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GaN Epitaxial Wafer

The Gate to the Future Semiconductor World

Feature

NTT-AT is pleased to announce that we have started to provide GaN epitaxial wafer.
Thanks to the new fabrication technique developed by NTT laboratories, the high production yield ratio has been achieved.

HEMT Epi Layer Structure image


Specification

AFM Image of HEMT Epi Surface

image1

C-V Profile in AlGaN/GaN HEMT Structure

graph image

Sheet Resistance Uniformity in AlGaN/GaN HEMT

[data]Number of points:28, Average measurement:408.7 ohm/sq., Max. value:414.4ohm/sq., Min. value:403.0ohm/sq., Variation in measurement:2.789%, Std. dev. from average:2.89ohm/sq.

Standard fabrication process

  1. Formulate crystal growth conditions
  2. Substrate cleaning
  3. Expitaxial growth
  4. Non destructive inspection of crystal quality by X-ray diffraction

Other optional inspection services are available to meet your needs

  • Thickness uniformity
  • Composition uniformity
  • Sheet resistance
  • Mobility
  • AFM
  • Surface inspection

NTT-AT is pleased to "customize" our GaN epi-wafer according to your needs.
Please let us know your required layer structure and quantity.



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