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SUBSTRATE STRUCTURE AND SEMICONDUCTOR PACKAGE STRUCTURE

[Category : - ELECTRONICS]
[Viewed 276 times]

A substrate structure includes a substrate body, a bottom circuit layer, a first bottom protection structure and a second bottom protection structure. The substrate body has a top surface and a bottom surface opposite to the top surface. The bottom circuit layer is disposed adjacent to the bottom surface of the substrate body, and includes a plurality of pads. The first bottom protection structure is disposed on the bottom surface of the substrate body, and covers a portion of the bottom circuit layer. The second bottom protection structure is disposed on the bottom surface of the substrate body, and covers a portion of the bottom circuit layer. A second thickness of the second bottom protection structure is greater than a first thickness of the first bottom protection structure.

Patent publications:

US 11107777

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rayfw (Taiwan)

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