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- Laser_trimming abstract "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. The resistance value of a film resistor is defined by its geometric dimensions (length, width, height) and the resistor material. A lateral cut in the resistor material by the laser narrows or lengthens the current flow path and increases the resistance value. The same effect is obtained whether the laser changes a thick-film or a thin-film resistor on a ceramic substrate or an SMD-resistor on a SMD circuit. The SMD-resistor is produced with the same technology and may be laser trimmed as well.Trimmable chip capacitors are built up as multilayer plate capacitors. Vaporizing the top layer with a laser decreases the capacitance by reducing the area of the top electrode.Passive trim is the adjustment of a resistor to a given value. If the trimming adjusts the whole circuit output such as output voltage, frequency, or switching threshold, this is called active trim. During the trim process, the corresponding parameter is measured continuously and compared to the programmed nominal value. The laser stops automatically when the value reaches the nominal value.".
- Laser_trimming thumbnail Pressure_Chambre.png?width=300.
- Laser_trimming wikiPageExternalLink Thick-filmHybrids.php.
- Laser_trimming wikiPageExternalLink www.epp-germany.com.
- Laser_trimming wikiPageExternalLink www.ls-laser-systems.com.
- Laser_trimming wikiPageExternalLink www.microcontact.ch.
- Laser_trimming wikiPageID "1758144".
- Laser_trimming wikiPageRevisionID "544001481".
- Laser_trimming hasPhotoCollection Laser_trimming.
- Laser_trimming subject Category:Semiconductor_device_fabrication.
- Laser_trimming comment "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.".
- Laser_trimming label "Laser trimming".
- Laser_trimming label "Lasertrimmen".
- Laser_trimming sameAs Lasertrimmen.
- Laser_trimming sameAs m.05tn61.
- Laser_trimming sameAs Q1457342.
- Laser_trimming sameAs Q1457342.
- Laser_trimming wasDerivedFrom Laser_trimming?oldid=544001481.
- Laser_trimming depiction Pressure_Chambre.png.
- Laser_trimming isPrimaryTopicOf Laser_trimming.