Chapter 15, Problem 15.51P

Interpretation Introduction

Interpretation:

The analyte do to a chemical-sensing field effect transistor to produce a signal related to the activity of analyte has to be explained.

Concept Introduction:

Chemical-sensing field effect transistor:

The field effect transistor base is constructed of $\text{p-Si}$ with two n-type regions called source and drain. The metal gate between source and drain is an insulating material of ${\text{SiO}}_{\text{2}}$ which is overcoated by conductive metal. The gate potential controls the current between source and drain.