Interposer Systems for Multi-CPU Information Handling
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Solution Overview
Problem
Information handling systems face variability in processing, storage, and communication needs, requiring adaptable configurations that current technologies struggle to efficiently meet across different applications and users.
Innovation Solution
A computing apparatus featuring a printed circuit board with multiple CPU sockets and interposers that provide connections between CPUs and various devices, including input/output devices, memory modules, storage devices, and PCIe devices, with optional signal integrity boost devices to enhance performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple CPU sockets are provided on a PCB, then processing capability and system versatility are improved, but device complexity and configuration difficulty increase
Solution Approach 1:
An interposer is introduced as an intermediary component between the PCB and CPUs. The interposer contains a first set of contacts that interface with the PCB and a second set of contacts that interface with the CPU, thereby mediating the connection and simplifying the overall system configuration while enabling multiple CPU sockets with enhanced versatility
2Adaptability or versatility
If secondary CPU sockets are made accessible, then system adaptability is improved, but signal integrity degradation occurs
Solution Approach 1:
The interposer serves as a mediator that provides dedicated signal paths from the PCB to the secondary CPU socket. By routing signals through the interposer's first set of contacts on the PCB and second set of contacts on the CPU, signal integrity is maintained while enabling access to secondary CPU sockets for enhanced system adaptability
3Adaptability or versatility
If interposers are used to connect CPU and devices, then connection flexibility is improved, but manufacturing complexity increases
Solution Approach 1:
The connection system is segmented into distinct components: the PCB with its first set of contacts, the interposer with intermediate contacts, and the CPU with its second set of contacts. This segmentation allows each component to be manufactured independently using standard processes, then assembled together, thereby improving connection flexibility while managing manufacturing complexity through modular construction
Data Source
AI summary
A computing apparatus including a printed circuit board (PCB) including a first central processing unit (CPU) socket and additional CPU socket(s); a CPU coupled to the first CPU socket; a base interposer coupled to the additional CPU socket(s); and one or more devices connected to the base interposer, wherein the base interposer provides a connection between the CPU and the one or more devices.