Thin film transformer
First Claim
1. An integrated thin film transformer apparatus comprising:
- a substrate; and
a plurality of thin film transformers carried by said substrate and arranged adjacent to one another, each of said thin film transformers includinga first thin film coil consisting of a conductive material formed in a spiral pattern, said conductive material of said spiral pattern having turns which are spaced apart by gaps having a predetermined gap width,an insulation layer formed over said first thin film coil, anda second thin film coil over said insulation layer, said second thin film coil consisting of a conductive material formed in a spiral pattern, said conductive material of said spiral pattern of said second thin film coil having turns which are spaced apart by gaps having a predetermined gap width,wherein the distance between adjacent thin film transformers is less than or equal to said gap width of said first thin film coils and is additionally less than or equal to said gap width of said second thin film coils,wherein said first thin film coils of said thin film transformers are connected electrically to each other in parallel, andwherein said second thin film coils of said thin film transformers are connected electrically to each other in parallel.
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Accused Products
Abstract
A thin film transformer which is fabricated on a substrate includes first and second thin film coils. One of the coils includes either of at least two spiral shaped coil parts that are disposed below an insulation layer and either of at least two spiral shaped coil parts that are disposed above the insulation layer, the coil parts being connected through a connection hole in the insulation layer, with terminals for the coil being located outside the outer loops of the coil parts. The other of the coils includes other coil parts that are connected through a connection hole in the insulation layer, with terminals again being located outside the outer loops of the coil parts. With this configuration, the first and second thin film coils have terminals that are located outside of the outer loops of the coils. Side-by-side transformers whose primaries and secondaries are connected so as to form a single transformer are also disclosed.
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Citations
32 Claims
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1. An integrated thin film transformer apparatus comprising:
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a substrate; and a plurality of thin film transformers carried by said substrate and arranged adjacent to one another, each of said thin film transformers including a first thin film coil consisting of a conductive material formed in a spiral pattern, said conductive material of said spiral pattern having turns which are spaced apart by gaps having a predetermined gap width, an insulation layer formed over said first thin film coil, and a second thin film coil over said insulation layer, said second thin film coil consisting of a conductive material formed in a spiral pattern, said conductive material of said spiral pattern of said second thin film coil having turns which are spaced apart by gaps having a predetermined gap width, wherein the distance between adjacent thin film transformers is less than or equal to said gap width of said first thin film coils and is additionally less than or equal to said gap width of said second thin film coils, wherein said first thin film coils of said thin film transformers are connected electrically to each other in parallel, and wherein said second thin film coils of said thin film transformers are connected electrically to each other in parallel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An integrated thin film transformer apparatus having a primary winding and a secondary winding, comprising:
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a substrate; and a plurality of individual thin film transformers which are arranged adjacent to one another on the substrate, each individual thin film transformer having a primary winding which includes a first thin film coil and having a secondary winding which includes a second thin film coil, all of the first thin film coils being disposed in a first plane and all of the second thin film coils being disposed in a second plane which is parallel to the first plane, wherein the primary windings of the individual thin film transformers are electrically connected to each other in parallel to form the primary winding of the integrated thin film transformer apparatus and the secondary windings of the individual thin film transformers are electrically connected to each other in parallel to form the secondary winding of the integrated thin film transformer apparatus. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification