Method of making a semiconductor device package with dummy gate
First Claim
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1. A semiconductor device package, comprising:
- a first substrate including a lower substrate surface and an upper substrate surface;
a conductive dummy gate structure disposed over the upper substrate surface;
an interconnect structure disposed over the conductive dummy gate structure, wherein the interconnect structure includes a plurality of metal layers disposed within a dielectric structure and wherein at least one of the metal layers is electrically coupled to the conductive dummy gate structure; and
a conductive through-substrate via extending from the lower substrate surface to an underside of the conductive dummy gate structure and being electrically coupled to the conductive dummy gate structure, wherein the conductive dummy gate structure covers an entire uppermost surface of the conductive through-substrate via.
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Abstract
A semiconductor device package includes a first substrate, which has a lower substrate surface and an upper substrate surface. A conductive dummy gate structure is disposed over the upper substrate surface. An interconnect structure is disposed over the conductive dummy gate structure. The interconnect structure includes a plurality of metal layers disposed within a dielectric structure and at least one of the metal layers is electrically coupled to the conductive dummy gate structure. A conductive through-substrate via extends from the lower substrate surface to an underside of the conductive dummy gate structure and is electrically coupled to the conductive dummy gate structure.
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Citations
20 Claims
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1. A semiconductor device package, comprising:
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a first substrate including a lower substrate surface and an upper substrate surface; a conductive dummy gate structure disposed over the upper substrate surface; an interconnect structure disposed over the conductive dummy gate structure, wherein the interconnect structure includes a plurality of metal layers disposed within a dielectric structure and wherein at least one of the metal layers is electrically coupled to the conductive dummy gate structure; and a conductive through-substrate via extending from the lower substrate surface to an underside of the conductive dummy gate structure and being electrically coupled to the conductive dummy gate structure, wherein the conductive dummy gate structure covers an entire uppermost surface of the conductive through-substrate via. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A semiconductor device package, comprising:
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a first semiconductor substrate including a lower substrate surface and an upper substrate surface, wherein one or more CMOS devices are disposed on the first semiconductor substrate; a conductive dummy gate structure disposed over the upper substrate surface; an interconnect structure disposed over the conductive dummy gate structure, wherein the interconnect structure includes a plurality of metal layers disposed within a dielectric structure and wherein at least one of the metal layers is electrically coupled to the conductive dummy gate structure; a second substrate disposed over the interconnect structure, wherein one or more MEMS devices are disposed on the second substrate and are coupled to the one or more CMOS devices through the interconnect structure; a conductive through-substrate via extending from the lower substrate surface to an underside of the conductive dummy gate structure and being electrically coupled to the conductive dummy gate structure; and one or more contact plugs arranged within a dielectric layer and extending between the conductive dummy gate structure and lower one of the plurality of metal layers that extends over the one or more contact plugs, wherein the one or more contact plugs and the dielectric layer completely separate the conductive through-substrate via from the lower one of the plurality of metal layers. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A semiconductor device package, comprising:
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a dielectric layer; a semiconductor substrate including a lower substrate surface and an upper substrate surface, the lower substrate surface in direct contact with the dielectric layer; a conductive dummy gate structure disposed over the upper substrate surface; an interconnect structure disposed over the conductive dummy gate structure, wherein the interconnect structure includes a plurality of metal layers disposed within a dielectric structure and wherein at least one of the metal layers is electrically coupled to the conductive dummy gate structure; a via opening having via opening sidewalls extending from a lower surface of the dielectric layer to an underside of the conductive dummy gate structure; an isolation layer covering the lower surface of the dielectric layer and continuously extending along the via opening sidewalls to contact the underside of the conductive dummy gate structure but not to cover the underside of the conductive dummy gate structure; a copper-barrier layer covering a lower surface of the isolation layer and contacting the underside of the conductive dummy gate structure; and a copper layer covering a lower surface of the copper-barrier layer and being separated from the isolation layer by the copper-barrier layer. - View Dependent Claims (20)
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Specification