curved mosfet idea

Nov 02, 2006 2 Replies
J

Hi,



I was thinking about how to make a mosfet have low on state resistance and also have low gate capacitance while not taking up too much space:



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I think this design should:


  1. minimize gate capacitance by making a longer gate (parallel capacitance)


  1. minimize the on-state resistance by making a wider current path (parallel resistance)

  2. keep the area used to a minimum

Any idea if this would be any good?



cheers, Jamie


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M

How would its cost compare with current, commercially available mosfets? Would it be more difficult to manufacture? (Would its construction cost make it more expensive?)

Give it a shot, let us know how it goes...

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J

"Any idea...? Yes. It wouldn't be any improvement. Calculate gate area (gate capacitance) versus _effective_ W (inversely proportional to ON resistance).

...Jim Thompson

| James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
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