Sealed Chip Package Socket Structure for Corrosion-Resistant Contacts

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Solution Overview

Problem

Increasing pin counts and reduced contact normal force in socket based interconnects lead to susceptibility to electrical failures due to corrosion and oxidation, especially in environments with moisture and contamination, and immersion cooling affects signal integrity and contact resistance.

Innovation Solution

Implementing environmentally sealed regions around socket structures using rings, bellows, or package carriers to prevent the ingress of gases, moisture, and contaminants, thereby protecting contact interfaces from corrosion and oxidation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the number of pins is increased to meet bandwidth and IO speed requirements, then the data transmission capability is improved, but the contact normal force for each contact must be reduced which makes contacts more susceptible to electrical failure

Engineering Contradiction:
ImproveIO speedVSAvoidelectrical failure susceptibility
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent applies inert atmosphere by providing an environmentally sealed region filled with inert gas (nitrogen or dry air) around the socket structure. This seal prevents moisture and contaminants from reaching the contact interfaces, creating an inert environment that protects against corrosion and oxidation. The sealing mechanism includes a seal ring between the heat spreader and board, and optionally a package carrier surrounding the socket structure, maintaining the inert atmosphere throughout the operational life of the device.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

2Speed

If compression mounted technology is used to improve IO speed, then the data transmission capability is improved, but the number of contact interfaces is doubled which increases the chance of electrical failure

Engineering Contradiction:
ImproveIO speedVSAvoidnumber of contact interfaces
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent applies inert atmosphere by providing an environmentally sealed region filled with inert gas (nitrogen or dry air) around the socket structure. This seal prevents moisture and contaminants from reaching the contact interfaces, creating an inert environment that protects against corrosion and oxidation. The sealing mechanism includes a seal ring between the heat spreader and board, and optionally a package carrier surrounding the socket structure, maintaining the inert atmosphere throughout the operational life of the device.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

3Ease of operation

If contact normal force is reduced to make socketing mechanically feasible, then the mechanical feasibility is improved, but the contacts become more susceptible to corrosion and oxidation

Engineering Contradiction:
Improvesocketing feasibilityVSAvoidcorrosion and oxidation susceptibility
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies inert atmosphere by providing an environmentally sealed region filled with inert gas (nitrogen or dry air) around the socket structure. This seal prevents moisture and contaminants from reaching the contact interfaces, creating an inert environment that protects against corrosion and oxidation. The sealing mechanism includes a seal ring between the heat spreader and board, and optionally a package carrier surrounding the socket structure, maintaining the inert atmosphere throughout the operational life of the device.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

4Temperature

If immersion cooling is used to cool the system, then the thermal management is improved, but the signal integrity and contact resistance are affected

Engineering Contradiction:
Improvecooling efficiencyVSAvoidsignal integrity
Core Design Contradiction:
TemperatureVSReliability

Solution Approach 1:

The patent applies inert atmosphere by providing an environmentally sealed region filled with inert gas (nitrogen or dry air) around the socket structure. This seal prevents moisture and contaminants from reaching the contact interfaces, creating an inert environment that protects against corrosion and oxidation. The sealing mechanism includes a seal ring between the heat spreader and board, and optionally a package carrier surrounding the socket structure, maintaining the inert atmosphere throughout the operational life of the device.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

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

Enhances the reliability and performance of electronic systems by reducing the probability of defects at contact interfaces and maintaining signal integrity.

Implementation Method 1

Implementing environmentally sealed regions around socket structures using rings, bellows, or package carriers to prevent the ingress of gases, moisture, and contaminants

Methodology Applied
Scientific EffectPhysical Containment: Physical Containment

Data Source

PatentUS20250218909A1Environmental sealing for electronics chip package sockets
Publication Date: 2025.07.03 INTEL CORP
  • US20250218909A1 patent drawing
  • US20250218909A1 patent drawing
  • US20250218909A1 patent drawing

AI summary

Embodiments disclosed herein include socketing apparatuses with environmental sealing options. In an embodiment, such an apparatus comprises a first substrate, and a second substrate over the first substrate. In an embodiment, a socket structure is provided between the first substrate and the second substrate, where the socket structure comprises a plurality of electrical interconnects between the first substrate and the second substrate. In an embodiment, a die is over the second substrate, and a third substrate is over the die. In an embodiment, a ring is around the socket structure, and the ring is coupled to the first substrate and the third substrate.