computing sheet resistance of a ink

Discussion in 'Homework Help' started by braddy, Sep 10, 2009.

  1. braddy

    Thread Starter Well-Known Member

    Dec 29, 2004
    83
    0
    Hi,
    i would like to have some hints on a problem I have. The context is VLSI and thick film bipolar IC.

    I have a circuit containing a resistors ( especially a resistor at the emitter)
    The question is how to approximate the sheet resistance of the ink be to have 1 [mA] in the collector( if Vdd=[5V] and emittter base voltage of 0.7 [V])

    Thank you
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,535
    I can't help you directly on this, but basically sheet resistance is ohms per square. This is a constant for the material, you change the size of the square (as in to point) the ohms value stays the same, though the wattage changes. So it can be broken down into geometry, figure how many squares are in a shape, then treat it like a circuit.
     
  3. jit26

    New Member

    Sep 12, 2009
    11
    0
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