SCR-based ESD protection for high bandwidth DRAMs

Myounggon Kang, Ki Whan Song, Hoeju Chung, Jinyoung Kim, Yeong Taek Lee, Changhyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

A modified SCR (silicon controlled rectifier) is proposed as an ESD protection for high speed signaling systems. With low voltage triggering (LVT) characteristics and good turn-on uniformity, the proposed SCR scheme accomplishes both goals, high discharging capability and Cin (input capacitance) reduction. The fabricated chips with the new ESD scheme passed the severe package level EOS test conditions such as HBM-5kV and MM-500V stress. The input capacitance, Cin, was measured to be 1.5pF which satisfies the DDR3-1066 specification with enough margin. We have observed in SPICE simulation that the data eye can be enlarged to 277ps (55.3% of UI) in DDR3 interface at 2Gbps operation due to the Cin reduction effect.

Original languageEnglish
Title of host publication2007 IEEE Asian Solid-State Circuits Conference, A-SSCC
Pages208-211
Number of pages4
DOIs
StatePublished - 2007
Event2007 IEEE Asian Solid-State Circuits Conference, A-SSCC - Jeju, Korea, Republic of
Duration: 12 Nov 200714 Nov 2007

Publication series

Name2007 IEEE Asian Solid-State Circuits Conference, A-SSCC

Conference

Conference2007 IEEE Asian Solid-State Circuits Conference, A-SSCC
Country/TerritoryKorea, Republic of
CityJeju
Period12/11/0714/11/07

Keywords

  • DRAM
  • ESD
  • GGNMOS
  • High speed
  • Input capacitance
  • SCR

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