Patent ID: 9219108
Filing Date: 2015-12-22
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor substrate having a main surface; a first insulating layer formed on the main surface and having a first main surface, the first main surface including a first region and a second region without the first area; a first coil formed on the first region of the first insulating layer; a plurality of first wirings formed on the second region of the first insulating layer; a second insulating layer formed on the first coil and on the first wirings, the second insulating layer having a second main surface; a third insulating layer formed on the second main surface above the first region of the first insulating layer and having a third main surface; a second coil formed on the third main surface of the third insulating layer; a first electrode pad formed on the third main surface of the third insulating layer and being electrically and mechanically connected with the second coil; and a second electrode pad formed on the second main surface of the second insulating film above the second region of the first insulating layer and being electrically connected with the first wirings, wherein a thickness from the second main surface of the second insulating layer to the third main surface of the third insulating layer is greater than a thickness from the first main surface of the first insulating layer to the second main surface of the second insulating layer in a first direction perpendicular to a second direction along the first main surface in a cross section view.