Memory Card Terminal Arrangement for Power Stability
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Solution Overview
Problem
Existing memory cards face challenges in maintaining a compact size while ensuring stable power supply and high-speed operation, particularly in meeting the demand for faster storage speeds.
Innovation Solution
The memory card design incorporates a substrate with specific terminal arrangements, including first and second row terminals for different voltage levels, a passive device, and a card detection terminal, optimized for efficient power distribution and area utilization, with the second row terminals positioned closer to the center for reduced distances to the memory controller and non-volatile memory devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If memory cards are made smaller to meet compact size demands, then portability is improved, but power supply stability deteriorates
Solution Approach 1:
The patent divides the terminal arrangement into two distinct rows: first row terminals closer to the insertion edge and second row terminals spaced farther apart. This segmentation allows optimized power distribution where the second row terminals (including second voltage power terminal 141) can be positioned to reduce routing distance to the memory controller, thereby maintaining power supply stability even in compact card designs.
2Speed
If storage speed is increased to meet high-speed operation demands, then data transfer rate is improved, but power consumption increases
Solution Approach 1:
The patent applies different voltage levels to different functional areas through the two-row terminal configuration. The first voltage power terminal (131) supplies higher voltage to the non-volatile memory device for high-speed data transfer, while the second voltage power terminal (141) supplies lower voltage to the memory controller for efficient operation. This local quality differentiation enables high-speed storage operations while managing overall power consumption.
3Area of stationary object
If terminal density is increased to maximize area utilization, then area efficiency is improved, but routing complexity increases
Solution Approach 1:
The patent transitions from a single-row terminal arrangement to a two-row terminal arrangement, utilizing the dimensional space along the insertion edge more effectively. The second row terminals are spaced farther apart from the insertion edge, creating a distributed pattern that reduces routing complexity while maximizing area utilization. This dimensional optimization allows terminals to be positioned closer to the memory controller with shorter trace lengths.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables efficient power supply, minimizes routing complexity, and supports high-speed operations by ensuring stable power delivery and reduced heat dissipation, while maximizing the use of the memory card's area.
Implementation Method 1
The passive device may be a capacitor
Data Source
AI summary
A memory card and an electronic system including the memory card. The memory card includes: a substrate having two pairs of edges, in which the edges of each pair face each other; a plurality of first row terminals that are arranged adjacent to an edge at an insertion side of the substrate and include a first voltage power terminal; a plurality of second row terminals that are spaced farther apart from the edge at the insertion side than the plurality of first row terminals and include a power terminal of a second voltage. According to the memory card, efficient use of an area may be maximized and an electrically stable power supply may be provided.