Annealing of some diodes and trimming of carbon resistors using CW Nd

Ibrahim, Saad El-Din El-Sadig Mohammed; Supervisor, - Nafie Abdel Latif
Supervisor, -co-Abdalla Salih Ali

dc.contributor.author	Ibrahim, Saad El-Din El-Sadig Mohammed
dc.contributor.author	Supervisor, - Nafie Abdel Latif Supervisor, -co-Abdalla Salih Ali
dc.date.accessioned	2013-11-27T08:12:55Z
dc.date.available	2013-11-27T08:12:55Z
dc.date.issued	2007-09-01
dc.identifier.citation	Ibrahim , Saad El-Din El-Sadig Mohammed . Annealing of some diodes and trimming of carbon resistors using CW Nd : YAG laser / Saad El-Din El-Sadig Mohammed Ibrahim ; Nafie Abdel Latif , Abdalla Salih Ali .- Khartoum : sudan university of scince and technology , Institute Of Laser , 2007 .- 67P. : ill. ; 28cm .- M.Sc.	en_US
dc.identifier.uri	http://repository.sustech.edu/handle/123456789/2505
dc.description	Thesis	en_US
dc.description.abstract	In this work, the I-V characteristics of the silicon diode were investigated by applying 5W from CW Nd: YAG laser for 10, 20, and 30 seconds, respectively. The results showed that different exposure times changed the biasing voltage of the diode from 0.7V to 0.65V only. In case of silicon transistor and operational amplifier, the results also showed that the output signal did not changed or distorted, although they were exposed to high power from CW Nd:YAG laser reached to 70W. Trimming of fixed carbon resistors using the same Nd:YAG laser with powers of 20,25, and 30W and exposure times of 1,2,,3,5, and 10 seconds for several times, gave different resistance values . The results illustrated that low power and long exposure time (longer than 10 seconds) changed the resistor value gradually so it can be controlled to reach the value that is suitable for specific application.	en_US
dc.description.sponsorship	Sudan University Of Science and Technology	en_US
dc.language.iso	en	en_US
dc.publisher	sudan university of scince and technology	en_US
dc.subject	Silicon Transistor	en_US
dc.subject	Lasers Types	en_US
dc.title	Annealing of some diodes and trimming of carbon resistors using CW Nd	en_US
dc.type	Thesis	en_US