Abstract:
This disclosure provides systems, methods and apparatus for three-dimensional (3-D) through-glass via inductors. In one aspect, the through-glass via inductor includes a glass substrate with a first cavity, a second cavity, and at least two through-glass vias. The through-glass vias include metal bars that are connected by a metal trace. The metal bars and the metal trace define the inductor, and each cavity is at least partially filled with magnetic material. The magnetic material can include a plurality of particles having an average diameter of less than about 20 nm. The first cavity can be inside the inductor and the second cavity can be outside inductor. In some implementations, the first and the second cavity can be vias that extend only partially through the glass substrate.
Abstract:
The invention concerns a process for coating soft-magnetic powder, which comprises the step of treating the soft-magnetic powder with a solution containing: A) at least one inhibitor, which is a 5- to 12-membred heterocyclic compound con¬ taining at least one substituted or unsubstituted ring-nitrogen atom and at least one ring-carbon atom, wherein one ring atom is substituted with C 2 - C 28 alkyl, C 2 - C 28 alkenyl or C 2 - C 28 alkynyl; and optionally B) at least one inhibitor, which is a compound with general formula (I), wherein R 1 indicates C 2 - C 28 alkyl, C 2 - C 28 alkenyl or C 2 - C 28 alkynyl; R 2 and R 3 independently of each other indicate H, C 1 - C 6 alkyl, C 2 - C 6 alkenyl, C 1 - C 6 alkynyl, C 3 - C 7 cycloalkyl or C 6 - C 12 aryl. The invention further relates to a soft-magnetic powder containing inhibitors of class A) and class B), use of such powder as well as an electronic component comprising such powder.
Abstract:
The invention includes: powder preparation step of obtaining magnetic core powders by mixing, of magnetic powders with thermosetting resin powders in hot state; powder filling step of filling the obtained magnetic core powders into a die; a compaction step of compacting magnetic core powders; and compact heating step of heating, compacts to the elevated temperature state at which the thermosetting resin hardens after compaction.
Abstract:
A dust core includes a primary phase including soft magnetic particles, and a grain boundary phase formed between the soft magnetic particles. The grain boundary phase has a composite dispersed microstructure in which fine particles including a high-temperature softening material (nanoparticles of silica or alumina) are dispersed in a matrix of a low-temperature softening material (low-melting glass particles). The low-temperature material is made of a first inorganic oxide with a softening point lower than the annealing temperature of the soft magnetic particles. The high-temperature softening material is made of a second inorganic oxide with a softening point higher than the annealing temperature.
Abstract:
The present invention concerns a composite iron- based powder mix suitable for soft magnetic applications such as inductor cores. The present invention also concerns a method for producing a soft magnetic component and the component produced by the method.