研究目的
To reduce the stub reflection effects on a memory channel of a server platform, improving memory channel eye height and eye width margin, and achieving balanced margin distribution between dimms.
研究成果
The design using WPD can significantly improve memory system margin for both read and write, helping achieve higher memory data rate and bandwidth.
研究不足
The study is based on simulations and may need validation through physical experiments. The applicability to configurations beyond 2 dpc is not discussed.
1：Experimental Design and Method Selection:
The design employs Wilkinson power divider (WPD) to solve the stub reflection problem in multi-dpc memory systems.
2：Sample Selection and Data Sources:
A typical 2 dpc microstrip memory channel running at 3200 MT/s was simulated.
3：List of Experimental Equipment and Materials:
WPD is used as a three-port device.
4：Experimental Procedures and Operational Workflow:
Conventional 2 dpc topology is compared to WPD enhanced 2 dpc configuration.
5：Data Analysis Methods:
Mean eye height (EH) and eye width (EW) margin, standard deviation and margin to 1% of 1 million cases covering process, voltage and temperature (PVT) variations were extracted for comparison.
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