Header menu link for other important links
X
80-kb Logic Embedded High-K Charge Trap Transistor-Based Multi-Time-Programmable Memory with No Added Process Complexity
Published in Institute of Electrical and Electronics Engineers Inc.
2018
Volume: 53
   
Issue: 3
Pages: 949 - 960
Abstract
This paper describes the design and implementation of an 80-kb logic-embedded non-volatile multi-time programmable memory (MTPM) with no added process complexity. Charge trap transistors (CTTs) that exploit charge trapping and de-trapping behavior in high-K dielectric of 32-/22-nm Logic FETs are used as storage elements with logic-compatible programming voltages. A high-gain slew-sense amplifier (SA) is used to efficiently detect the threshold voltage difference (Δ VDIF) between the true and complement FETs in the twin cell. Design-assist techniques including multi-step programming with over-write protection and block write algorithm are used to enhance the programming efficiency without causing a dielectric breakdown. High-temperature stress results show a projected data retention of 10 years at 125 °C with a signal loss of <30% that is margined in while programming, by employing a sense margining logic in the SA. Scalability of CTT has been established by the first demonstration of CTT-based MTPM in 14-nm bulk FinFET technology with read cycle time of 40 ns at 0.7-V VDD. © 1966-2012 IEEE.
About the journal
JournalData powered by TypesetIEEE Journal of Solid-State Circuits
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
ISSN00189200
Open AccessNo
Concepts (17)
  •  related image
    Amplifiers (electronic)
  •  related image
    C (programming language)
  •  related image
    Charge trapping
  •  related image
    Dielectric materials
  •  related image
    Digital storage
  •  related image
    Finfet
  •  related image
    High-k dielectric
  •  related image
    Logic gates
  •  related image
    Mathematical programming
  •  related image
    Threshold voltage
  •  related image
    CHARGE TRAP
  •  related image
    EMBEDDED MEMORY
  •  related image
    Finfets
  •  related image
    LOGIC COMPATIBLE
  •  related image
    Non-volatile
  •  related image
    Non-volatile memory
  •  related image
    Computer circuits