摘要:
Method of manufacture of a composite wiring structure for use with at least one semiconductor device, the structure having a first conductive member upon which the semiconductor device can be mounted for electrical connection thereto. A dielectric member, made of ceramic or organo-ceramic composite material, is bonded to the first conductive member and contains embedded therein a conductive network and a thermal distribution network. A second conductive member may be incorporated with the composite wiring structure, with a capacitor electrically connected between the conductive network and the second conductive member. Bonding between the dielectric member and the conductive members may be in the form of a direct covalent bond formed at a temperature insufficient to adversely effect the structural integrity of the conductive network and the thermal distribution network.
摘要:
The invention provides methods to manufacture dense, complex c-axis oriented ceramic oxide layers with thickness greater than 2.5 microns (.mu.m) on a metallic substrate (composites) without the use of an interfacial barrier, buffer, or surface layer using a metalorganic deposition process and thermomechanical reaction treatments is disclosed. A porous amorphous metal oxide ceramic deposit is formed directly on the substrate by spray pyrolyzing a mixed metalorganic precursor solution onto the metallic substrate. The metallic substrate has been previously heated to temperatures greater than the boiling point of the organic solvent and are high enough to initiate in situ decomposition of the metalorganic precursor salts. The process does not apply the precursor solution to the substrate as a liquid coating that is pyrolyzed in subsequent processing steps. The resultant porous amorphous oxide deposit is processed into a dense amorphous ceramic, or a fully crystallized c-axis oriented ceramic through a series of mechanical compression and short reaction treatments that are used to crystallize the amorphous ceramic layer. The inventive method applies to making complex ceramic oxides including superconducting compositions of bismuth cuprate ceramic, piezoelectric or insulating compositions. The composites so produced are useful in devices that include ceramic sputtering targets, heat shields, electrically conducting wires, magnetic solenoids, electromagnetic shielding, and energy storage devices. The invention also provides the ceramic-metal composites so made.
摘要:
A power management module, provides an inductor including one or more electrical conductors disposed around a ferromagnetic ceramic element including one or more metal oxides having fluctuations in metal-oxide compositional uniformity less than or equal to 1.50 mol % throughout the ceramic element.