Toshiba Semiconductor (Thailand) Co., Ltd. (TST)

image of New Semiconductor Facility in Thailand

TST started the back-end processes, the assembly and packaging of the small signal devices and photocouplers at its Thai plant in April 2013. The Thai plant will extend its product lines in the years ahead. Toshiba has continued and will continue to invest in the discrete device business, promoting it as one of its major semiconductor businesses.

TST Production item


  • Bipolar Transistors
  • RF Transistors


  • ESD Protection Diodes
  • Schottky Barrier Diodes
  • Switching Diodes
  • RF Diodes

General-Purpose Linear ICs

  • Operational Amplifier ICs and Comparator ICs

Isolators/Solid State Relays

  • Photocouplers / Photorelays

General-Purpose Logic ICs

  • One-Gate Logic
  • Bus Switches
  • Dual-Supply Level Shifter

Outline of Toshiba Semiconductor (Thailand) Co., Ltd.

Location: Prachinburi Prefecture, Thailand
Site Area: Approx. 135,000㎡
Floor area: Approx. 40,000㎡
Start of plant construction July, 2012
Start of mass production April, 2013 (Start of shipment: May, 2013)
Production item: Discrete semiconductors (small signal devices, photocouplers)
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