Burn-in Socket Self-Centering Bracket Alignment
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Solution Overview
Problem
Existing burn-in sockets fail to precisely center IC packages due to tolerance dimensions and zero insert force issues, resulting in gaps between the IC package and the socket body, which affects electrical connection.
Innovation Solution
A burn-in socket with a self-centering supporting bracket featuring oblique aligning portions and elastic elements that securely position the IC package, ensuring alignment with the socket's center and maintaining contact with terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the IC package is positioned by inner edges of the socket body, then the structure is simple, but the center alignment between IC package and socket body cannot be achieved due to tolerance dimensions
Solution Approach 1:
The patent introduces a supporting bracket as an intermediary component between the IC package and the socket body. This bracket includes positioning portions with inclined surfaces that actively guide and center the IC package during insertion, mediating the alignment process and eliminating the gap caused by tolerance dimensions while maintaining overall structural simplicity.
2Ease of operation
If the IC package is loaded along one inner edge of the socket body, then the insertion process is simple, but the electrical connection is influenced due to misalignment
Solution Approach 1:
The supporting bracket performs preliminary centering action before the IC package makes full contact with the socket body. The inclined surfaces of the positioning portions guide the package into proper alignment during insertion, ensuring that when electrical contact is established, the connection is reliable and centered, thus maintaining ease of operation while improving connection reliability.
Data Source
AI summary
A burn-in socket includes a base, a plurality of terminals received in the base, a self-centering supporting bracket mounted above the base in a floating manner and a plurality of elastic elements mounted between the base and the supporting bracket. The supporting bracket defines a receiving cavity for receiving an IC package, and the receiving cavity has a number of oblique surfaces for leading and supporting the IC package so as to precisely position the IC package in the burn-in socket.