GaN HEMT epitaxial wafer - Press Release Submission

2" GaN HEMT Epitaxial Wafers

We offer 2" GaN HEMT Wafers, the structure is as follows:

Structure(from top to bottom):

*undoped GaN cap(2~3nm)

AlxGa1-xN (18~40nm)

AlN(buffer layer)

un-doped GaN(2~3um)

Sapphire substrate

* We can use Si3N to replace GaN on the top, the adhesion is strong, it is coated by sputter or PECVD.

AlGaN/GaN HEMT Epi Wafer on sapphire/GaN

2" GaN HEMT Epitaxial Wafers

We offer 2" GaN HEMT Wafers, the structure is as follows:

Structure(from top to bottom):

*undoped GaN cap(2~3nm)

AlxGa1-xN (18~40nm)

AlN(buffer layer)

un-doped GaN(2~3um)

Sapphire substrate

* We can use Si3N to replace GaN on the top, the adhesion is strong, it is coated by sputter or PECVD.

AlGaN/GaN HEMT Epi Wafer on sapphire/GaN

Layer ID——-Layer Name———–Material——————–Al Content(%)———–Dopant——Thickness(nm)

0—————–Substrate—————GaN or Sapphire——–﹍—————————﹍————-﹍

1—————–Nucleation Layer—–Various,AlN————–100————————–DID————﹍

2—————–Buffer Layer————-GaN————————-0—————————-NID————1800

3—————–Spacer———————AlN————————100————————–NID————1

4—————–Schottky Barrier——–AlGaN——————–20 or 23 or 26———–NID————21

2"AlGaN/GaN on sapphire

For specification of AlGaN/GaN on sapphire template, please contact our sales department: sales@powerwaywafer.com.

Application: Used in blue laser diodes, ultraviolet LEDs (down to 250 nm), and AlGaN/GaN HEMTs device.

Explanation of AlGaN/Al/GaN HEMTs:

Nitride HEMTs are being intensively developed for high-power electronics in high-frequency amplification and power switching applications. Often high performance in DC operation is lost when the HEMT is switched – for example, the on-current collapses when the gate signal is pulsed. It is thought that such effects are related to charge trapping that masks the effect of the gate on current flow. Field-plates on the source and gate electrodes have been used to manipulate the electric field in the device, mitigating such current-collapse phenomena.

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Source:PAM-XIAMEN

If you need more information about GaN HEMT epitaxial wafer，please visit our website:http://www.powerwaywafer.com, send us email at victorchan@powerwaywafer.com or powerwaymaterial@gmail.com.