How Reliability Testing Influences Wafer Material Selection
How Reliability Testing Influences Wafer Material Selection Introduction Every RF engineer, sensor designer, or optical system architect faces the same dilemma: which wafer material will survive the real-world conditions your device must endure? Temperature swings, mechanical stress, humidity, and long-term drift can turn a promising prototype into a field failure. Reliability testing is the bridge between a datasheet promise and actual performance — yet many teams treat it as an afterthought. This guide walks you through how reliability testing directly influences wafer material selection, from initial screening to final qualification. You will learn which tests matter for different applications, how to interpret results, and how to avoid costly material mismatches. Whether you are specifying lithium niobate for a SAW filter or quartz for a high-temperature sensor, the principles here apply. We focus on single-crystal wafers because their anisotropic properties make reliability te...