Does anyone know much on transistor layout

[nolson1]

Here's a pic of a transistor fabricated. I have no clue what part is the gate or what. I'm trying to figure it out since i need the W/L ratio. This doesn't look like the standard transistors I've seen made on silicon.

http://www.public.iastate.edu/~nolson1/problem/transistor.jpg

Hope this isn't too 'Off Topic'
haha

 

[Colt45]

Transistors don't have gates

but uh.. I have no idea. never dealt with that end of things.

 

[element]

my guess is the bottom is the base, the other 2 are emitter and collector, but to find out which I'd use a diode check on the ole multimeter.

 

[WhiteKnight]

Originally posted by: element
my guess is the bottom is the base, the other 2 are emitter and collector, but to find out which I'd use a diode check on the ole multimeter.

Agreed. Just look for the .7V drop.

 

[element]

Originally posted by: Colt45
Transistors don't have gates

but uh.. I have no idea. never dealt with that end of things.

depends if it's bipolar or MOS, bipolar is emitter/ base /collector, and MOS is source/ gate /drain

 

[PottedMeat]

isnt the bottom one the gate - with the Drain and source to the left and right ( cant tell which, i dont think it matters for this case anyway) all you need to the width and length right?

 

[element]

is it me, or is the source and drain or emitter and collector both connected together?

 

[dighn]

try the highly technica forum