Silicon Base Development Inc.

Ching-Chi Cheng

Chih-Ming Chen

Deng-Huei Hwang

An-Nong Wen

A package-base structure of a luminescent diode and its fabricating process. The package-base structure includes a substrate having thereon a holding space; an insulating layer extending from a bottom surface of the holding space to the bottom of the substrate; an through hole defined in the insulating layer; and a conductive layer disposed over the insulating layer. The insulating layer decouples the current flow and heat flow to increase the lifetime of the package-base structure together with the luminescent diode. In the fabricating process, the insulating layer is formed by anodic etching to allow the insulating layer have a porous structure.

Package-base structure of luminescent diode

A package base structure of a light emitting device and associated manufacturing method is provided. The method includes steps of forming a first mask layer and a second mask layer on a first surface and a second surface of a substrate; defining a first opening and a second opening on the first mask layer and the second mask layer wherein the first opening is larger than the second opening; etching the substrate to form the package base structure having a holding space and at least two through holes. The upper opening of the holding space is located on the first surface of the substrate, and the bottom of the holding space can support the light emitting device. The lower openings of the through holes are located on the second surface of the substrate, and the tops of the through holes reach the bottom of the holding space. There is at least one slant structure at the contact between sidewalls of the through holes and the bottom of the holding space.

Package base structure and associated manufacturing method

A side-view optical diode package is mounted on a printed circuit board with at least a solder bump. The side-view optical diode package includes a silicon substrate, a holding space, a bonding surface and a positioning structure. The silicon substrate has a first surface and a second surface. The holding space has a top opening in the first surface and a bottom for holding an optical diode thereon. The bonding surface is disposed at a lateral side of the silicon substrate and bonded onto the printed circuit board. The positioning structure has at least a solder-receiving portion beside the bonding surface and corresponding to the solder bump. The solder bump is molten during a soldering process and received in the solder-receiving portion, thereby facilitating positioning the silicon substrate on the printed circuit board.

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Hsinchu, Taiwan

Ching-Chi Cheng