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Proceedings Paper

The influence investigation of laser cutting path on the resistance of chip resistors
Author(s): Zhi-Juan Wang; Jian-Hua Tang; Qian-Yang Yu
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Paper Abstract

Laser trimming adjusts the resistance of chip resistors accurately. The laser-cutting path that is vertical to the current flow is called transverse cutting. It increases the resistance quickly. The laser-cutting path that is parallel to the current flow is called ordinate cutting. It increases the resistance slowly. Using numerical results of resistance-calculation formula, the influence of transverse cutting on the resistance is analyzed. With resistor-subsection method, the relationship of resistance and ordinate cutting is studied. And quantitative formulae of them are given. The conclusions can provide some control strategies to improve the trimming precision and trimming efficiency.

Paper Details

Date Published: 13 January 2005
PDF: 10 pages
Proc. SPIE 5629, Lasers in Material Processing and Manufacturing II, (13 January 2005); doi: 10.1117/12.575284
Show Author Affiliations
Zhi-Juan Wang, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)
Jian-Hua Tang, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)
Qian-Yang Yu, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)


Published in SPIE Proceedings Vol. 5629:
Lasers in Material Processing and Manufacturing II
ShuShen Deng; Akira Matsunawa; Y. Lawrence Yao; Minlin Zhong, Editor(s)

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