Importance

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Abstract

A method of making a microelectronic package includes providing a sacrificial layer having a first surface and providing an optoelectronic element having a front face including one or more contacts and a rear surface and securing the rear surface of the optoelectronic element over the first surface of the sacrificial layer. The one or more contacts are then electrically interconnected with one or more conductive pads on the sacrificial layer and a curable and at least partially transparent encapsulant is provided over the first surface of the sacrificial layer so as to encapsulate the optoelectronic element and the conductive pads. The encapsulant is then cured the sacrificial layer is at least partially removed so as to leave said one or more conductive pads on a bottom surface of the encapsulant, the bottom surface of the encapsulant defining the bottom of the package. The optoelectronic element may include a light sensitive chip such as an ultraviolet-erasable programmable read-only memory (UV EPROM) or a light emitting chip, such as a light emitting diode (LED).

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First Claim