Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

MOSFET long channel length

Status
Not open for further replies.
Z

zubair.mehmood

Newbie level 4
Joined
Jun 6, 2010
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
pakistan
Activity points
1,335
hi

what is the further benefits or tradeoffs in extending the channel length of a MOSFET more towards higher lengths. (Tradeoffs are clear with short channel and long channel) If we further increase the channel length , what may be the possibilities.

Thanks
 

With longer channel lengths you avoid the short channel effects (sic!) and achieve better matching (if necessary).

If you need to keep the same W/L ratio, the consumed area rises with the square of L . And area costs money.
 
  • Like
Reactions: CACTUS

    C

    CACTUS

    Points: 2
    Helpful Answer Positive Rating
Long channel provide higher output resistance for transistor,
Gate capacitance will be larger so lower speed (larger area) (same perspective can found that at the same voltage VGS you can achieve higher current for short channel mosets so better speed)
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top