Interesting, how did that happen? I'm sure this is on topic, of course.
Stable simple dc amplifiers
Mar 11, 2012
24 Replies
Photoemission from silicon is a commonly-used diagnostic tool. Ordinary recombination produces ~1.1 um photons, which you can see through a thinned die, and hot carriers produce visible photons.
Cheers
Phil Hobbs
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net
OK; Q1 NPN base is emitter of substrate lateral with that beta of
0.000001, Q2 NPN base is the collector.. Still think a vertical PNP (nice drawing!) was used as a beta killer.
Too bad that the glow effect was not looked into..then become an early LED and maybe an analog controllable LED.
That was back in the days when we didn't have multi-layer metal, so an N+ crossover made an unintended device that light-emitted. ...Jim Thompson
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required