THAT FUSES TO SIMILAR MATERIAL AT THE SOFTENING POINT. THE PLATES AR STACKED, PLACED UNDER COMPRESSION NORMAL TO THEIR CONDUCTOR BEARING SURFACES IN A PARTIAL VACUUM AND HEATED TO THE SOFTENING POINT, THE VACUUM IS THEN RELIEVED AND THE HEAT TURNED OFF. AFTER THE STACK COOLS BELOW THE SOFTENING POINT, THE FUSED STACK IS SLICED AT AN ANGLE TO THE LENGTHS OF THE CONDUCTORS TO PORIVIDE PLATES HAVING CONDUCTOR ARRAYS THERETHROUGH.
Abstract:
A METHOD OF CONSTRUCTING A FACEPLATE IS DESCRIBED, WHICH CONTAINS A MULTITUDE OF CLOSELY SPACED, DISCRETE, CONDUCTIVE ELEMENTS TO PERMIT PASSAGE OF ELECTRICAL SIGNALS FROM ONE SIDE OF THE FACEPLATE TO THE OTHER. THE FACEPLATE IS COMPLETELY IMPERMEABLE TO GASES. THIS METHOD COMPRISES PLACING A METAL BAR PATTERN ON RIBBON GLASS, CUTTING AND STACKING SHEETS OF THE GLASS, AND SUBJECTING THE STACK TO HEAT AND PRESSURE. THE METHOD OF CONSTRUCTION PERMITS THE READY PLACEMENT OF A LARGE NUMBER OF CLOSELY SPACED DISCRETE CONDUCTING PATHS TRANSVERSELY THROUGH THE FACEPLATE MAKING POSSIBLE TWO-DIMENSIONAL ARRAYS OF 500 OR MORE ELEMENTS PER INCH.
Abstract:
A substrate includes a first dielectric layer having a first surface and a second surface. The first dielectric layer includes a plurality of first conductive vias and a plurality of second conductive vias. These two kinds of conductive vias are formed to penetrate the first dielectric layer and have different orientations for reduce warpage of the substrate.