Work on electrical components such as resistors, capacitors, diodes, integrated circuits (ICs), hybrids, crystals, crystal oscillators, filters, fuses, heaters, magnetics, microcircuits, relays, semiconductors, thermistors. Formal coursework, training, experience and/or knowledge in the design, analysis, and/or construction of electrical parts and circuits, semiconductor physics and/or operation of devices such as hybrids, integrated circuits, transistors, diodes and capacitors.