Title :
The Influence of Laser Spot on Resistance of Chip Resistors
Author :
Zhijuan Wang ; Xiaodong Yan ; Yuan Sun ; Xiaobing Zhao
Author_Institution :
Inf. Eng. Coll., Minzu Univ. of China, Beijing, China
Abstract :
Laser trimming adjusts the resistance of chip resistors accurately. The pulsing laser trims chip resistors using laser spot one by one. The resistance increased by one laser spot is called spot-increasing. Small spot-increasing leads to high precision. Spot-increasing is relates to the path of laser trimming. Firstly, the method is introduced that study the influence of laser spot on resistance. Secondly, the influence of laser spot on resistance of chip resistors is given. Finally, the conclusions are validated by experiment data.
Keywords :
laser beam applications; resistors; laser spot; laser trimming; pulsing laser trims chip resistors; spot-increasing; Conductivity; Educational institutions; Electric resistance; Laser beam cutting; Laser theory; Monitoring; Optical pulses; Resistors; Sun; Voltage;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504287
