Universal Flash Storage Memory Card Nano SIM Form Factor
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Solution Overview
Problem
The existing memory card standards, such as UFS and SIM cards, often result in wasted space due to size differences when used together in mobile devices, as UFS cards are larger than nano SIM cards, leading to inefficient use of socket tray space.
Innovation Solution
Designing a UFS memory card with the same size and terminal configuration as a nano SIM card, including specific terminal arrangements for ground, power, and data signals, allowing it to share the same form factor and reduce space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UFS memory card is used with standard dimensions, then high-speed and high-capacity storage is achieved, but space is wasted in the socket tray due to size difference with SIM card
Solution Approach 1:
The patent creates a memory card that can serve dual purposes: functioning as both a SIM card and a UFS memory card. The card includes both SIM card terminals (C1-C7) and UFS terminals (DM0, DM1, DO0-DO3, DI0-DI3, VCCQ2, NC, GND) on the same substrate, allowing the single card to replace both SIM and memory card slots in mobile devices.
Solution Approach 2:
The patent merges two separate cards (SIM card and UFS memory card) into a single integrated card. The card substrate contains both SIM card contact terminals and UFS memory card contact terminals, combining the functions of two previously separate components into one unified device that fits standard SIM card slots.
2Adaptability or versatility
If multiple cards are mounted on one socket tray, then both SIM and memory functions are provided, but space efficiency is reduced due to size differences
Solution Approach 1:
The memory card is designed with universal compatibility, incorporating both SIM card functionality (through C1-C7 terminals for subscriber identification) and UFS memory card functionality (through DM0, DM1, DO0-DO3, DI0-DI3 terminals for high-speed data storage). This single card provides multiple functions that previously required separate cards.
Solution Approach 2:
The patent combines SIM card terminal arrangements and UFS memory card terminal arrangements on a single card substrate. The terminal layout includes SIM card contacts (C1, C2, C3, C5, C6, C7) and UFS contacts (DM0, DM1, DO0-DO3, DI0-DI3, VCCQ2, NC, GND) positioned to fit within standard SIM card slot dimensions, merging two card types into one.
Data Source
AI summary
A memory card includes a first ground terminal arranged in a first row that provides a ground voltage to at least one nonvolatile memory or a memory controller, universal flash storage (UFS) terminals arranged in a second row including a first UFS terminal that provides a second power, a second UFS terminal that provides a reference clock signal, and a third UFS terminal that provides a path for input/output data to the memory controller, and a first power terminal arranged in a third row that provides a first power supply voltage (VCC) to the at least one nonvolatile memory or the memory controller. The memory card has a size defined by a nano subscriber identification module (SIM) card standard, the first ground terminal corresponds to a “C5” terminal of the nano SIM card standard, and the first power terminal corresponds to a “C1” terminal of the nano SIM card standard.