Embedded toroidal transformers in ceramic substrates

H - Electricity – 01 – F

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H01F 5/00 (2006.01) H01F 7/06 (2006.01) H01F 27/28 (2006.01)

Patent

CA 2560697

Method for forming a transformer (118) in a ceramic substrate. The method can include the steps of forming at least one conductive coil (119a, 119b) comprising a plurality of turns about an unfired ceramic toroidal core region (120a, 120b) defined within an unfired ceramic substrate (100). The method can also include the step of co-firing the unfired ceramic toroidal core region (120a, 120b), the unfired ceramic substrate (100), and the conductive coil (119a, 119b) to form an integral ceramic substrate structure with the conductive coil at least partially embedded therein.

La présente invention concerne un procédé de formation d'un transformateur (118) dans un substrat en céramique. Le procédé peut comprendre les étapes suivantes: la formation d'au moins un enroulement conducteur (119a, 119b) comprenant une pluralité de spires autour d'une région (120a, 120b) de noyau toroïdal en céramique non soumis à l'action des flammes définie dans un substrat (100) en céramique non soumis à l'action des flammes. Le procédé peut également inclure une étape qui consiste à cocuire la région de noyau toroïdal en céramique non soumis à l'action des flammes (120a, 120b), le substrat (100) en céramique non soumis à l'action des flammes et l'enroulement conducteur (119a, 119b) pour former une structure de substrat en céramique monobloc dans laquelle l'enroulement conducteur est au moins partiellement noyé.

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