Recent content by Obelisk

I think I am stalled, really stalled on this one! The only other piece of information that describes / models this physical situation would be: T = To + (Tf - To) e ^(-t/tau). I know that I am supposed to obtain Tf as the steady state wafer temperature and tau as the time heating...

The boron atoms would collectively carry 100 X 1.602 X 10 ^ -19 J since 1 keV carries 1.602 X 10 ^ -19 J How many atoms impinging per second is not given, is this something I can calculate from the information that has been provided in the question? If yes, what equation is required? Thanks.

Homework Statement A 50mm wafer, 2mm thick is implanted with Boron at 100keV and 1mA. Considering only conductive cooling, given that thermal resistance is 10K/W, to room temperature of 25oC, determine the steady state wafer temperature and also the time constant for heating Homework...

1. This is originally a physical problem in semiconductors 2. Problem has been resolved to one equation with decimal powers 3. 1.6x^0.65 - 1.4x^0.2 = 0.2 By inspection, x could easily be 1 but that is not the solution as the value for x is less than 1. How can I resolve this...

To Mark44, HallsofIvy and other members who helped or looked into my posting, thanks so much! The good news is I finally resolved the problems and I am so glad I can now move on!

Thank you all for your help so far. Well, I have used another approach in resolving this this problem but I am wondering if anyone could suggest a way to simplify this further. I wish to express this equation in terms of x: d = 10^-20 x^(-18/4) x^-1. So, is there a way to write this equation...

Thanks for your ideas so far. Well, by squaring it and/or dividing it by 50.12, I am not going to be able to obtain the value of x still which should be in the interval 0.5 < x < 2.5 (from the theory of the physical problem). The value of w is unknown and the only way of finding it is by...

Homework Statement The problem is a semiconductor question which I have resolved and gotten the equation: w = (50.12 x) ^ 0.5 From the knowledge of this system, x is in an interval such that 0.5 < x < 2.5 What mathematical method of solution would help find the solution to this...