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Model for ESD LCD Upset of a Portable Product

  • Jiang Xiao
  • , David Pommerenke
  • , Fan Zhou
  • , James L. Drewniak
  • , Hideki Shumiya
  • , Takashi Yamada
  • , Kenji Araki
  • Missouri University of Science and Technology

Research output: Contribution to journalArticlepeer-review

Abstract

A hybrid method is developed to model Electro-Static Discharge (ESD) LCD (Liquid Crystal Display) upset in a portable product. It combines ESD scanning, full-wave simulation and circuit simulation. This methodology is applied in the investigation of system-level ESD problem of the LCD of the portable product by the following steps. First, the sensitive area of the portable product causing the failure is located by ESD scanning. Using the local injection measurement currents, a behavioural SPICE model is then developed to simulate the ESD failure. Third, a full wave block-level model is used to extract the current densities at the sensitive regions; those current densities are imported into the SPICE model to predict ESD upset levels. The combined model is verified by testing its ability to simulate the upset level of four system level ESD test conditions, leading to satisfactory results.

Keywords

  • Ability Testing
  • Circuit Simulation
  • Combined Model
  • ESD
  • Electromagnetic Compatibility
  • Electromagnetism
  • Electrostatic Devices
  • Electrostatic Discharge
  • Full Waves
  • Full-Wave Simulations
  • Hybrid Method
  • Injection Measurement
  • LCD
  • Level Model
  • Liquid Crystal Displays
  • Portable Products
  • SPICE
  • SPICE Model
  • Sensitive Area
  • Soft-Error
  • System-Level ESD
  • System-Level ESD Test

Disciplines

  • Electromagnetics and Photonics

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