W/L ratio of 2n7000 - Electronic Circuits Projects Diagrams Free

FlinxSL · 29th May 2009, 10:49 PM

Hey, I am experimenting with CV measurements and I was wondering if anyone knew, or knew how to find out what the W/L is for the 2n7000.

Do I have to call up FS to get this info? Will they tell me?

Sceadwian · 29th May 2009, 11:59 PM

I hate acronyms I didn't even understand that post. What are CV W/L and FS?

FlinxSL · 30th May 2009, 12:13 AM

CV - capacitance voltage
W/L - width/length
FS - fairchild semiconductor

blueroomelectronics · 30th May 2009, 12:23 AM

It's the same as any TO92 transistor.

What are you trying to build?

FlinxSL · 30th May 2009, 12:29 AM

I'm actually an intern at a semiconductor place, and I'm tasked with using an expensive piece of test equipment to make CV curves to verify that our process is making the right oxide thickness/doping levels etc.

To make sure I'm not getting bogus measurements I am using a known transistor so I can compare them to the datasheet, but the datasheet doesn't have everything.

captainkirksdog · 30th May 2009, 10:32 AM

Try using a transistor that does have more in the data sheet. I'd give the NTE123A a shot. It's a generic replacement for old fav's like the 2N2222, 2N3904, 2N4401, and the 923C. I haven't looked at a DS for the 2N7000 in a while, so I can't say if the NTE123A will match your freq/gain/C-B-E voltage/current requirements or not. But I'd bet the data is a lot easier to find.<ckd>

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29th May 2009, 10:49 PM	#1
FlinxSL	W/L ratio of 2n7000 Hey, I am experimenting with CV measurements and I was wondering if anyone knew, or knew how to find out what the W/L is for the 2n7000. Do I have to call up FS to get this info? Will they tell me?

29th May 2009, 11:59 PM	#2
Sceadwian	I hate acronyms I didn't even understand that post. What are CV W/L and FS? __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

30th May 2009, 12:13 AM	#3
FlinxSL	CV - capacitance voltage W/L - width/length FS - fairchild semiconductor

30th May 2009, 12:23 AM	#4
blueroomelectronics	It's the same as any TO92 transistor. What are you trying to build? __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

30th May 2009, 12:29 AM	#5
FlinxSL	I'm actually an intern at a semiconductor place, and I'm tasked with using an expensive piece of test equipment to make CV curves to verify that our process is making the right oxide thickness/doping levels etc. To make sure I'm not getting bogus measurements I am using a known transistor so I can compare them to the datasheet, but the datasheet doesn't have everything.

30th May 2009, 10:32 AM	#6
captainkirksdog	Try using a transistor that does have more in the data sheet. I'd give the NTE123A a shot. It's a generic replacement for old fav's like the 2N2222, 2N3904, 2N4401, and the 923C. I haven't looked at a DS for the 2N7000 in a while, so I can't say if the NTE123A will match your freq/gain/C-B-E voltage/current requirements or not. But I'd bet the data is a lot easier to find.<ckd> __________________ <ckd> "Chance favors the prepared mind."--Louis Pasteur (1822 - 1895) -------------------------------------------------------- "There is only one good; knowledge, and one evil; ignorance." --Socrates 470B.C.?-399 B.C.?