Socket Insert-Molded Terminal Bricks Positioning Stability
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Solution Overview
Problem
Existing CPU socket designs face challenges in achieving high density, efficient communication, and reduced susceptibility to damage during installation, particularly in portable devices, due to large terminal sizes and limitations in voltage levels and data rates.
Innovation Solution
The design incorporates insert-molded terminal bricks supported by a housing with apertures, allowing precise positioning and reduced terminal body size, along with conductive materials for shielding to minimize cross-talk and enhance electrical connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If terminals have a large body portion to be pressed into the aperture of the frame for position control, then terminal positioning stability is improved, but terminal density deteriorates
Solution Approach 1:
The terminal is divided into two functional parts: a large support block for stable positioning in the aperture and a smaller contact portion for electrical connection. This segmentation allows the support block to provide positioning stability while the smaller contact portion reduces space occupation, enabling higher terminal density.
Solution Approach 2:
The contact portion is nested within or integrated with the support block structure. The support block contains the contact portion, allowing the terminal to maintain a large footprint for positioning stability while keeping the active contact area compact, thus improving terminal density without sacrificing positioning stability.
2Productivity
If a large number of terminals are provided in a relatively small area for high communication lane density, then communication capacity is improved, but terminal positioning precision deteriorates
Solution Approach 1:
By separating the positioning function (support block) from the connection function (contact portion), the design allows the support block to be precisely positioned in the aperture while the contact portion maintains precise electrical alignment. This functional segmentation enables high terminal density with maintained positioning precision.
Solution Approach 2:
The support block acts as an intermediary between the frame aperture and the contact portion. It provides a stable mounting platform that ensures precise positioning of the terminal assembly, allowing multiple terminals to be densely packed while maintaining individual positioning accuracy.
3Reliability
If pins on PGA CPU package are used for electrical connection, then electrical connectivity is achieved, but susceptibility to damage during installation is worsened
Solution Approach 1:
Instead of having the CPU pins insert into terminals (PGA style), the design inverts the connection approach by having the socket terminals actively engage with pads on the CPU package (LGA style). This inversion protects the CPU pins from damage during installation as the socket terminals bear the mechanical stress of insertion and engagement.
Solution Approach 2:
The socket terminals with flexible arms act as intermediaries between the CPU package pads and the circuit board. They absorb the mechanical stress and positioning tolerances, protecting the CPU pads and pins from damage during installation and operation while maintaining reliable electrical connectivity.
4Quantity of substance
If terminal body size is reduced for higher density, then terminal density is improved, but terminal strength deteriorates
Solution Approach 1:
The terminal is segmented into a large support block that provides mechanical strength and positioning stability, and a smaller contact portion that provides electrical connection. The support block's larger size compensates for the reduced overall terminal size, maintaining terminal strength while enabling higher density through the compact contact portion.
Solution Approach 2:
The terminal uses composite construction with the support block and contact portion potentially made from different materials or configurations optimized for their specific functions. The support block provides mechanical strength and rigidity, while the contact portion is optimized for electrical conductivity and connection, achieving both high density and terminal strength.
Data Source
AI summary
A socket includes a housing that supports terminal bricks that can contain one or more terminals. The terminal bricks are inserted into apertures in the housing. The location of the terminal bricks can be adjusted separate from a side of the housing, thus providing the potential to improve coplanarity of the terminals in the socket.