Test Socket Dual Cover Retention Mechanism
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Solution Overview
Problem
Conventional IC sockets lack a convenient fastening mechanism for securely attaching electronic packages during burn-in testing, which is essential for ensuring the reliability of integrated circuits before they are assembled into end products.
Innovation Solution
A test socket design featuring an insulating seat with exposed terminals, a retaining member, and two pivotally mounted covers that rotate to enclose the electronic package, using pivot pins and locking mechanisms to securely hold the package in place, ensuring electrical connection and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional IC sockets are used without a fastening mechanism, then the device complexity is reduced, but the reliability of electronic package attachment deteriorates
Solution Approach 1:
The fastening mechanism is segmented into multiple independent components: a retaining member with retaining arms, and two covers with locking members. Each component performs a specific function, allowing the system to achieve reliable attachment through coordinated action of simpler parts rather than a single complex mechanism.
Solution Approach 2:
The retaining arms are designed to be movable rather than fixed, allowing them to flex during assembly and operation. This dynamic capability enables the retaining arms to adapt to slight variations in package dimensions and maintain reliable attachment without requiring precise manufacturing tolerances, thereby improving reliability while keeping the mechanism simple.
2Stability of the object's composition
If no fastening mechanism is provided, then the ease of operation is improved, but the retention stability during burn-in testing deteriorates
Solution Approach 1:
The locking members on the covers are designed to automatically engage with the retaining member when the covers are closed, without requiring additional fastening operations. This self-locking mechanism provides stable retention during burn-in testing while maintaining ease of operation, as the user only needs to close the covers rather than perform complex assembly steps.
3Reliability
If a fastening mechanism is added to conventional sockets, then the retention capability is improved, but the device complexity increases
Solution Approach 1:
The fastening mechanism is merged with the existing socket structure by integrating the retaining member and covers into the socket assembly. The retaining member is positioned within the socket body, and the covers are attached to the socket, creating a unified structure where the fastening function is combined with the electrical connection function, thereby improving reliability without proportionally increasing complexity.
Data Source
AI summary
A test socket includes an insulating seat defining a package-receiving room and loaded with a plurality of terminals, a retaining member retained on the insulating seat, a first cover and a second cover. The retaining member defines a first end and a second end. The first cover is assembled to the first end of the retaining member via a pivot pin at a lower end thereof The second cover is assembled to the second end of the retaining member via a second pivot pin at a lower end thereof The second cover presses against the first cover and is locked after the two covers rotate to close the package-receiving room. The first cover defines a pair of wheels at an upper end thereof and rolling along the second cover during the covers rotate downwards.