Layouts for interlevel crack prevention in fluxgate technology manufacturing
Abstract:
An integrated fluxgate device includes a substrate that includes a dielectric layer. A fluxgate core is located over the dielectric layer. Lower windings are disposed in a lower metal level between the fluxgate core and the dielectric layer, and upper windings are disposed in an upper metal level above the fluxgate core. A metal structure in the upper metal level or the lower metal level overlaps an end of the fluxgate core and is conductively isolated from the upper and lower windings.
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