Abstract
Surface passivation effects on the emission characteristics of gated Si field emitters were studied by exposing the samples to a H2 plasma for 2 min before testing. The H2 plasma was generated at 2 mTorr with 50 W source power and flow rate of 20 sccm. No rf power was applied to the stage to avoid sputtering of emitter tips. The emission current at a gate voltage of 100 V increased from 152 to 278 μA and the turn-on voltage reduced from 32 to 26 V after H2 passivation. Emitter tips were also coated with MoSi and HfC to improve their emission characteristics. At a gate voltage of 100 V, the emission current from an array of 100 tips increased from 230 μm for uncoated emitters to 268 μA for emitters coated with MoSi and 389 μA for samples coated with HfC.
| Original language | English |
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| Title of host publication | Proceedings of the IEEE International Vacuum Microelectronics Conference, IVMC |
| Publisher | IEEE |
| Pages | 291-292 |
| ISBN (Print) | 0-7803-5096-0 |
| DOIs | |
| Publication status | Published - 1998 |
| Externally published | Yes |
| Event | Eleventh International Vacuum Microelectronics Conference, IVMC 1998 - Asheville, NC, USA Duration: 19 Jul 1998 → 24 Jul 1998 |
Conference
| Conference | Eleventh International Vacuum Microelectronics Conference, IVMC 1998 |
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| City | Asheville, NC, USA |
| Period | 19/07/98 → 24/07/98 |