Microwave integrated quantum circuits with cap wafer and methods for making the same
First Claim
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1. A quantum computing system comprising:
- a quantum circuit device;
a first substrate having a first surface on which the quantum processing device is disposed and a second, opposing surface;
a second substrate having a first surface; and
bonding elements in contact with one of the surfaces of the first substrate and the first surface of the second substrate,wherein the first surface of the second substrate forms a recess,wherein the first and second substrates are arranged such that the recess forms an enclosure that hosts the quantum circuit device,wherein the recess includes channels that allow for gas trapped inside the recess to be pumped out.
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Abstract
A quantum computing system that includes a quantum circuit device having at least one operating frequency; a first substrate having a first surface on which the quantum circuit device is disposed; a second substrate having a first surface that defines a recess of the second substrate, the first and second substrates being arranged such that the recess of the second substrate forms an enclosure that houses the quantum circuit device; and an electrically conducting layer that covers at least a portion of the recess of the second substrate.
113 Citations
82 Claims
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1. A quantum computing system comprising:
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a quantum circuit device; a first substrate having a first surface on which the quantum processing device is disposed and a second, opposing surface; a second substrate having a first surface; and bonding elements in contact with one of the surfaces of the first substrate and the first surface of the second substrate, wherein the first surface of the second substrate forms a recess, wherein the first and second substrates are arranged such that the recess forms an enclosure that hosts the quantum circuit device, wherein the recess includes channels that allow for gas trapped inside the recess to be pumped out. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method of fabricating a quantum computing system, the method comprising:
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forming a quantum circuit device on a first substrate, the first substrate having a first surface on which the quantum processing device is disposed and a second, opposing surface; forming bonding elements adapted to contact one of the surfaces of the first substrate and a first surface of a second substrate; forming spacers on one of the surfaces of the first substrate or the second substrate adapted to face each other, wherein the spacers are adapted to contact the surfaces of the first substrate and the second substrate adapted to face each other to cause a separation thereof that is substantially equal to a height of the spacers, and the spacers comprise insulating standoff bumps; and forming an electrically conducting layer disposed on the first surface of the second substrate that conforms to the insulating standoff bumps. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A quantum computing system comprising:
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a quantum circuit device; a first substrate having a first surface on which the quantum processing device is disposed and a second, opposing surface; a second substrate having a first surface; bonding elements in contact with one of the surfaces of the first substrate and the first surface of the second substrate; spacers disposed on one of the surfaces of the first substrate or the second substrate that face each other, wherein the spacers are in contact with the surfaces of the first substrate and the second substrate that face each other to cause a separation thereof that is substantially equal to a height of the spacers, and the spacers comprise insulating standoff bumps; and an electrically conducting layer disposed on the first surface of the second substrate that conforms to the insulating standoff bumps. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82)
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Specification