Submounts for semiconductor light emitting devices and...

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – Encapsulated

Reexamination Certificate

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Details

C438S026000, C438S027000, C257SE33059

Reexamination Certificate

active

07834375

ABSTRACT:
A submount for mounting an LED chip includes a substrate, a die attach pad configured to receive an LED chip on an upper surface of the substrate, a first meniscus control feature on the substrate surrounding the die attach pad and defining a first encapsulant region of the upper surface of the substrate, and a second meniscus control feature on the substrate surrounding the first encapsulant region and defining a second encapsulant region of the upper surface of the substrate. The first and second meniscus control features may be substantially coplanar with the die attach pad. A packaged LED includes a submount as described above and further includes an LED chip on the die attach pad, a first encapsulant on the substrate within the first encapsulant region, and a second encapsulant on the substrate within the second encapsulant region and covering the first encapsulant. Method embodiments are also disclosed.

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