WHICH IS FAST? BJT or MOS

[electronics_kumar]

fast switching bjt

out of this two..which is fastest.... why it is so....

 

[ee484]

ft fmax mosfet bjt

Depending on condition, but give current condition, in general BJT is faster because gm is larger.
The simple metric to compare between two is ft = gm/cgs, roughly.

 

[the_risk_master]

fast bjt

BJT is much faster than MOS

 

[vivek_bahire]

bjt is faster than mosfet why?

Bjt is fatsre. cause its gm is higher. hence it's ft.

 

[rania_hassan]

bjt and mos

BJT is faster than MOS also Si_Ge BJT is faster than normal BJT
Rania

 

[master_picengineer]

why bjt faster than mosfet

BJT is faster but if you wanna design high speed devices use GaAs Transistors,

 

[Kryptonite]

frequency response bjt

I thought MOSFET is faster in switching that BJT!!!

Can u guys elaborate on that?

 

[master_picengineer]

bjt or fet,which one is faster

Hi,
You get a detailed response to your question in the book:

Fundamental of Semiconductor by Bahzad Rezavi

 

[rfndmw]

fast gaas transistor switch

BJT is faster...

 

[bas]

fastest switching bjt time

hi
i pretty sure that mosfet transistor are known and used for their fast switching capabiblity especially in power electronics

 

[forkschgrad]

bipolar transistor fast switching

BJT i think.

 

[srinivasulu]

comparison bw mos and bjt

mosfet is faster .because majoriy current flow an in bjt both carrir flow,

 

[nguyennam]

bjt speed

I do not understand well your question.

I myself met both BJT and MOS transistors in UHF systems. So I do not see any evidence for which transistor type is faster over the rest in general.

 

[suru]

reasons from bjt to nmos/

mosfet is faster because of scaling. small channel length. even though it is slower but distance to be travelled is less.

 

[venkat_kvr]

bjt vs mos faster?

BJT is faster than MOS

 

[RFCMOS]

bjt mos gm

BJT is much more faster than MOS (higher ft)

 

[saas123qa]

why bjt is faster than mosfet

BJT is faster and the high speed processor is made by BJT

 

[springf2000]

bjt faster than mosfet

some cmos is fast and some MOS is fast ,so y should choose the device more carefully

 

[mr_anderson]

power dissipation mos bjt

CMOS is faster than BJT, check out switching times for CMOS and BJT

 

[vijayanand_ME]

is bjt faster than mosfet

CMOS is faster than MOS.
Scaling in the channel width makes mos faster.
Now a days processor operating >4GHz using mos technology.
not only because of low power dissipation and also because of the faster swiching characteristics of MOS.

-VJ