这种情况下也有办法，比如用激光微调（laser trimming）。用激光烧掉薄膜电阻的部分电阻体可以增大其阻值，烧掉电容器的部分电极可减小其电容量，利用这些基本原理可以实现很多精密的校...
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... Laser machining 激光切割器 Laser trimming 激光整修 BT Laser beam applications 激光发热应用 ...
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laser trimming technique 激光微导术
Laser-trimming 雷射微修整
laser trimming equipment 激光微调装置
laser trimming thick film 厚膜雷射修整
laser trimming path 激光刻蚀路径
Laser trimming system 激光调阻系统
So they have the manufacture error that is less than 40%. Generally, using laser trimming to adjusts the resistance of chip resistors accurately.
片式电阻是通过丝网将电阻材料印刷到电阻基片上的,其阻值通常具有不大于40%的制造误差,一般采用激光调阻法对其阻值进行修调。
参考来源 - 激光调阻的阻值关系研究及其控制策略分析·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
A novel laser trimming method is developed for microwave ceramic dielectric resonator.
提出一种采用激光微调微波陶瓷介质谐振器的方法。
By laser trimming the differential capacitance amplifier, the offset current of circuit is reduced to under 1.
通过对内部的差动电容检测器进行激光修调，使该伺服电路的零偏电流小于1。
This paper introduces the basic principle, the methods and the system constitution of the laser trimming technology for precise resistors in microelectronics.
介绍微电子学中精密电阻的激光微调原理、系统组成及微调方法。
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