Timeline for How can a phosphorous ion dope silicon when it is already ionized?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jul 16, 2016 at 19:03 | comment | added | Jon Custer | And? You need a path to ground to conduct the current. In this case that means electrons flowing from ground into the samples to preserve charge neutrality. | |
| Jul 16, 2016 at 17:11 | comment | added | Sparkler | I thought the beam is P+ ions (video) | |
| Jul 16, 2016 at 16:55 | comment | added | Jon Custer | @Sparkler - no, not really. You just need the path to ground and enough conductivity to handle the beam current. It really isn't much current at all, typically microAmps to 100's of milliAmps. Intrinsic silicon is not a problem. Sapphire is (without a coating). | |
| Jul 16, 2016 at 16:51 | comment | added | Sparkler | The binding energy of an electron to a donor (cation) and of a hole to an acceptor (anion) is "just" ~45meV. Is that what drives the neutralization via the grounded substrate? | |
| Aug 23, 2015 at 1:18 | vote | accept | hat | ||
| Aug 19, 2015 at 17:08 | history | answered | Jon Custer | CC BY-SA 3.0 |