Abstract
In this work, the influence of un-doped GaN cap layer on AlGaN/GaN high electron mobility transistors (HEMTs) has been studied by using DC, pulsed I-V, capacitance-voltage (C-V), and load-pull characterizations. The device without cap layer is found to exhibit smaller dynamic range (Von-Vth) compared to that of the device with cap layer. However, the lower interface trap density in the device without cap layer can lead to higher drain current with different quiescent points, resulting in better RF power and gain at 2.7 GHz.
| Original language | English |
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| Title of host publication | CS MANTECH 2021 - 2021 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers |
| Publisher | CS Mantech |
| Pages | 81-84 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781893580312 |
| State | Published - 2021 |
| Externally published | Yes |
| Event | 35th Annual International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2021 - Orlando, Virtual, United States Duration: 24 05 2021 → 27 05 2021 |
Publication series
| Name | CS MANTECH 2021 - 2021 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers |
|---|
Conference
| Conference | 35th Annual International Conference on Compound Semiconductor Manufacturing Technology, CS MANTECH 2021 |
|---|---|
| Country/Territory | United States |
| City | Orlando, Virtual |
| Period | 24/05/21 → 27/05/21 |
Bibliographical note
Publisher Copyright:© 2021 CS MANTECH 2021 - 2021 International Conference on Compound Semiconductor Manufacturing Technology, Digest of Papers. All Rights Reserved.
Keywords
- C-V
- GaN
- GaN cap
- HEMT
- Interface
- Pulsed I-V
- Trap