Metal Sheet Resistance

Suragus develops and manufactures non contact measurement devices which are able to measure the sheet resistance resistivity conductivity and layer thickness on thin films.

Metal sheet resistance.

The dc resistance of a conductor is calculated using the equation where. The resistance between opposite sides of a square. We note that it is a property of the particular layer doping and thickness. ρ is the resistivity of the conductor in ω m.

What is sheet resistance. Sheet resistance often called sheet resistivity is a measure of resistance of thin films that are nominally uniform in thickness. Doped semiconductor regions and the resistors that are screen printed onto the substrates of thick film hybrid microcircuits. The sheet resistance of graphene under the metal r sk and in channel r sh are extracted to be 670 ω and 1840 ω respectively.

Resistivity is the inherent property of the material which gives it electrical resistance. It is commonly used to characterize materials made by semiconductor doping metal deposition resistive paste printing and glass coating. L is the length in metres. It is a measure of the lateral resistance through a thin square of material i e.

As a result the value of specific contact resistivity ρ c is determined to be 3 3 10 6 ω cm 2 which is three times as large as the unmodified value. In simple form two equal sized electrodes in good contact with the surface of the sample is used for measuring surface resistivity. The calculator converts theoretical values based on the laws of physics. This quantity is important enough that we give it a new name.

It is sometimes called specific resistance. The quantity ρ t has units of resistance. Sheet resistance look again at the resistance equation with uniform resistivity. The utility of sheet resistance as opposed to.

Resistivity of materials which is best. Sheet resistance is the resistance of a thin sheet of material which when multiplied by the thickness in cm gives the value of resistivity. Examples of these processes are. A is the cross sectional area in metres.

It can be seen that the resistivity of copper and the resistivity of brass both low and in view of their cost relative to silver and gold they become cost effective materials to use for many wires.