Superconductor Chip Interconnect Using Deforming Pin Contacts

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Solution Overview

Problem

Existing superconductor devices face challenges in maintaining reliable electrical connections between circuit boards and superconductor circuit chips due to temperature changes, as mercury-based connections are unreliable and prone to defects.

Innovation Solution

The use of pins inserted into wiring layers of a multi-layer board or interposer in a direction intersecting the wiring layers, allowing for plastic and elastic deformation to ensure a large contact area and secure electrical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If mercury spheres are used to maintain electrical connections between micropins and wiring modules, then the connections can accommodate relative displacement due to temperature changes, but the use of mercury creates reliability issues and potential defects in low-temperature environments

Engineering Contradiction:
Improveaccommodation of relative displacementVSAvoidelectrical connection reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent removes mercury from the connection system entirely, replacing it with a mechanical deformation mechanism where the wiring layer itself deforms to accommodate relative displacement between micropins, eliminating mercury-related reliability issues while maintaining adaptability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the physical state and behavior of the wiring layer by allowing it to deform plastically and elastically in response to temperature-induced displacement, transforming the rigid wiring structure into a flexible connection medium that maintains electrical contact without mercury

Inventive Principle:
Principle #35Parameter changes

2Reliability

If pins are inserted into wiring layers in a direction intersecting the wiring layers, then a large contact area is achieved through plastic and elastic deformation, but the manufacturing process becomes more complex

Engineering Contradiction:
Improveelectrical connection reliabilityVSAvoidpin insertion process complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The pin insertion process is performed as a preliminary action during assembly, where pins are inserted through holes in the wiring layer before final positioning, allowing the wiring layer to deform around the pins and create reliable contacts without requiring complex post-processing steps

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method enhances the reliability of electrical connections by ensuring a large contact area and consistent contact pressure, reducing the risk of defects caused by temperature changes.

Implementation Method 1

allowing for plastic and elastic deformation to ensure a large contact area and secure electrical connections

Methodology Applied
Scientific EffectPlastic deformation: Plasticity

Implementation Method 2

allowing for plastic and elastic deformation to ensure a large contact area and secure electrical connections

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS20260082821A1Superconductor Device and Method for Production Thereof
Publication Date: 2026.03.19 NEC CORP
  • US20260082821A1 patent drawing
  • US20260082821A1 patent drawing
  • US20260082821A1 patent drawing

AI summary

A superconductor device provided with a superconductor circuit chip; a multi-layer board including multiple wiring layers; and multiple pins electrically connecting the superconductor circuit chip with the multi-layer board; wherein the multiple pins are inserted into a wiring layer of the multi-layer board in a direction intersecting the wiring layer. Additionally, a superconductor device provided with a superconductor circuit chip; a multi-layer board including multiple wiring layers; an interposer that is disposed between the multi-layer board and the superconductor circuit chip, that is electrically connected to the superconductor circuit chip, and that has a wiring layer connected to a wiring layer of the wiring layers; and multiple pins electrically connecting the interposer with the multi-layer board; wherein the multiple pins are inserted into at least one of the wiring layer in the multi-layer board and in the interposer in a direction intersecting the wiring layer.