Hi,
Is anyone familiar with conductive tape? I thought conductive tape should have a resistance very small. And the supplier said it has a resistance of less than 5ohms/square.
http://www.2spi.com/catalog/spec_prep/cond_adhes-tapes.shtml
But I took a measurement today. I use a small part of conductive tape to connect two pins of a blank chip carrier. The resistance I measure is around 500kohm!! I measured many times on using different methods, I am sure the resistance of the conductive tape I use is on the order of kohms.

Why?
Is anyone familiar with conductive tape? I thought conductive tape should have a resistance very small. And the supplier said it has a resistance of less than 5ohms/square.
http://www.2spi.com/catalog/spec_prep/cond_adhes-tapes.shtml
But I took a measurement today. I use a small part of conductive tape to connect two pins of a blank chip carrier. The resistance I measure is around 500kohm!! I measured many times on using different methods, I am sure the resistance of the conductive tape I use is on the order of kohms.

Why?