CPU Socket Mixed Pitch Contact Arrangement for Force Balancing
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Solution Overview
Problem
Traditional CPU sockets with contacts arranged in a single pitch matrix struggle to balance wiping action and imposed forces effectively, particularly when dealing with CPU designs that require contacts of different pitches.
Innovation Solution
A CPU socket design featuring two groups of contacts with different pitches, where each group has contacting arms extending in opposite directions to counterbalance reaction forces, allowing for a mixed arrangement to achieve balanced forces during CPU insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If contacts are arranged in a single pitch matrix (either regular 0.8 pitch or hex 0.9 pitch), then the structure is simple and manufacturing is easy, but the compatibility with CPU designs requiring different pitches is poor
Solution Approach 1:
The patent applies local quality by dividing the contact array into multiple regions with different pitch characteristics. Specifically, it uses a mixed pitch arrangement where certain areas have 0.8mm pitch contacts while other areas have 0.9mm pitch contacts, allowing each region to match the specific requirements of different CPU chip designs. This enables the socket to accommodate various chip layouts without requiring a complete redesign of the entire contact array.
Solution Approach 2:
The contact array is segmented into distinct groups with different pitch specifications. The patent divides the contacts into multiple groups where each group can have different pitch values (e.g., 0.8mm, 0.9mm, or other pitches), allowing independent optimization of each segment for specific CPU designs while maintaining overall socket functionality.
2Force
If contacts are arranged in a single pitch matrix, then the contact arrangement is uniform and simple, but the ability to balance wiping action and imposed forces is insufficient
Solution Approach 1:
The patent employs asymmetric contact arm arrangements within different pitch regions to balance forces. By varying the orientation and positioning of contacting arms in different pitch areas, the design creates asymmetric force distribution that compensates for the non-uniform pitch arrangement, ensuring that wiping actions and imposed forces are properly balanced across the entire contact array.
Solution Approach 2:
Different regions of the contact array are designed with locally optimized arm configurations. Each pitch region can have contacting arms arranged in directions and orientations specific to its pitch requirements, allowing force balancing to be optimized locally for each region rather than using a uniform approach across the entire array.
3Adaptability or versatility
If mixed pitch contacts are used to improve compatibility, then adaptability to different CPU designs increases, but the complexity of arranging contacts and balancing forces increases
Solution Approach 1:
The contact array is divided into manufacturable segments or modules, each containing contacts of a specific pitch. This segmentation allows manufacturing processes to be optimized for each pitch type independently, and the segments can be assembled into the final mixed-pitch socket configuration, reducing overall manufacturing complexity.
Solution Approach 2:
The socket design incorporates universal mounting and alignment features that work across all pitch regions. By using standardized interface elements, alignment mechanisms, and mounting structures that function across different pitch areas, the patent reduces the complexity of assembling and manufacturing the mixed-pitch configuration.
Data Source
AI summary
A CPU socket has an insulative housing equipped with two groups of contacts of different pitches from each other wherein either each group of contacts are arranged with the corresponding contacting arms extending in opposite directions to counterbalance the imposed/reaction forces itself or the two group of contacts are arranged with the corresponding contacting arms extending in opposite direction to somewhat counterbalance the imposed/reaction force during receiving a CPU therein, and or in a mixed manner, i.e., one group of contact with the corresponding contacting arms in the same direction while the other of contacts with the corresponding contacting arms extending in both opposite directions to achieve the total reaction forces in a substantial balanced manner.