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Emerging Non-Volatile Memories Patent Landscape

  • February 2014
  • -
  • KnowMade
  • -
  • 120 pages


The integration limit of flash memories is approaching, and emerging Non-Volatile Memories (eNVM) to replace conventional Flash Memories have been proposed. Ferroelectric RAMs (FeRAMs), Magnetoresistive RAMs (MRAMs), Resistive-change RAMs (ReRAMs) or Phase-Change Random-Access Memories (PCRAMs) are promising to change the memory landscape. The field of eNVM has shown an intensive patenting activity since early 1990s, with a substantial increase during the past decade.
Currently, there are more than 8,600 relevant patent families filed all over the world. Patent families were filed by more than 800 patent applicants mainly located in USA, Japan, Taiwan and China. From a quantitative point of view, the most active companies are SK Hynix, Samsung, Toshiba, Micron Technology and IBM. In addition, startup firms do not file many patents and their main strategy is to license or sell their intellectual property.

The patents related to MRAM technology account for more than 40% of filings. The main patent applicants are Toshiba, Samsung and Renesas Electronics which represent together almost 30% of the patents. The MRAM technology was growing between 2003-2007 with more than 50% of patents published during these years. Currently, the number of patents filed has remained stable, with about 200 patents filed per year.
About 30% of patent families are related to PCRAM technology. They were mainly filed by SK Hynix and Samsung, they represent almost 40% of published patents. The PCRAM technology was increasing between 2002 and 2009, with more than 450 patent families published in 2009. Publication patents is decreasing these last 4 years, however more than 200 patents are still published every year. Patent filings will continue on PCRAM technology to further improve memory applications.
The patents dedicated to FeRAM technology represent 20% of filings. They were mainly filed by SK Hynix, Samsung and Seiko Epson which represent almost 50% of published patents. FeRAM is a mature technology, and FeRAM is not an active patent field yet.

Patents related to ReRAM technology account for almost 10% of new patent filings. ReRAM is the newest patented technology and the number of patent publications will continue to increase in the coming years. With over 100 patent families already filed, Samsung will play a significant role in this emerging technology development.


-Analysis of key players and technology key segments (FeRAM, MRAM, ReRAM, PCRAM).
-Time evolution of patent publications and countries of filings.
-Current legal status of patents.
-Ranking of main patent assignees.
-Joint developments and IP collaboration network of main patent assignees.
-Key patents.
-Granted patents near expiration.
-Overview of patent litigations.
-Relative strength of main companies IP portfolio.
-Matrix applicants/memory type for more than 50 companies.
-“emerging NVM IP” profiles of the main companies with key patents, memory types, litigations, licensing, partnerships and strategy.
-Excel database with all patents analyzed in the report with memory type segmentation.


-Understand the IP landscape for emerging NVM.
-Identify key patents by memory type or assignee.
-Understand trends in emerging NVM IP.
-Identify the major players in emerging NVM IP and the relative strength of their patent portfolio.
-Identify collaboration networks between key players (industrial and academics).
-Have an overview of past and current litigations and licensing agreements.

The report also includes an excel database with all patents analyzed in the report. This database allows multi-criteria searches and includes :

-Patent publication number
-Hyperlinks to the original documents
-Priority date
-Technological segments
-Legal status for each member of the patent family

Table Of Contents

Emerging Non-Volatile Memories Patent Landscape
Scope Of the Report
Key Features of the Report
Terminology for Patent Analysis
Types of Memories
Search Strategy and Patent Screening
Technological Segmentation
Executive Summary

I) IP Landscape Overview
Time Evolution of Patent Publication
Technology Breakdown of Patent Filing

II) Analysis of Technology Segments
For each memory type:
-Technology Description
-Time Evolution of Patent Publications
-Main Patent Assignees Ranking
-Main Joint Developments
-Time Evolution of Top-15 Patent Assignees
-Publication Countries of Top-15 Patent Assignees
-Geographic Breakdown of Patent Filings
-Current Legal Status of Patents
-Patent Assignee IP Network
-Segmentation by Type of Patent
-Main IPC Classes
-Main Reference Patents
-Expiration of Granted Patents
-Summary of Main Assignee Patent Portfolio
-Strength of Main Assignee Patent Portfolio

III) Summary of Assignee Portfolio
Matrix Applicant/Memory Type
Focus On Key Players
SK Hynix
Micron Technology
Infineon Technologies
Macronix International
Everspin Technologies
Cypress Semiconductor


Companies Mentioned

Adesto Technologies, Altis Semiconductor, Avalanche Technology, Beijing University, Crocus Technology, Crossbar, Cypress Semiconductor, Electronics and Telecommunications Research Institute (ETRI), Elpida Memory, Energy Conversion Devices, Everspin Technologies, Freescale Semiconductor, Fudan University, Fujitsu, Grandis, Hanyang University, Hewlett Packard, Hitachi, IBM, Industrial Technology Research Institute (ITRI), Infineon Technologies, Institute of Microelectronics (CAS), Intel, Intermolecular, Macronix International, Magic Technology, Micron Technology, Motorola, Nanya Technology, NEC, New York University, Oki Electric Industry, Olympus, Ovonyx, Panasonic, Powerchip, Promos Technologies, Qimonda, Qualcomm, Rambus, Ramtron International, Renesas Electronics, Rohm, Samsung, SanDisk, Seagate Technology, Seiko Epson, Semiconductor Manufacturing International Corporation (SMIC), Shanghai Institute (CAS), Sharp, SK Hynix, Sony, Spansion, Spin Transfer Technologies, STMicroelectronics, Symetrix, Taiwan Semiconductor Manufacturing (TSMC), TDK, Texas Instruments, Toshiba, Unity Semiconductor, Winbond Electronics

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