Abstract:
A FILM OF A POLYCRYSTALLINE MATERIAL IS DEPOSITED PYROLYTICALLY ON AN ELECTRICALLY INSULATING SURFACE OF A SUBSTRATE. BY CONTROLLING THE RATE OF DEPOSITION OF THE MATERIAL ON THE SUBSTRATE AND THE TEMPERATURE OF THE SUBSTRATE, THE GRAIN SIZE OF THE POLYCRYSTALLINE FILM IS REGULATED SO THAT PN JUNCTIONS HAVING A SHARP REVERSE BIASED BREAKDOWN MAY BE FORMED THEREIN.
Abstract:
Sealing and stress relief are provided to a low-fracture strength glass-ceramic substrate. Hermeticity is addressed through the use of capture pads in alignment with vias and through polymeric overlayers with interconnection between the underlying via or pad metallurgy and the device, chip, wire or pin bonded to the surface of the layer. Multilevel structures are taught along with a self-aligned sealing and wiring process.
Abstract:
A method of fabricating a multilayer ceramic substrate with an internal conductive metallurgy circuit network, wherein additional green sheet material (36) is added to the stack (30) of ceramic green sheets during assembly to areas of the substrate outside of the conductive metallurgy to compensate for the volume of conductive metal paste and to thereby eliminate or minimize substrate distortion during the sintering operation.
Abstract:
Process For Minimizing Distortion In Multilayer Ceramic Substrates A method of fabricating a multilayer ceramic substrate with an internal conductive metallurgy circuit network, wherein additional green sheet material is added to the stack of ceramic green sheets during assembly to areas of the substrate outside of the conductive metallurgy to compensate for the volume of conductive metal paste to thereby eliminate or minimize substrate distortion during the sintering operation. FI9-85-002
Abstract:
A method of fabricating a multilayer ceramic substrate with an internal conductive metallurgy circuit network, wherein additional green sheet material (36) is added to the stack (30) of ceramic green sheets during assembly to areas of the substrate outside of the conductive metallurgy to compensate for the volume of conductive metal paste and to thereby eliminate or minimize substrate distortion during the sintering operation.