RRAM-Info: the RRAM experts

RRAM-Info is a news hub and knowledge center for Resistive RAM technologies.

Resistive RAM is a non-volatile computer memory that uses materials that change their resistance - or memristors. RRAM is still in its early stages, but it may enable fast, efficient and small memory chips

Recent RRAM News

ByteDance invests in Shanghai-based RRAM developer InnoStar, aiming to use its technology in future VR products

ByteDance (owner of TikTok) invested in InnoStar, a Shanghai-based RRAM developer established in 2019. ByteDance, through its Picoheart subsidiary, now holds a 9.5% share in InnoStar, making it the company's third largest stakeholder, after Memris Asia Pacific (28.8%) and Shanghai Alliance (26.3%). 

Picoheart is ByteDance's VR developer, which means that ByteDance likely hopes to adopt RRAM technology in future VR headsets.

Read the full story Posted: Mar 16,2024

Tetramem shows that its RRAM-powered analog computing SoC is capable of executing calculations with arbitrary precision

US-based Tetramem published a paper that shows its form of RRAM-powered analog computing is capable of executing calculations with arbitrary precision. It says the ability to perform high-precision multiplication within single electronic devices that can be readily formed in arrays offers scope to reduce the power consumption of machine learning when based on artificial neural networks.

The Tetramem device is made of a mixture of Al3O2, above a layer of HfO2 sandwiched between a tantalum/titanium top electrode and a platinum bottom electrode. Each of the bilayers is less than 1nm thick so that after being laid down they appear to form a mixed layer rather than two separate continuous layers. The device was fabricated in a 240-nm diameter via above the CMOS peripheral circuitry.

Read the full story Posted: Mar 13,2024


US-based Tetramem, founded by 2018, develops analog-in-RRAM compute processor architecture.

TetraMem says its processor will offer the industry’s most capable NPU for edge AI inference with a differentiated high performance at low power.

Weebit received first 22-nm GlobalFoundries wafers with its embedded RRAM memory

Israel-based RRAM developer Weebit Nano announced that it has received the first wafers integrating its
embedded RRAM memory manufactured in GlobalFoundries’ 22FDX platform. Initial tests of the wafers in this advanced 22nm FD-SOI (fully depleted silicon on insulator) are showing positive results on the array.

Weebit crossbar RRAM scheme

Weebit says that these are the first wafers with Weebit ReRAM manufactured in 22nm, one of the industry’s most
steadfast process nodes, and a geometry where embedded flash is not viable. 

Read the full story Posted: Nov 21,2023

Infineon unveiles a new family of hi-performance PSoC Edge MCUs, with RRAM memory

Infineon Technologies has unveiled a new family of microcontrollers in its PSoC portfolio of Arm Cortex-based high-performance, low-power, secured devices, the PSoC Edge, designed for next generation responsive compute and control applications.

The new PSoC Edge family features hardware-assisted machine learning (ML) and are based on Arm Cortex-M55, including Helium DSP support paired with Arm Ethos-U55 and Cortex-M33 paired with Infineon’s ultra-low power NNLite  hardware accelerator. The family of devices also come with extended on-chip memories, including non-volatile RRAM, as well as high speed, secured external memory support.

Read the full story Posted: Nov 10,2023

Weebit Nano announces first IP licensing revenue for its embedded RRAM technology

Israel-based RRAM developer Weebit Nano announced that it has received its first IP licensing revenue for its embedded ReRAM technology.

Weebit packaged RRAM chip photo

This initial licensing fee is $100,000. Weebit’s plan is to generate revenues from foundries and product companies in three main ways: licensing fees for design and manufacture; engineering fees for designs and processes; and royalties for use by customers, which will be received once customers begin shipping end products.

Read the full story Posted: Nov 06,2023

sureCore to add support for Intrinsic's RRAM memory to its SureFit custom design service

UK-based RRAM developer Intrinsic Semiconductor Technologies (Intrinsic) announced a collaboration with sureCore, to accelerate the time to market for its RRAM technology. Intrinsic says that its technology will assist SoC developers looking for embedded memory solutions in 22 nm or smaller nodes. 

sureCore will add Intrinsic's MRAM technology into its SureFIT Custom Design Service. Intrinsic says that both microcontrollers and evolving AI architectures using Intrinsic RRAM will deliver higher performance at lower power envelopes than those realized using off-chip flash.

Read the full story Posted: Nov 01,2023

Weebit Nano licenses its ReRAM technology to DB HiTek foundry

Israel-based RRAM developer Weebit Nano announced that it has signed a licensing agreement with DB HiTek, a Korean-based foundry (said to be one of the world's top 10 foundries). The commercial agreement includes technology transfer, qualification and licensing.

Weebit crossbar RRAM scheme


Under the agreement, DB HiTek has licensed Weebit ReRAM for its customers to integrate as embedded non-volatile memory. Weebit ReRAM technology will be available in DB HiTek’s 130nm Bipolar-CMOS-DMOS (BCD) process, which is used in analog, mixed-signal, and power designs in consumer, industrial and other IoT devices. DB HiTek also has the option to use Weebit ReRAM for other process nodes.

Read the full story Posted: Oct 19,2023

4DS Memorys achieved better-than-expected results from latest memory system testing

Australia-based RRAM developer 4DS Memory  announced that it has achieved “significantly better than expected” analysis results from testing of its latest memory system offering known as the Fourth Platform Lot wafer. 4DS says that the notable improvements to the 4Ds Platform Lot technology has been supported by the company’s ongoing collaboration with world-leading R&D and innovation hub in nanoelectronics and digital technologies developer, imec.

Mr Yen said the company has also proven that 4DS Interface Switching ReRAM technology is transferable, while demonstrating a fully functional megabit array with 4DS Interface Switching ReRAM memory cells. Notably, the tests also highlighted consistent read and write speeds equivalent to DRAM and proven endurance in excess of 2 billion cycles at DRAM read and write speed on a megabit array.

Read the full story Posted: Aug 24,2023

Weebit Nano raised $40 million to accelerate the commercialization of its RRAM technology

Israel-based RRAM developer Weebit Nano announced that it has secured $40 million USD in its latest financing round, meant to accelerate the development and commercial roll-out of its ReRAM technology. 

Weebit crossbar RRAM scheme

The fund raising took part through the placements of 12 million new shares to international institutional investors, as well as an oversubscribed share purchase plan (SPP) to existing shareholders.

In early 2023 Weebit taped-out demonstration chips integrating its embedded RRAM module in an advanced 22nm FD-SOI process technology. In November 2022 the company announced that it has received the first silicon wafers from SkyWater Technology, with embedded Weebit RRAM.

Read the full story Posted: Apr 25,2023