Ron Neale enjoyed an extensive e-mail correspondence with Professor Carlos Paz de Araujo of the University of Colorado in Colorado Springs, and founder of Symetrix, about Symetrix’ new approach to ferroelectric memory technology. In this post Ron provides an overview of that conversation that provides significant insight into why FRAMs hit their limit at 180nm, and why they suddenly have opportunities at the most advanced process lithographies.
Ferroelectric memory was one of the earliest and first of the non-volatile (NV) emerging memory technologies to make significant Continue reading “Symetrix: The Next Big Step for FeFETs”
Microchip Technology is now shipping a memory chip that has been designed to provide the most popular features of emerging memory chips without using any non-standard semiconductor technologies. It’s as fast as an SRAM with the nonvolatility of an EEPROM.
Readers may recall that Tom Coughlin and I recently updated Continue reading “Microchip’s Answer to Emerging Memories”
Perhaps the oldest nonvolatile semiconductor memory type is the ferroelectric memory, which recently celebrated its 68th birthday. FRAM predates flash memory, EEPROM, and even UV-erasable EPROM. It’s even older than mask ROM, which wasn’t invented until 1967!
As a matter of introduction to the technology, FRAM, or ferroelectric memory, is a read/write nonvolatile memory technology that performs significantly better than Continue reading “FRAM Turns 68”
The Memory Guy is pleased to announce the release of a new report co-authored by Objective Analysis and Coughlin Associates named: Emerging Memories Find Their Direction. In this report we show that emerging memories, MRAM, ReRAM, 3D XPoint, and other technologies are well on their way to reach $36 billion of combined revenues by 2030.
The report provides invaluable guidance to Continue reading “Emerging Memory Market to Hit $36 Billion by 2030”
Almost one year ago Tom Coughlin and The Memory Guy presented the findings of our first emerging memories report at the Storage Networking Industry Association’s (SNIA) Storage Developers Conference (SDC). The podcast of this presentation has just been made available on the SNIA website.
In the podcast, titled “The Long and Winding Road to Persistent Memories,” Tom and I reviewed leading emerging memory technologies as we had surveyed them for our report.
This is a highly visual presentation, so I would recommend following along with the slides, which can also be downloaded from the SNIA SDC website at HERE. That same page combines the slides and the podcast into a video, so if you’re able to, it might be a good idea to watch the video. If you’re driving as your listening to it, though, then please use the podcast instead!
In the time since that podcast was recorded Tom and I have updated the report to a 2019 edition, which can be Continue reading “Podcast: Storage Developer Conference 2018 – Emerging Memories”
Tom Coughlin and I are proud to announce that we have released an update of our popular emerging memory report. This report, titled Emerging Memories Ramp Up, covers all leading emerging memory technologies from PCM and 3D XPoint through MRAM and ReRAM to less-known types like carbon nanotubes and polymeric FRAMs.
Anyone who makes or uses memory chips, or who is involved in this ecosystem as an investor or tool supplier needs to read and understand this study to prepare for one of the biggest changes in the history of the chip market. The report’s wealth of information will allow companies to make strategic plans to gain a competitive edge.
The report’s forecast model has determined that the emerging memory market will grow to $20 billion by 2029 largely by displacing today’s less efficient Continue reading “Emerging Memory Report Updated”
Readers who have been following this series will note that The Memory Guy has so far described everything pertaining to emerging memory technologies except for the market outlook. In this post I will share some key elements of our emerging memory forecast.
Since this is a simple blog post the forecast coverage is brief. The detailed forecast appears in the report that is the basis of this blog post series: Emerging Memories Poised to Explode.
The first large-scale applications poised to replace today’s standard NOR flash with a new memory technology will be the embedded memories in CMOS logic chips that are processed on advanced process nodes (processes of 28nm and smaller.) Many CMOS logic chips use NOR flash, especially microcontrollers (MCUs) which are found in a very broad range of applications. The vast majority of MCUs, though, are uncomplicated and can therefore be economically produced on larger, older process nodes like 90nm and greater.
At tighter processes flashless versions of some MCUs already ship that can Continue reading “Emerging Memories Today: Forecasting Emerging Memories”
Most memory industry participants view emerging memories as the eventual path of the business: There’s no doubt that today’s memory technologies will stop scaling, and that new memory technologies will need to replace today’s leading technologies both in the embedded and stand-alone spaces. This includes DRAM, NAND flash, NOR flash, and SRAM. Because this outlook is held by nearly everyone in the industry, all major memory manufacturers are investing in alternative memory technologies. The leading players are researching multiple technologies at the same time.
Meanwhile, the industry outlook has allowed many university research projects and other similar efforts to gain funding to develop new memory types, spawning a large number of small single-technology companies tightly focused on one technology or another: ReRAM, MRAM, FRAM, and others, including such highly-differentiated technologies as carbon nanotubes and printable polymers.
In our Emerging Memory report Tom Coughlin and I did our Continue reading “Emerging Memories Today: Emerging Memory Companies”
Something that distinguishes the Emerging Memory report that Tom Coughlin and I recently published is the depth in which we cover in the field. This is not measured in pages, but in the topics that we cover. For example, this blog post, excerpted from the report, covers the changes in tooling that will be necessary to allow a standard CMOS wafer fabrication plant (a “fab”) to produce an emerging memory technology, and the impact that this is likely to have on the market for semiconductor tools.
All of the emerging memory technologies covered in the Memory Guy’s previous post share certain things in common. One of them is that they are built between metal layers, rather than in the silicon CMOS substrate itself (with the possible exception of the hafnium oxide FRAM.)
This means that the tooling required for any of these technologies will bear a strong resemblance to that used by any of the others. For the most part these tools will be used for deposition and etch. The lithography requirements will be satisfied by the tools used to pattern the metal layers.
The process flow in this figure sheds some light on the steps that Continue reading “Emerging Memories Today: Process Equipment Requirements”
Here in the US we use an extremely odd expression. If there are multiple varieties of an item we commonly say: “There are more of them than you can shake a stick at!” This is a very lengthy way to say: “numerous.” (I don’t believe that ANYONE understands how that expression became a part of our vernacular!) Although The Memory Guy isn’t normally seen shaking a stick, I find it an apt way to describe the numerous new memory technologies that are being pioneered today. There are certainly lots of them!
This post is intended to be very high-level technical description of today’s leading emerging memory technologies. These are excerpts of the in-depth descriptions that can be found in our recently-released report: Emerging Memories Poised to Explode.
PCM: Also known as PRAM, Phase-Change Memory technology is based upon a material that can be either amorphous or crystalline at normal ambient temperatures. The crystalline state has a low resistance and the amorphous state has a high resistance. This is controlled by melting the bit cell by passing a current though it and then allowing it to cool at different rates.
In chemistry and physics, anything with a Continue reading “Emerging Memories Today: The Technologies: MRAM, ReRAM, PCM/XPoint, FRAM, etc.”