Si better than Ge?

I was wondering why is Si used more than Ge in semiconducotor fabrication? Are there any other reasons than -Si can withstand high temeprature -It is widely available with low cost Any more? Thanks Rohit

Asked By: rskurane
On: Jun 7, 2005 12:43:44 PM

Comments(4)

Not only threshold voltage.the main reason is si has less leakage current thean Ge.its fband gap energy is greater than Ge.

Comment By: karun
On: Oct 30, 2010 12:37:38 AM

for more points read the first article of S.M.Sze, VLSI TEchnology

Comment By: sainiparvesh
On: Jun 12, 2005 10:17:08 AM

rskurane si has many more .you know we had a 10 mark question in my btech last year in mems where our mam described the differences and advantages of si over ge.but all those were material science type and i dont remeber those.you can google that and find out.

Comment By: venkateshr
On: Jun 8, 2005 2:00:33 AM

Threshold voltage is one of the other main factors. Si has 0.6V and Ge has 0.2. Lower threshold means more leakage..

Comment By: praveen_sam
On: Jun 7, 2005 3:53:53 PM

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