Patent ID: 8333506

Claim:
A temperature sensor comprising: a first ceramic substrate having on a first surface a first temperature sensitive means and a first pair of conducting surface elements connected to each end of said first temperature sensitive means; a second ceramic substrate having at least one conducting via therethrough, said conducting via being aligned with one of said first pair of conducting surface elements; and a third ceramic substrate having on a first surface a second temperature sensitive means and a second pair of conducting surface elements connected to each end of said second temperature sensitive means, wherein one of said second pair of conducting surface elements is aligned with the conducting via of the second substrate, wherein the first pair of conducting surface elements is arranged such that a first element of the first pair runs substantially from the first temperature sensitive means to a distal end of the first ceramic substrate, and a second element of the first pair is adapted to be aligned with said conducting via and runs from the first temperature sensitive means to the middle of the first ceramic substrate, and wherein the second pair of conducting surface elements is arranged such that a first element of the second pair runs substantially from the second temperature sensitive means to a distal end of the third ceramic substrate, and a second element of the second pair is adapted to be to be aligned with said conducting via and runs from the second temperature sensitive means to the middle of the third ceramic substrate.