Foresee NAND-Based MCP Micro Storage Unit SSD for IoT and Wearable Markets From Longsys Electronics

After early years of exploration, wearable devices and the IoT are developing diversely with enhanced functions in application fields. Plus, driven by the need for miniaturization and low power consumption, multi-chip package (MCP) storage products are widely applied.

In 2019, the Foresee Micro Storage product line by Shenzhen Longsys Electronics Co. Ltd. launched NAND-based MCP (nMCP) series products with the following capacity combinations: 4Gb+2Gb and 2Gb+2Gb.

With the wide application of the IoT, the market demand of the nMCP series products is increasing, and the nMCP series products with the capacity combinations of 2Gb+1Gb and 1Gb+1Gb emerged in this context. From the perspective of industry customers, these products not only save PCB space, but also reduce procurement costs of components in BOMs, thereby reducing overall costs of the system. The nMCP has become a storage solution for the soaring IoT and wearable markets.

Product information
Diversified product solutions meet various industry requirements.

Applications
Currently, the nMCP is mainly applied to 4G modules, telephone watches, MIFI, POS machines, feature phones, and the like. 4G modules are widely used in the market. Thanks to its compatibility and stability, It is better suited to wireless communications modules, wearable devices, and IoT applications that require miniaturization and low power consumption.

Advantages:

• Stacked packaging of flash and LPDDR saves PCB space
  Based on different storage technologies and processes, the nMCP is designed uniformly on a same substrate. With improved storage integration, the stacking technology ensures product performance and reliability while meeting miniaturization requirement of customers.
  By reducing 30%-40% of the PCB design area of terminal products, the nMCP simplifies PCB layout and wiring, accelerates product development, and provides industry customers with better geared memory solutions.

• Simplify procurement and production and save operational costs
  The company has designed different storage products, including SLC NAND flash and LPDDR2, on a same substrate. This integrated design reduces the number of components in customers’ BOMs, reduces procurement, logistics, warehousing, and processing costs, and enhances enterprise sustainability.

• Core voltage of 1.8V meets low power consumption requirement of terminals
  The nMCP series products combine NAND memory and low-power DRAM in a single package.
  The power consumption of a 1.8V NAND flash is about 40% lower than that of a 3.3V NAND flash device, and the power consumption of a 1.8V/1.2V LPDDR2 is about 30% lower than that of a 1.8V standard DDR2 device. In this way, the nMCP series products can meet low power requirement of the wearable devices and IoT.

• Tests ensure product reliability
  The nMCP has passed reliability verification (such as HTOL and HTSL for 3 lots) in accordance with the JEDEC standard, and has been widely used in the market.
  The flash part has passed chip-level tests (nearly 50 tests, including a total of 80 sub-tests) by Longsys R&D and testing teams. Moreover, non-volatile storage products have passed stable tests and erasure life tests that are specially designed and developed.

• The LPDDR part has passed 4 tests, namely high temperature aging test, high temperature pressure test, high and low temperature function test, and performance test, including a total of over 40 sub-tests. Test standards help deliver reliable products to customers.

Features:

• Diversified capacity combinations meet differentiated requirements
  Capacity combinations include 1Gb+1Gb, 2Gb+1Gb, 2Gb+2Gb, and 4Gb+2Gb. Diversified capacity combinations meet the storage requirements of different applications, such as IoT and 4G/5G modules.

• Industrial temperature requirements rater for wide range of scenarios
  The products meet the industrial temperature requirement of -40°C to 85°C, enabling them to adapt to various harsh operation environments and be used in a range of scenarios.

• nMCP more suitable for compact terminals
  FBGA162, the mainstream packaging technology in the market, not only saves PCB space, but also meets terminal miniaturization requirements.

Conclusion:
To cater for the growing application ecology, the company’s Micro Storage unit continues to improve its own R&D capabilities, improves product performance while ensuring high-standard production quality, and provides quality products, convenient services, and smooth supply chain management for industry customers.

Since the establishment of the Micro Storage unit 3 years ago, its products have been mass-produced by more than 200 customers WW, and have passed AVL verification by 25 mainstream platforms and over 100 master models, with total shipment volume exceeding 100 million pieces. These products meet the industry customers’ need for small-capacity and compact storage products in terms of performance, reliability, and compatibility.