Laser-Trimming on the Wafer

A Powerful New Tool in Precision-I.C. Manufacture Provides Accurate, Easy-to-Use Circuits at Low Cost

Production of useful linear integrated circuits (IC's) has been made practical by the simple fact that congruent circuit elements on a given chip tend to match one another. All modern linear-IC designs exploit this inherent matching between Vbe's, resistance values, hFE's, etc., to obtain produce-able circuits capable of meeting today's rather tight offset, linearity, and temperature-coefficient specifications. Read full article



R. Wagner