Cooling channels in 3DIC stacks
First Claim
Patent Images
1. An integrated circuit structure comprising:
- a first die comprising;
a first semiconductor substrate;
first dielectric layers over the first semiconductor substrate;
a first interconnect structure in the first dielectric layers;
a first plurality of channels extending from inside the first semiconductor substrate to inside the first dielectric layers;
a first dielectric film over the first interconnect structure and sealing top ends of the first plurality of channels, wherein a bottom surface of the first dielectric film is exposed to the first plurality of channel, and wherein the first plurality of channels is configured to allow a fluid to flow through; and
a first fluidic tube and a second fluidic tube, each attached to a bottom end of one of the plurality of channels, with inner spaces of the fluidic tubes forming a continuous space with the first plurality of channels, wherein the first fluidic tube and the second fluidic tube are underlying the semiconductor substrate.
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Abstract
An integrated circuit structure includes a die including a semiconductor substrate; dielectric layers over the semiconductor substrate; an interconnect structure including metal lines and vias in the dielectric layers; a plurality of channels extending from inside the semiconductor substrate to inside the dielectric layers; and a dielectric film over the interconnect structure and sealing portions of the plurality of channels. The plurality of channels is configured to allow a fluid to flow through.
38 Citations
17 Claims
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1. An integrated circuit structure comprising:
a first die comprising; a first semiconductor substrate; first dielectric layers over the first semiconductor substrate; a first interconnect structure in the first dielectric layers; a first plurality of channels extending from inside the first semiconductor substrate to inside the first dielectric layers; a first dielectric film over the first interconnect structure and sealing top ends of the first plurality of channels, wherein a bottom surface of the first dielectric film is exposed to the first plurality of channel, and wherein the first plurality of channels is configured to allow a fluid to flow through; and a first fluidic tube and a second fluidic tube, each attached to a bottom end of one of the plurality of channels, with inner spaces of the fluidic tubes forming a continuous space with the first plurality of channels, wherein the first fluidic tube and the second fluidic tube are underlying the semiconductor substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An integrated circuit structure comprising:
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a first die comprising; a first semiconductor substrate; a first interconnect structure comprising metal lines and vias in first dielectric layers and on a front side the first semiconductor substrate; a first opening and a second opening extending from the front side to a backside of the first semiconductor substrate; and a first plurality of channels in the first dielectric layers and connecting the first opening to the second opening, wherein the first plurality of channels is separated from the first dielectric layers by metal pipes formed on sidewalls of the first plurality of channels; and a second die bonded to the first die. - View Dependent Claims (12, 13, 14)
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15. An integrated circuit structure comprising:
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a first die comprising; a first semiconductor substrate; first dielectric layers over the first semiconductor substrate; a first interconnect structure in the first dielectric layers; a first plurality of channels extending from inside the first semiconductor substrate to inside the first dielectric layers; and a first dielectric film over the first interconnect structure and sealing portions of the first plurality of channels, wherein the first plurality of channels is configured to allow a fluid to flow through; and a second die bonded to a backside of the first semiconductor substrate in the first die. - View Dependent Claims (16, 17)
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Specification