Stress control in magnetic inductor stacks

A magnetic laminating structure and process for preventing substrate bowing include a first magnetic layer, at least one additional magnetic layer, and a dielectric spacer disposed between the first and at least one additional magnetic layers. The magnetic layers are characterized by defined tensile...

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Main Authors Wang, Naigang, Deligianni, Hariklia, Doris, Bruce B, O'Sullivan, Eugene J
Format Patent
LanguageEnglish
Published 20.10.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Abstract A magnetic laminating structure and process for preventing substrate bowing include a first magnetic layer, at least one additional magnetic layer, and a dielectric spacer disposed between the first and at least one additional magnetic layers. The magnetic layers are characterized by defined tensile strength. To balance the tensile strength of the magnetic layer, the dielectric layer is selected to provide compressive strength so as to counteract the tendency of the wafer to bow as a consequence of the tensile strength imparted by the magnetic layer(s).
AbstractList A magnetic laminating structure and process for preventing substrate bowing include a first magnetic layer, at least one additional magnetic layer, and a dielectric spacer disposed between the first and at least one additional magnetic layers. The magnetic layers are characterized by defined tensile strength. To balance the tensile strength of the magnetic layer, the dielectric layer is selected to provide compressive strength so as to counteract the tendency of the wafer to bow as a consequence of the tensile strength imparted by the magnetic layer(s).
Author Deligianni, Hariklia
Wang, Naigang
O'Sullivan, Eugene J
Doris, Bruce B
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Snippet A magnetic laminating structure and process for preventing substrate bowing include a first magnetic layer, at least one additional magnetic layer, and a...
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SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
Title Stress control in magnetic inductor stacks
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