imageek hub Samsung unveiled the world's first 3nm chip, the 256GB capacity of SRAM memory chip voltage only 0.23V

Samsung unveiled the world's first 3nm chip, the 256GB capacity of SRAM memory chip voltage only 0.23V

Mar 17,2021

In recent years, TSMC has been riding high in semiconductor technology. Only Samsung has been able to catch up, but the quality of TSMC's technology has been questioned.

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At the recent IEEE ISSCC International Solid-State Circuits Conference, Samsung (or rather, Samsung Foundry) unveiled its first 3nm chip, a 256GB (32GB) SRAM memory chip, the first step in the tradition of the new process.


On Samsung's roadmap, 14nm, 10nm, 7nm, and 3nm are all-new process nodes, while others are upgraded and improved, including 11/8/6/5/4nm, and more.

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Samsung will be the first to use GaAFET (surround gate field effect transistor) technology in the 3nm process, once again achieving a transistor structure breakthrough, compared to the current three-dimensional FINFET transistor is a giant leap forward.


There are two types of GaAFET technology: conventional GaAFET, which uses nanowire as the fin of the transistor (FIN), and MBCFET, which uses a thicker and broader fin called a nanosheet.

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Samsung's first 3nm SRAM chip uses MBCFET, which has a capacity of 256GB and an area of 56 square millimetres. Samsung is most proud of its ultra-low power consumption, requiring a write voltage of only 0.23V, thanks to the various power-saving technologies of MOSFET.


According to Samsung, the 3GAE process can increase transistor density by up to 80 per cent, improve performance by up to 30 per cent, or reduce power consumption by up to 50 per cent compared to its 7LPP.


Perhaps this will allow Samsung to control chip power consumption better, heat and avoid another so-called "rollover".


The Samsung 3Nm is expected to go into mass production next year but has yet to announce any customers.

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TSMC, 3 nm to continue using FinFET technology, density increased by 70%, as compared with 5 nm transistor performance can improve 11% or power consumption reduced by 27%, are expected to be put into trial production later this year, next year, including in addition to the apples, AMD, NVIDIA, MediaTek, spirit, Broadcom and Qualcomm, even it is said that Intel would use.