Home www.play-hookey.com Tue, 02-21-2017
| Direct Current | Alternating Current | Semiconductors | Digital | Logic Families | Digital Experiments | Computers |
| Analog | Analog Experiments | Oscillators | Optics | HTML Test |
| Basic Semiconductor Structures | Field Effect Transistors (FETs) | Adding More Junctions | Specialized Devices |
| The Four-Layer Diode | The Silicon Controlled Rectifier | The Silicon Controlled Switch | The Diac and Triac |

Semiconductors: Adding More Junctions

The transistors we studied earlier have no more than two junctions, to form NPN or PNP bipolar transistors. What happens if we build devices with more junctions? What might a PNPN device be able to do? How about a 5-layer device, either PNPNP or NPNPN? Could we make any practical use of such a device?




All pages on www.play-hookey.com copyright © 1996, 2000-2015 by Ken Bigelow
Please address queries and suggestions to: webmaster@play-hookey.com