• The resistance substrates comes in different types of value sheets
• Main manufactures are : Ohmega, Rohm, Shipely
• Bar Type
• Multiple Squares (N≥1) • Partial Squares (N<1)
• Meander Type
• Basically, a meander resisitor can be considered as a bar resistor
with the exception of the corner squares (right-angle bends).
Due to the change in current density at right angle path,
the effective number of square is 0.56.
e.g., sheet resistance (Rs) = 100Ω/ϒ
No. of squares = 37
No. of corner squares = 16
Total No. of effective squares = 37+(16 x 0.56)
Resistance value = 46 x 100
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