Adaptable SSD Storage Bay Interposer Design
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Solution Overview
Problem
Conventional storage trays for SSD modules are not mechanically and electrically compatible across different specifications like NGSFF and EDSFF, limiting compatibility and causing thermal management issues due to inadequate cooling.
Innovation Solution
The design includes an interposer with wiring and circuitry for voltage regulation, level shifting, and hot-swapping, allowing SSD modules compliant with various form factors (M.2, NGSFF, EDSFF) to connect to a computer system's bus, with enhanced thermal management through directed airflow and EMI shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional storage trays are used for different SSD specifications, then each tray is dedicated to a specific form factor, but compatibility across different specifications (NGSFF, EDSFF, M.2) is limited
Solution Approach 1:
The storage bay is designed with a universal connector card that can accommodate multiple SSD form factors (M.2, NGSFF, EDSFF) through a single interface. The connector card includes multiple connector types and an interposer with adaptable wiring patterns, allowing one storage bay to support various SSD specifications without requiring separate dedicated trays for each form factor.
Solution Approach 2:
An interposer is introduced as an intermediary component between the SSD module and the connector card. The interposer includes wiring that can be configured to connect different connector types, enabling compatibility between various SSD form factors and the storage bay interface. This intermediary component resolves the incompatibility between different specifications.
2Quantity of substance
If multiple storage trays are installed in a storage bay, then storage capacity increases, but thermal management becomes inadequate due to insufficient cooling
Solution Approach 1:
The design extracts the cooling function from the storage tray structure itself and implements a separate, dedicated cooling system. A cooling component is positioned adjacent to the SSD module, with a cooling channel that directs airflow specifically to the SSD, ensuring adequate thermal management even when multiple storage trays are installed in the storage bay.
3Ease of manufacture
If storage trays are designed for specific form factors, then manufacturing is simplified, but adaptability to different SSD specifications is reduced
Solution Approach 1:
The storage bay system is segmented into modular components: a standardized storage tray, an adaptable connector card, and an interposer. The connector card and interposer can be configured for different specifications while the storage tray itself remains a simple, easily manufactured component. This segmentation allows the majority of the structure to be mass-produced simply, while only the interface components require customization for different SSD form factors.
Data Source
AI summary
A solid state drive (SSD) storage bay includes storage trays and connector cards. A storage tray has a an interposer and an SSD module. A connector of the interposer is connected to a connector of the SSD module, and another connector of the interposer is connected to a connector of a connector card. The connector card includes terminals that connect to a bus of a computer system. The interposer includes wirings that allow electrical signals to propagate between the two connectors of the interposer. The interposer includes circuitry that allow for voltage regulation of supply voltage, level shifting, and hot-swapping.