SK Hynix announced on the 25th that it was developing a high-speed DRAM for mobile use, “Low Power Double Data Rate 5 Turbo (LPDDR5T)” and provided a prototype to a customer.
LPDDR5T is a product that improves the performance of LPDDR5X mobile DRAM, which was introduced by SK Hynix in November last year. It increased the operating speed to 9.6 Gbps (9.6 gigabits per second), which is 13% faster. To emphasize the fast speed, SK Hynix added “Turbo” after the LPDDR5 standard name.
LPDDR is a DRAM standard used in mobile products such as smartphones and tablet PCs. In order to minimize electrical consumption, LP (Low Power) is attached to the standard designation. The latest standard is LPDDR 7th Generation (5X), which was developed in the order 1-2-3-4-4X-5-5X.
The LPDDR5T operates between 1.01 and 1.12 V, the lowest voltage standard established by the International Semiconductor Standards Organization (JEDEC).
SK Hynix provided customers with a prototype made in a 16GB capacity package by combining a single LPDDR5T chip. The data processing speed of the packaged product is 77 GB per second, which is equivalent to processing 15 Full HD movies in one second, SK Hynix said.
SK Hynix decided to mass-produce this product in the second half of the year based on the 4th generation (1a) class 10 nano fine process.
Following the LPDDR5X, SK Hynix applied the “HKMG (High-K Metal Gate)” process to this product. HKMG is a next-generation process that prevents leakage currents and improves capacitance by using high dielectric constant (K) material for the insulating film inside the DRAM transistor. SK hynix explained that it can reduce power consumption while increasing speed.
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SK Hynix expects the range of use of LPDDR5T to extend not only to smartphones, but also to artificial intelligence (AI), machine learning and augmented/virtual reality (AR/VR). ).
Seong-Soo Ryu, Vice President of SK Hynix (in charge of DRAM Product Planning), said, “SK Hynix broke the technical limit again in two months after launching LPDDR5X with 8.5GB speed. per second.
