SEMICONDUCTOR DEVICE
First Claim
1. A semiconductor device comprising:
- a semiconductor chip which has a first surface, a first back surface on a side opposed to the first surface, and a plurality of electrodes arranged on the first surface; and
a wiring substrate which has a first main surface on which the semiconductor chip is mounted, a second main surface on a side opposed to the first main surface, a first wiring layer which is formed between the first main surface and the second main surface, and a second wiring layer which is formed between the first wiring layer and the second main surface and adjacent to the first wiring layer in a cross sectional view in a direction crossing the first main surface,wherein the first wiring layer hasa first wiring having a first main wiring unit extending in a first direction in a cross sectional view and a plurality of first sub-wiring units, extending in a second direction crossing the first direction and crossing the first main wiring unit, and the first wiring being supplied with a first potential,a second wiring having a second main wiring unit extending in the first direction in the cross sectional view and a plurality of second sub-wiring units, extending in the second direction and crossing the second main wiring unit, and the second wiring being supplied with a second potential different from the first potential,wherein the first sub-wiring units of the first wiring and the second sub-wiring units of the second wiringhave a first end unit and a second end unit on a side opposed to the first end unit through the first main wiring unit or the second main wiring unit in the second direction, andare alternately arranged along the first direction, between the first main wiring unit and the second main wiring unit,wherein the second wiring hasa first conductor pattern which overlaps with the second main wiring unit of the second wiring and the first end unit of the first sub-wiring units of the first wiring, and extends in the first direction, anda second conductor pattern which overlaps with the first main wiring unit of the first wiring and the second end unit of the second sub-wiring units of the second wiring,wherein the first end unit of the first sub-wiring units is electrically coupled with the first conductor pattern through a plurality of first vias, andwherein the second unit of the second sub-wiring units is electrically coupled with the second conductor pattern through a plurality of vias.
1 Assignment
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Accused Products
Abstract
A semiconductor device has a wiring substrate on which a semiconductor chip is mounted. A wiring layer of the wiring substrate has a wiring. This wiring has a main wiring unit extending in a direction “X” and a plurality of sub-wiring units extending in a direction “Y”, in a cross sectional view, and is supplied with a power source potential. The wiring layer has a wiring. This wiring has a main wiring unit extending in the direction “X” and a plurality of sub-wiring units extending in the direction “Y”, in a cross sectional view, and is supplied with a reference potential. The sub-wiring units and the sub-wiring units have end units and end units on a side opposed to the end units, and are alternately arranged along the direction “X” between the main wiring units. To the end units, via wirings are coupled.
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Citations
18 Claims
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1. A semiconductor device comprising:
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a semiconductor chip which has a first surface, a first back surface on a side opposed to the first surface, and a plurality of electrodes arranged on the first surface; and a wiring substrate which has a first main surface on which the semiconductor chip is mounted, a second main surface on a side opposed to the first main surface, a first wiring layer which is formed between the first main surface and the second main surface, and a second wiring layer which is formed between the first wiring layer and the second main surface and adjacent to the first wiring layer in a cross sectional view in a direction crossing the first main surface, wherein the first wiring layer has a first wiring having a first main wiring unit extending in a first direction in a cross sectional view and a plurality of first sub-wiring units, extending in a second direction crossing the first direction and crossing the first main wiring unit, and the first wiring being supplied with a first potential, a second wiring having a second main wiring unit extending in the first direction in the cross sectional view and a plurality of second sub-wiring units, extending in the second direction and crossing the second main wiring unit, and the second wiring being supplied with a second potential different from the first potential, wherein the first sub-wiring units of the first wiring and the second sub-wiring units of the second wiring have a first end unit and a second end unit on a side opposed to the first end unit through the first main wiring unit or the second main wiring unit in the second direction, and are alternately arranged along the first direction, between the first main wiring unit and the second main wiring unit, wherein the second wiring has a first conductor pattern which overlaps with the second main wiring unit of the second wiring and the first end unit of the first sub-wiring units of the first wiring, and extends in the first direction, and a second conductor pattern which overlaps with the first main wiring unit of the first wiring and the second end unit of the second sub-wiring units of the second wiring, wherein the first end unit of the first sub-wiring units is electrically coupled with the first conductor pattern through a plurality of first vias, and wherein the second unit of the second sub-wiring units is electrically coupled with the second conductor pattern through a plurality of vias. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification