Nonvolatile Memory Technologies with Emphasis on Flash

Nonvolatile Memory Technologies with Emphasis on Flash PDF Author: Joe Brewer
Publisher: John Wiley & Sons
ISBN: 1118211626
Category : Technology & Engineering
Languages : en
Pages : 766

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Book Description
Presented here is an all-inclusive treatment of Flash technology, including Flash memory chips, Flash embedded in logic, binary cell Flash, and multilevel cell Flash. The book begins with a tutorial of elementary concepts to orient readers who are less familiar with the subject. Next, it covers all aspects and variations of Flash technology at a mature engineering level: basic device structures, principles of operation, related process technologies, circuit design, overall design tradeoffs, device testing, reliability, and applications.

Nonvolatile Memory Technologies with Emphasis on Flash

Nonvolatile Memory Technologies with Emphasis on Flash PDF Author: Joe Brewer
Publisher: John Wiley & Sons
ISBN: 1118211626
Category : Technology & Engineering
Languages : en
Pages : 766

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Book Description
Presented here is an all-inclusive treatment of Flash technology, including Flash memory chips, Flash embedded in logic, binary cell Flash, and multilevel cell Flash. The book begins with a tutorial of elementary concepts to orient readers who are less familiar with the subject. Next, it covers all aspects and variations of Flash technology at a mature engineering level: basic device structures, principles of operation, related process technologies, circuit design, overall design tradeoffs, device testing, reliability, and applications.

Certain Flash Memory Controllers, Drivers, Memory Cards, and Media Players and Products Containing Same, Inv. 337-TA-619

Certain Flash Memory Controllers, Drivers, Memory Cards, and Media Players and Products Containing Same, Inv. 337-TA-619 PDF Author:
Publisher: DIANE Publishing
ISBN: 1457816199
Category :
Languages : en
Pages : 449

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Book Description


Inside NAND Flash Memories

Inside NAND Flash Memories PDF Author: Rino Micheloni
Publisher: Springer Science & Business Media
ISBN: 9048194318
Category : Technology & Engineering
Languages : en
Pages : 582

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Book Description
Digital photography, MP3, digital video, etc. make extensive use of NAND-based Flash cards as storage media. To realize how much NAND Flash memories pervade every aspect of our life, just imagine how our recent habits would change if the NAND memories suddenly disappeared. To take a picture it would be necessary to find a film (as well as a traditional camera...), disks or even magnetic tapes would be used to record a video or to listen a song, and a cellular phone would return to be a simple mean of communication rather than a multimedia console. The development of NAND Flash memories will not be set down on the mere evolution of personal entertainment systems since a new killer application can trigger a further success: the replacement of Hard Disk Drives (HDDs) with Solid State Drives (SSDs). SSD is made up by a microcontroller and several NANDs. As NAND is the technology driver for IC circuits, Flash designers and technologists have to deal with a lot of challenges. Therefore, SSD (system) developers must understand Flash technology in order to exploit its benefits and countermeasure its weaknesses. Inside NAND Flash Memories is a comprehensive guide of the NAND world: from circuits design (analog and digital) to Flash reliability (including radiation effects), from testing issues to high-performance (DDR) interface, from error correction codes to NAND applications like Flash cards and SSDs.

Flash Memories

Flash Memories PDF Author: Paulo Cappelletti
Publisher: Springer Science & Business Media
ISBN: 1461550157
Category : Technology & Engineering
Languages : en
Pages : 544

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Book Description
A Flash memory is a Non Volatile Memory (NVM) whose "unit cells" are fabricated in CMOS technology and programmed and erased electrically. In 1971, Frohman-Bentchkowsky developed a folating polysilicon gate tran sistor [1, 2], in which hot electrons were injected in the floating gate and removed by either Ultra-Violet (UV) internal photoemission or by Fowler Nordheim tunneling. This is the "unit cell" of EPROM (Electrically Pro grammable Read Only Memory), which, consisting of a single transistor, can be very densely integrated. EPROM memories are electrically programmed and erased by UV exposure for 20-30 mins. In the late 1970s, there have been many efforts to develop an electrically erasable EPROM, which resulted in EEPROMs (Electrically Erasable Programmable ROMs). EEPROMs use hot electron tunneling for program and Fowler-Nordheim tunneling for erase. The EEPROM cell consists of two transistors and a tunnel oxide, thus it is two or three times the size of an EPROM. Successively, the combination of hot carrier programming and tunnel erase was rediscovered to achieve a single transistor EEPROM, called Flash EEPROM. The first cell based on this concept has been presented in 1979 [3]; the first commercial product, a 256K memory chip, has been presented by Toshiba in 1984 [4]. The market did not take off until this technology was proven to be reliable and manufacturable [5].

Flash Memory Devices

Flash Memory Devices PDF Author: Cristian Zambelli
Publisher: Mdpi AG
ISBN: 9783036530123
Category : Technology & Engineering
Languages : en
Pages : 144

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Book Description
Flash memory devices have represented a breakthrough in storage since their inception in the mid-1980s, and innovation is still ongoing. The peculiarity of such technology is an inherent flexibility in terms of performance and integration density according to the architecture devised for integration. The NOR Flash technology is still the workhorse of many code storage applications in the embedded world, ranging from microcontrollers for automotive environment to IoT smart devices. Their usage is also forecasted to be fundamental in emerging AI edge scenario. On the contrary, when massive data storage is required, NAND Flash memories are necessary to have in a system. You can find NAND Flash in USB sticks, cards, but most of all in Solid-State Drives (SSDs). Since SSDs are extremely demanding in terms of storage capacity, they fueled a new wave of innovation, namely the 3D architecture. Today "3D" means that multiple layers of memory cells are manufactured within the same piece of silicon, easily reaching a terabit capacity. So far, Flash architectures have always been based on "floating gate," where the information is stored by injecting electrons in a piece of polysilicon surrounded by oxide. On the contrary, emerging concepts are based on "charge trap" cells. In summary, flash memory devices represent the largest landscape of storage devices, and we expect more advancements in the coming years. This will require a lot of innovation in process technology, materials, circuit design, flash management algorithms, Error Correction Code and, finally, system co-design for new applications such as AI and security enforcement.

Embedded Flash Memory for Embedded Systems: Technology, Design for Sub-systems, and Innovations

Embedded Flash Memory for Embedded Systems: Technology, Design for Sub-systems, and Innovations PDF Author: Hideto Hidaka
Publisher: Springer
ISBN: 3319553062
Category : Technology & Engineering
Languages : en
Pages : 253

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Book Description
This book provides a comprehensive introduction to embedded flash memory, describing the history, current status, and future projections for technology, circuits, and systems applications. The authors describe current main-stream embedded flash technologies from floating-gate 1Tr, floating-gate with split-gate (1.5Tr), and 1Tr/1.5Tr SONOS flash technologies and their successful creation of various applications. Comparisons of these embedded flash technologies and future projections are also provided. The authors demonstrate a variety of embedded applications for auto-motive, smart-IC cards, and low-power, representing the leading-edge technology developments for eFlash. The discussion also includes insights into future prospects of application-driven non-volatile memory technology in the era of smart advanced automotive system, such as ADAS (Advanced Driver Assistance System) and IoE (Internet of Everything). Trials on technology convergence and future prospects of embedded non-volatile memory in the new memory hierarchy are also described. Introduces the history of embedded flash memory technology for micro-controller products and how embedded flash innovations developed; Includes comprehensive and detailed descriptions of current main-stream embedded flash memory technologies, sub-system designs and applications; Explains why embedded flash memory requirements are different from those of stand-alone flash memory and how to achieve specific goals with technology development and circuit designs; Describes a mature and stable floating-gate 1Tr cell technology imported from stand-alone flash memory products - that then introduces embedded-specific split-gate memory cell technologies based on floating-gate storage structure and charge-trapping SONOS technology and their eFlash sub-system designs; Describes automotive and smart-IC card applications requirements and achievements in advanced eFlash beyond 4 0nm node.

Certain NOR and NAND Flash Memory Devices and Products Containing the Same, Inv. 337-TA-560

Certain NOR and NAND Flash Memory Devices and Products Containing the Same, Inv. 337-TA-560 PDF Author:
Publisher: DIANE Publishing
ISBN: 1457817489
Category :
Languages : en
Pages : 191

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Book Description


Flash Memories

Flash Memories PDF Author: Igor Stievano
Publisher: BoD – Books on Demand
ISBN: 9533072725
Category : Computers
Languages : en
Pages : 278

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Book Description
Flash memories and memory systems are key resources for the development of electronic products implementing converging technologies or exploiting solid-state memory disks. This book illustrates state-of-the-art technologies and research studies on Flash memories. Topics in modeling, design, programming, and materials for memories are covered along with real application examples.

Certain NAND Flash Memory Circuits and Products Containing Same, Inv. 337-TA-526

Certain NAND Flash Memory Circuits and Products Containing Same, Inv. 337-TA-526 PDF Author:
Publisher: DIANE Publishing
ISBN: 1457817837
Category :
Languages : en
Pages : 205

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Book Description


Certain Flash Memory Circuits and Products Containing Same, Inv. 337-TA-382

Certain Flash Memory Circuits and Products Containing Same, Inv. 337-TA-382 PDF Author:
Publisher: DIANE Publishing
ISBN: 1457825481
Category :
Languages : en
Pages : 301

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Book Description