Introduction:
Semiconductor gauges are widely used in various industries for measuring strain and stress. They offer several advantages compared to conventional strain gauges. In this response, we will discuss the advantages of semiconductor gauges and explain why sensitivity to temperature changes is not one of them.

Advantages of Semiconductor Gauges:
1. Excellent hysteresis characteristics: Semiconductor gauges exhibit excellent hysteresis characteristics, meaning they can accurately measure strain even when the applied load is removed and reapplied. This makes them highly reliable and suitable for applications where cyclic loading is involved.

2. High fatigue life: Semiconductor gauges have a high fatigue life, meaning they can withstand repeated loading and unloading cycles without experiencing significant degradation. This makes them ideal for long-term measurements in applications with high cyclic loading, such as structural monitoring.

3. Smaller size: Semiconductor gauges are typically smaller in size compared to conventional strain gauges. Their compact size allows for easier installation in tight spaces and enables the measurement of strain in areas where conventional gauges may not fit.

4. High sensitivity: Semiconductor gauges offer high sensitivity, allowing for accurate measurement of small strain variations. This makes them suitable for applications where precise strain measurements are required, such as in microelectromechanical systems (MEMS) and nanotechnology.

Why sensitivity to temperature changes is not an advantage:
While semiconductor gauges offer many advantages, they are not inherently less sensitive to temperature changes compared to conventional strain gauges. In fact, both types of gauges can be affected by temperature variations. Sensitivity to temperature changes depends on the specific design and materials used in the gauge.

Conclusion:
In summary, semiconductor gauges have several advantages over conventional strain gauges, including excellent hysteresis characteristics, high fatigue life, and smaller size. However, they are not inherently less sensitive to temperature changes. The sensitivity to temperature variations depends on the specific design and materials used in the gauge. Therefore, option B, which states that semiconductor gauges are least sensitive to temperature changes, is not a correct advantage of semiconductor gauges.