Elastic Memory Module Socket Contacts for Stable DDR5 Testing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional memory module test sockets face challenges in meeting the high-speed and large-capacity testing demands of DDR5 memory modules, particularly in maintaining consistent contact force and resistance characteristics due to rigid contact structures and limitations in electrical path design.
Innovation Solution
A memory module socket with an elastically fixable contact structure, featuring a curved contact body with asymmetrical shape and elastic support, which minimizes contact volume and maximizes contact force, reducing manufacturing costs and improving electrical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid contact structure is used, then the contact maintains structural stability, but the contact force consistency and electrical characteristics deteriorate under high-speed signaling conditions
Solution Approach 1:
The contact structure transitions from a completely rigid design to one incorporating elastic elements, changing the mechanical parameters to allow controlled deformation. This enables the contact to maintain consistent force under varying conditions while preserving structural integrity through the elastic recovery capability.
Solution Approach 2:
The contact assembly combines rigid components (contact body, socket housing) with elastic materials (elastic bodies), creating a composite structure that leverages both the structural stability of rigid materials and the force consistency of elastic materials. This composite approach resolves the contradiction between stability and reliability.
2Strength
If the contact volume is increased, then the structural strength is improved, but the resistance characteristics and electrical path efficiency worsen
Solution Approach 1:
The contact structure implements local quality by concentrating material only where structurally necessary while minimizing material in the electrical path. The elastic bodies provide localized support strength without adding bulk to the contact regions, maintaining low resistance characteristics while ensuring structural adequacy.
Solution Approach 2:
The contact assembly is segmented into distinct functional zones: rigid contact bodies for electrical connection, elastic bodies for mechanical support, and minimized structural elements. This segmentation allows optimization of each zone independently - strength where needed, minimal volume where electrical performance is critical.
3Ease of manufacture
If conventional rigid contacts are used, then the manufacturing process is simple, but the test performance and lifespan deteriorate under repeated use
Solution Approach 1:
The manufacturing process incorporates elastic elements with controlled physical parameters (hardness, elasticity modulus) that can be achieved through standard material selection and processing. This maintains manufacturing simplicity while dramatically improving test performance through the elastic contact mechanism that accommodates variations and maintains reliable electrical connection.
4Reliability
If the contact structure is optimized for high-speed signals, then the electrical characteristics improve, but the device complexity increases
Solution Approach 1:
The solution uses a composite contact structure combining rigid and elastic elements in a straightforward assembly. This achieves superior electrical characteristics for high-speed signals without excessive complexity, as the elastic components are integrated into the existing contact geometry rather than adding separate complex mechanisms.
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
The solution enhances electrical contact reliability and resistance characteristics, supporting high-speed signals by optimizing contact tension and structural support, thereby extending the lifespan and performance of the socket.
Implementation Method 1
an elastic body having a circular cross-section and inserted into the socket body to elastically support each of the contacts to the socket body
Data Source
AI summary
Proposed is a memory module socket capable of increasing electrical contact reliability. The memory module socket includes a socket body (100) including a slot (111) in which terminals (13) of a memory module are inserted, a plurality of receiving portions (113) symmetrically defined by a plurality of partition walls (112), and a stopper member (114) provided under the slot (111), at least one pair of contacts (200) symmetrically provided in each pair of receiving portions (113); and an elastic body (300) inserted into the socket body (100). Each of the contacts (200) includes a curved portion (210), an outer extension portion (220), a first protrusion (222), an inner extension portion (230), an inclined extension portion (240) including a first contact protrusion (240a), and a vertical extension portion (250). Each of the receiving portions (113) includes restraining surfaces (118a and 118b).