Semiconductor devices
First Claim
Patent Images
1. A semiconductor integrated circuit including:
- a first semiconductor device sensitive to a physico-chemical property of an ambient to which it is exposed and capable of producing an output signal dependent on said physico-chemical property,a second semiconductor device insensitive to said physico-chemical property but having a geometry and physical structure substantially identical with that of said first semiconductor device and being substantially in isothermal contact with said first semiconductor device, anddifferential amplifier means having an input coupled to outputs of said first and second semiconductor devices and having an output coupled to an input of one of said first and second semiconductors.
1 Assignment
0 Petitions
Accused Products
Abstract
A semiconductor integrated circuit for sensing a physico-chemical property of an ambient includes a pair of semiconductor devices (Q1, Q2) having a similar geometric and physical structure, one device (Q1) being sensitive to the property, the other being insensitive to the property, together with a differential amplifier (A1, A2, A3, A4, A5) having feedback connection to one of the pair of semiconductor devices.
36 Citations
8 Claims
-
1. A semiconductor integrated circuit including:
-
a first semiconductor device sensitive to a physico-chemical property of an ambient to which it is exposed and capable of producing an output signal dependent on said physico-chemical property, a second semiconductor device insensitive to said physico-chemical property but having a geometry and physical structure substantially identical with that of said first semiconductor device and being substantially in isothermal contact with said first semiconductor device, and differential amplifier means having an input coupled to outputs of said first and second semiconductor devices and having an output coupled to an input of one of said first and second semiconductors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification