Abstract
We discuss the heavily-doped Zn diffusion properties that result from two-step rapid thermal annealing processes and characterize the use of Au/Zn-based metal alloys as ohmic contacts, in a double floating guard-ring avalanche photodiode (APD) structure with recess etching. Bandwidth measurements were used to characterize the APD. The hole concentration and the specific contact resistance of the APD structure were found to be 1 ×10 19 cm-3 and 2.8 × 10-6 Ωcm -2, respectively. In addition, the gain-bandwidth product of the APD was found to be over 80 GHz.
Original language | English |
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Pages (from-to) | 1925-1928 |
Number of pages | 4 |
Journal | Journal of the Korean Physical Society |
Volume | 50 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2007 Jun |
Keywords
- Avalanche photodiode
- Chemical vapor deposition
- Diffusion
- Indium phosphide
ASJC Scopus subject areas
- Physics and Astronomy(all)