Integrated circuit packaging for implantable medical devices
First Claim
1. A hybrid integrated circuit formed in a wafer level package for an implantable medical device, the wafer level package comprising a polymer component layer overlaid by a plurality of routing layers, and the integrated circuit comprising:
- a plurality of active devices and passive components embedded in the component layer;
another passive component including a winding, at least a portion of the winding being formed along one or more of the plurality of routing layers; and
a plurality of conductive runners extending along the plurality of routing layers, each runner being electrically coupled to a corresponding one or more of the embedded devices and components;
wherein at least one of the conductive runners is electrically coupled to the other passive component and is located on a common routing layer with the winding, wherein;
the other passive component comprises a transformer such that the winding is a primary winding of the transformer and the transformer further comprises one or more secondary windings, the one or more secondary windings being formed along one or more of the plurality of routing layers;
the wafer level package further comprises a planar magnetic core of the transformer, the planar magnetic core comprising a first part and a second part;
the first part of the planar magnetic core is embedded in the component layer; and
the second part of the core is bonded to a surface of the wafer level package, the surface overlaying the plurality of routing layers, such that the routing layers are sandwiched between the component layer and the second part of the core.
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Accused Products
Abstract
A hybrid integrated circuit in a wafer level package for an implantable medical device includes one or more passive component windings formed, at least in part, along one or more routing layers of the package. The windings may be primary and secondary windings of a transformer, wherein all or part of a magnetic core thereof is embedded in a component layer of the wafer level package. If the core includes a part bonded to a surface of the package, that part of the core may be E-shaped with legs extending into the routing layers, and, in some cases, through the routing layers. Routing layers may be formed on both sides of the component layer to accommodate the transformer windings, in some instances.
100 Citations
10 Claims
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1. A hybrid integrated circuit formed in a wafer level package for an implantable medical device, the wafer level package comprising a polymer component layer overlaid by a plurality of routing layers, and the integrated circuit comprising:
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a plurality of active devices and passive components embedded in the component layer; another passive component including a winding, at least a portion of the winding being formed along one or more of the plurality of routing layers; and a plurality of conductive runners extending along the plurality of routing layers, each runner being electrically coupled to a corresponding one or more of the embedded devices and components; wherein at least one of the conductive runners is electrically coupled to the other passive component and is located on a common routing layer with the winding, wherein; the other passive component comprises a transformer such that the winding is a primary winding of the transformer and the transformer further comprises one or more secondary windings, the one or more secondary windings being formed along one or more of the plurality of routing layers; the wafer level package further comprises a planar magnetic core of the transformer, the planar magnetic core comprising a first part and a second part; the first part of the planar magnetic core is embedded in the component layer; and the second part of the core is bonded to a surface of the wafer level package, the surface overlaying the plurality of routing layers, such that the routing layers are sandwiched between the component layer and the second part of the core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification