Light-emitting dies incorporating wavelength-conversion materials and related methods
In accordance with certain embodiments, electronic devices feature a polymeric binder, a frame defining an aperture therethrough, and a semiconductor die (e.g., light-emitting or a light-detecting element) suspended in the binder and within the aperture of the frame.
1. An electronic device comprising:
a plurality of light-emitting elements, each light-emitting element comprising a first bottom surface and a pair of contact pads disposed on the first bottom surface;
a polymeric binder covering the plurality of light-emitting elements, exposing the pair of contact pads, and comprising a flat top surface and a second bottom surface;
a plurality of contact layers connected to the pair of contact pads and the second bottom surface;
an insulating layer disposed under the first bottom surface and connected to the plurality of contact layers; and
a plurality of contacts disposed under the insulating layer and electrically connected to the plurality of contact layers.
2. The electronic device of claim 1 , wherein adjacent contact layers of the plurality of contact layers are separated by a first distance, adjacent contacts of the plurality of contacts are separated by a second distance, the second distance is larger than the first distance.
3. The electronic device of claim 1 , wherein a portion of the insulating layer is exposed from the plurality of contacts.
4. The electronic device of claim 1 , wherein the insulating layer and the contact pads are spatially separated from each other.
5. The electronic device of claim 1 , wherein the polymeric binder is wider than the light-emitting element in a lateral dimension.
6. The electronic device of claim 1 , wherein all of the contact pads are covered by the plurality of contact layers.
7. The electronic device of claim 1 , wherein at least one of the plurality of contact layers has a thickness of about 10 nm to 50 μm.
8. The electronic device of claim 1 , wherein the insulating layer and the plurality of light-emitting elements are overlapped with each other.
9. The electronic device of claim 1 , wherein the plurality of contact layers is larger than the plurality of contacts in quantity.
10. The electronic device of claim 1 , wherein the plurality of light-emitting elements emits two or more lights with different wavelengths.
11. The electronic device of claim 1 , wherein the plurality of light-emitting elements emits lights including blue light, green light, and red light.
12. The electronic device of claim 1 , wherein at least one of the plurality of contacts has a varying thickness.
13. The electronic device of claim 1 , wherein the plurality of contacts has a first thickness which is under the light-emitting element, and a second thickness which is not under the light-emitting element, and the second thickness is larger than the first thickness.