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US 2013/0256012 A1Published application
Wiring substrate and method of manufacturing the same
AssigneeShinko Electric Industries Co., Ltd.
InventorKotaro Kodani
Life of this patent
Estimating the term…
Abstract
There is provided a wiring substrate. The wiring substrate includes: an insulating layer; first electrode pads having first exposed surfaces, the first exposed surfaces being exposed from the insulating layer; and second electrode pads having second exposed surfaces, the second exposed surfaces being exposed from the insulating layer. There is a level difference between the first exposed surfaces and the second exposed surfaces.
Claims8
A wiring substrate comprising:
- an insulating layer having an insulating layer surface which defines an outer surface of the wiring substrate;
- a first electrode pad embedded in the insulating layer and having a first exposed surface which is exposed from the insulating layer at the insulating layer surface;
- a first opposite surface opposite to the first exposed surface;
- and a first side surface between the first exposed surface and the first opposite surface, wherein the first opposite surface and the first side surface are covered by the insulating layer;
- and
- a second electrode pad embedded in the insulating layer and having a second exposed surface which is exposed from the insulating layer at the insulating layer surface;
- a second opposite surface opposite to the second exposed surface;
- and a second side surface between the second exposed surface and the second opposite surface, wherein the second opposite surface and the second side surface are covered by the insulating layer,
- wherein
- a distance between the first exposed surface and the insulating layer surface is different from a distance between the second exposed surface and the insulating layer surface,
- a distance between the first opposite surface and the insulating layer surface is different from a distance between the second opposite surface and the insulating layer surface, and
- a material of the first exposed surface is different from that of the second exposed surface.
9 more elements
Dependencies are inferred from the claim text.