Reducing losses in superconducting cables
A superconducting cable and superconducting technology, applied in the manufacture/processing of superconducting devices, superconducting devices, logic circuits using superconducting devices, etc., can solve problems such as consumption, large energy, and expensive refrigeration equipment
Pending Publication Date: 2020-12-18
MICROSOFT TECH LICENSING LLC
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Problems solved by technology
The refrigeration equipment used to provide this cooling for superconducting logic devices is expensive and consumes a lot of energy
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[0015] I. General considerations
[0016] Disclosed herein are representative embodiments of methods, apparatus, and systems for designing, manufacturing, and assembling substrates carrying conductors and / or superconductors using connectors that form mechanical and / or electrical connections between such substrates Material. The present disclosure is set forth in the context of representative embodiments, which are not intended to be limiting in any way.
[0017] As used in this application, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. In addition, the term "includes" means "comprises". Furthermore, the term "coupled" includes mechanical, electrical, magnetic, optical and other practical means of coupling or linking items together and does not exclude the presence of intervening elements between the coupled items. Also, as used herein, the term "and / or" refers to any one or more of the items in a phrase.
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Abstract
Methods and apparatus are disclosed for cooling superconducting signal lines disposed on an interconnect such as a flexible cable or a rigid substrate. The superconducting signal lines are cooled to acryogenic temperature lower than the temperature at which at least some superconducting logic devices coupled to the interconnect are operated. In some examples, an airtight conduit, heat pipe, or thermally conduct of strap provided to cool the superconducting interconnect. In one example of the disclosed technology, a system includes at least two sets of superconducting logic devices, cooling apparatus adapted to cool the logic devices to a first operating temperature, and interconnect coupling the superconducting logic devices, and a cooling apparatus in thermal communication with the interconnect. The apparatus is adapted to cool superconducting signal lines on the interconnect to a lower operating temperature than the first operating temperature at which the superconducting logic devices operate.
Description
Background technique [0001] Conventional semiconductor-based integrated circuit technologies, such as those based on silicon or gallium arsenide device technologies, are reaching their physical limits in terms of device size, switching frequency, and power consumption. Additionally, integrated circuits deployed in data centers are consuming increasing amounts of power. This includes power consumed by leakage currents when the semiconductor device is not switching. There is great interest in building quantum computers that can perform certain types of useful computations (e.g., quantum chemistry) faster and more economically than any existing digital computer technology. [0002] One way to address the limitations of conventional semiconductor technology is to use devices based on superconducting logic. Such devices are typically cooled to cryogenic temperatures in order to function in the superconducting state. The refrigeration equipment used to provide this cooling for su...
Claims
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IPC IPC(8): H01L39/14H01L39/24H01L39/22H01L39/02
CPCH10N60/20H01B3/306H01B12/16H01P3/08H02G3/0462H03K19/195H05K7/20336H10N60/805H10N60/203H10N60/124H10N60/0941
Inventor B·J·斯密斯D·B·塔克曼
Owner MICROSOFT TECH LICENSING LLC