Redistribution layer system in package
View Patent ↗A shielded electronic module is formed on a substrate. The substrate has a component area and one or more electronic components attached to the component area. One set of conductive pads may be attached to the component area and another set of conductive pads may be provided on the electronic component. The conductive pads on the component area are electrically coupled to the conductive pads of the electronic component by a conductive layer. A first insulating layer is provided over the component area and underneath the conductive layer that may insulate the electronic component and the substrate from the conductive layer. A second insulating layer is provided over the first insulating layer that covers at least the conductive layer. In this manner, the conductive layer is isolated from an electromagnetic shield formed over the component area.
1. An electronic module, comprising:
a substrate having a component area on a surface of the substrate, wherein the component area includes a first conductive pad;
an electronic component on the component area, wherein the electronic component includes a second conductive pad;
a first insulating layer formed over the component area, wherein at least a first section of the first conductive pad and at least a second section of the second conductive pad are uncovered by the first insulating layer;
a conductive layer formed over the first insulating layer and being attached to at least the first section of the first conductive pad and at least to the second section of the second conductive pad such that the conductive layer electrically couples the first conductive pad to the second conductive pad, wherein the conductive layer conforms to at least one segment of the first insulating layer;
a second insulating layer formed over the component area that at least covers the conductive layer; and
an electromagnetic shield formed over the first insulating layer and the second insulating layer.
2. The electronic module of claim 1 , wherein the first insulating layer comprises a first dry film.
3. The electronic module of claim 2 , wherein the second insulating layer comprises a second dry film.
4. The electronic module of claim 1 , wherein the electronic component and the first conductive pad are positioned adjacent to one another on the component area.
5. The electronic module of claim 1 , wherein the substrate further comprises a grounding element positioned along a periphery of the component area.
6. The electronic module of claim 5 , wherein the electromagnetic shield is attached to the grounding element.
7. The electronic module of claim 1 , wherein the second insulating layer comprises an overmold.
8. The electronic module of claim 7 , further comprising:
the substrate having a substrate body and a metallic structure, the substrate body having a component portion that includes the component area on the surface of the substrate wherein the metallic structure extends along a periphery of the component portion;
the overmold covering the component area; and
the electromagnetic shield extending through the overmold along a periphery of the component portion and being attached to at least a section of the metallic structure.
9. The electronic module of claim 1 , further comprising a second electronic component on the component area, wherein the second electronic component has a third conductive pad.
10. The electronic module of claim 9 , wherein the conductive layer is formed to couple the third conductive pad to the first conductive pad.
11. The electronic module of claim 9 , wherein the substrate further comprises a fourth conductive pad on the component area, the conductive layer being formed to couple the third conductive pad to the fourth conductive pad.