which fabrication technology of vlsi gives higher capacitance

maheshkumar.g · May 5, 2013

hi all,
i want to know which fabrication technology 90 nm & 28 nm will result in higher capacitance and why
thank you

OhaAmo · May 5, 2013

higher capacitance of which object?

artmalik · May 5, 2013

Well capacitance is directly proportion to oxide thickness of MOS and cap between the metal layers. it is simple answer it is 90nm will offer you more cap. On the other hand cap is not the most important criterion, it is the speed of the device which is dependent on voltage, size of the routes etc. As you see the speeds have been increasing so less cap to charge and discharge.

karan1207 · May 8, 2013

artmalik said:
Well capacitance is directly proportion to oxide thickness of MOS and cap between the metal layers. it is simple answer it is 90nm will offer you more cap. On the other hand cap is not the most important criterion, it is the speed of the device which is dependent on voltage, size of the routes etc. As you see the speeds have been increasing so less cap to charge and discharge.

The capacitance is actually inversely proportional to the oxide thickness. C= ξA/d where d= distance between the plates. So, as the thickness of oxide goes on decreasing, the distance between the gate and substrate reduces and cap goes up.

which fabrication technology of vlsi gives higher capacitance

maheshkumar.g

Member level 1

OhaAmo

Member level 4

artmalik

Full Member level 5

karan1207

Newbie level 5

Similar threads

which fabrication technology of vlsi gives higher capacitance

maheshkumar.g

Member level 1

OhaAmo

Member level 4

artmalik

Full Member level 5

karan1207

Newbie level 5

Similar threads

Privacy & Transparency

Privacy & Transparency