Infant Mortality (Early Failures)
The time during which circuits are failing at a decreasing rate (during the first few hundred hours of operation).
Synonymous with "composition" and "paste" when relating to screenable thick-film materials, usually consisting of glass frit, metals, metal oxide, and solvents.
Insulation Resistance (IR)
The resistance to current flow when a potential is applied (IR is typically measured in megohms).
The slit or channel cut in a resistor during trimming by laser beam or abrasive jet.