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Integrated HEMT and Lateral Field-Effect Rectifier Combinations, Methods, and SystemsAlGaN/GaN 增強型異質結場效應晶體管的製備

总结

III-nitride compound semiconductors have the merits of wide band gap, high breakdown field, and large thermal conductivity, which results in well designed AlGaN/GaN heterojunction field-effect transistors. This transistor is capable of high temperature operation, suitable for high temperature integrated circuits. In the direct-coupled FET logic (DCFL), enhancement-mode HFETs are used as the drives while the depletion-mode HFETs are used as the load. In order to implement DCFL integrated circuits, a technology for monolithic initegration of enhancement-mode and depletion-mode (E/D) HFETs is needed.

This invention discloses a method of fabricating enhancement-mode AlGaN/GaN HFETs using fluoride-based plasma treatment and post-gate annealing.
It is effective and highly reproducible for fabricating self-aligned E-mode AlGaN/GaN HFETs. With the use of fluorine ions, which have strong electronegativity, it reduces treatment or implantation induced damages while maintaining stability.

This invention can be applicable in Single supply voltage RF/microwave integrated circuits like low-noise amplifiers, oscillators, mixers, and power amplifiers as well as in GaN-based digital ICs for high temperature electronics, which are demanded by automotive and aerospace applications, chemical reactor controllers, and oil-drilling equipment, etc.

技术优势

1. A strictly self-aligned approach
2. No additional photolithography: cost saving
3. Additional reduction of gate leakage current: wider operating range, no need for level shifting
4. Excellent cross-sample uniformity

技术应用

- Single supply voltage RF/microwave integrated circuits: low-noise amplifiers, oscillators, mixers, and
power amplifiers
- GaN-based digital ICs for high temperature electronics, which are demanded by automotive and
aerospace applications, chemical reactor controllers, and oil-drilling equipment, etc.

附加资料

Patent Number: CN101562182B
Application Number: CN200910133336A
Inventor: Chen, JING | Chen, Wan-jun | Zhou, Chun-hua
Priority Date: 2 Apr 2008
Priority Number: CN101562182B
Application Date: 2 Apr 2009
Publication Date: 8 Aug 2012
IPC Current: H01L002706 | H01L00218248 | H01L002943
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Integrated hemt and a combination, method as well as a system of a horizontal field effect rectifier
Usefulness: Integrated hemt and a combination, method as well as a system of a horizontal field effect rectifier
Summary: An integrated power device structure for a switch power converter (claimed).
Novelty: Integrated power device structure for switch power converter, comprises mixed diode including parallel Schottky diode and field control diode, and heterojunction field effect transistor

主要类别

电子

细分类别

电路设计

申请日期

2 Apr 2009

申请号码

Chinese 200910133336.4

专利信息

Chinese ZL200910133336.4

ID号码

TTC.PA.265

国家/地区

香港