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首页> 外文期刊>IEEE Transactions on Components and Packaging Technologies >Quantitative Analysis of Resistance Tolerance of Polymer Thick Film Printed Resistors
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Quantitative Analysis of Resistance Tolerance of Polymer Thick Film Printed Resistors

机译：聚合物厚膜印刷电阻器电阻容限的定量分析

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摘要

Low cost methodologies of resistor fabrications are needed for cost effective embedding of resistors into polymeric substrates. Polymer thick film resistors (PTFRs) are low temperature processable, low cost resistors with a wide resistivity range. The electrical resistance variation of these resistors is in the range of around plusmn20% after deposition and trimming procedure is employed to tune the resistances to meet specifications. This adds to the cost and complicates the fabrication process when the resistors are embedded. In this study, the influences of PTFRs geometries on the resistance tolerances were investigated. Results indicated that the resistance accuracy of stencil printed resistors was markedly higher than that of the screen-printed resistors. The screen-printed resistor edge geometries were observed to be rough. Finite element method analyses revealed that the resistance tolerances were associated with edge roughness. Remedies to reduced variations were proposed and the relationship between resistance tolerances and aperture orientations was also outlined
机译：需要电阻器制造的低成本方法，以将电阻器成本有效地嵌入聚合物基板中。聚合物厚膜电阻器（PTFR）是可低温加工的低成本电阻器，具有宽电阻率范围。这些电阻的电阻变化在沉积和修整程序调整电阻以满足规格后，在±20％左右的范围内。当嵌入电阻器时，这增加了成本并且使制造过程复杂化。在这项研究中，研究了PTFR的几何形状对电阻公差的影响。结果表明，模版印刷电阻器的电阻精度明显高于丝网印刷电阻器。观察到丝网印刷的电阻器边缘几何形状很粗糙。有限元分析表明，电阻公差与边缘粗糙度有关。提出了减少变化的补救措施，并概述了电阻公差与光圈方向之间的关系

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