Laser trimming

Laser-trimmed precision thin-film resistor network from Fluke, used in the Keithley DMM7510 multimeter. Ceramic backed with glass hermetic seal cover. Laser trim marks are visible in the grey resistive material

High speed R-Laser Trimmer with a pressure chamber

Laser trimming is the manufacturing process of using a laser to adjust the operating parameters of an electronic circuit.

One of the most common applications uses a laser to burn away small portions of resistors, raising their resistance value. The burning operation can be conducted while the circuit is being tested by automatic test equipment, leading to optimum final values for the resistor(s) in the circuit.

单词	Laser trimming
释义	Laser trimming 英语百科 Laser trimming Laser trimming is the manufacturing process of using a laser to adjust the operating parameters of an electronic circuit. One of the most common applications uses a laser to burn away small portions of resistors, raising their resistance value. The burning operation can be conducted while the circuit is being tested by automatic test equipment, leading to optimum final values for the resistor(s) in the circuit.
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