ABSTRACT

Because of their widespread use in mainframes, PCs, and mobile audio and video devices, DRAMs are being manufactured in ever increasing volume, both in stand-alone and in embedded form as part of a system on chip. Due to the optimum design of their components—access transistor, storage capacitor, and peripherals—DRAMs are the cheapest and densest semiconductor memory currently available. As a result, most of DRAM structure research and development focuses on the technology used for its constituent components and their interconnections. However, only a few books are available on semiconductor memories in general and fewer on DRAMs.

Dynamic RAM: Technology Advancements provides a holistic view of the DRAM technology with a systematic description of the advancements in the field since the 1970s, and an analysis of future challenges.

Topics Include:

  • DRAM cells of all types, including planar, three-dimensional (3-D) trench or stacked, COB or CUB, vertical, and mechanically robust cells using advanced transistors and storage capacitors
  • Advancements in transistor technology for the RCAT, SCAT, FinFET, BT FinFET, Saddle and advanced recess type, and storage capacitor realizations
  • How sub 100 nm trench DRAM technologies and sub 50 nm stacked DRAM technologies and related topics may lead to new research
  • Various types of leakages and power consumption reduction methods in active and sleep mode
  • Various types of SAs and yield enhancement techniques employing ECC and redundancy

A worthwhile addition to semiconductor memory research, academicians and researchers interested in the design and optimization of high-density and cost-efficient DRAMs may also find it useful as part of a graduate-level course.

chapter 1|43 pages

Random Access Memories

chapter 2|35 pages

DRAM Cell Development

chapter 3|20 pages

DRAM Technologies

chapter 4|54 pages

Advanced DRAM Cell Transistors

chapter 5|34 pages

Storage Capacitor Enhancement Techniques

chapter 6|54 pages

Advanced DRAM Technologies

chapter 7|58 pages

Leakages in DRAMs

chapter 8|41 pages

Memory Peripheral Circuits