New trim configurations for laser trimmed thick-film resistors—theoretical analysis, numerical simulation and experimental verification

Wroński, Marek; Kaminski, S.; Miś, Edward; Dziedzic, Andrzej

doi:10.1016/j.microrel.2005.03.006

Cited by 7 publications

(5 citation statements)

References 4 publications

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“…The resistor trim curves produced by ResModel agree well with [5,6,23,27,33,34,36]. The "hot spot" locations at the laser cut path and the current directions also correlate very well with [18,20,27,36].…”

Section: Discussionsupporting

confidence: 52%

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Software Engineering of Resistive Elements Electrophysical Parameters Simulation in the Process of Laser Trimming

Кондрашов

Seredin

Chapkin³

et al. 2023

Electronics

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This study continues a series of papers covering the R&D of circuit simulators embedded into manufacturing equipment for the laser trimming of film and foil resistors intended to improve the final product’s performance and reduce process costs. Our paper describes the development of the ResModel laser trimming simulation software. Various types of trims and their features are presented for a circuit with a dynamic measurement DC source, and the optimal trim configurations are identified. The software can be used to estimate and display resistive element properties during the trimming such as its electrophysical parameters and their trends.

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Section: Discussionsupporting

confidence: 52%

“…The authors of [6,10,12,15] used general-purpose simulation software. S. Kaminski, E. Mis, M. Szymendera, and A. Dziedzic used ANSYS [33,34] to develop the new resistor configurations (with three pads) and laser trims. They also compared the simulation results with the actual trimming on the Aurel equipment [35].…”

Section: Introductionmentioning

confidence: 99%

Software Engineering of Resistive Elements Electrophysical Parameters Simulation in the Process of Laser Trimming

Кондрашов

Seredin

Chapkin³

et al. 2023

Electronics

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“…Significant research is being done into the effect of varying laser trim patterns on several performance parameters of thin film resistors (such as the temperature coefficient of resistance (TCR) and the target resistance value) [7], as well as the long-term stability of characteristics [8]. In addition, a number of researchers are studying the effect of the configuration of the resistors themselves on their characteristics when trimming [9,10]. Special attention is paid to foil resistors [11].…”

Section: Introductionmentioning

confidence: 99%

Circuit Simulation of Film Resistor Laser Trimming with a Measuring Voltage Source

Кондрашов¹,

Chapkin²,

Seredin

et al. 2022

Electronics

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This article continues the series of publications that describe in detail the process of development, research, and implementation of circuit modeling and machine vision mechanisms in industrial equipment for laser trimming of resistors in order to obtain products with better characteristics and increase the economic efficiency of the process. A circuit model of the process of laser trimming of film-resistive elements under the action of a measuring voltage source, as well as an algorithm for correcting this model during laser trimming, has been developed. The paper considers the principles of building a circuit model of film resistor cutting. The conductive resistive medium is defined with the component equations and the topology of the circuit model. A method of estimating the electric parameters of a resistor operating in the system with a measuring voltage source is shown. An equation system for the node voltages is defined, and the resistive layer parameters are analyzed as the circuit model structure changes during the cutting process.

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“…Significant research is being done into the effect of varying laser trim patterns on several performance parameters of thin film resistors (such as the temperature coefficient of resistance (TCR) and target resistance value) [7], as well as on the long-term stability of characteristics [8]. In addition, a number of researchers are studying the effect of the configuration of the resistors themselves on their characteristics when trimming [9,10]. Special attention is paid to foil resistors [11].…”

Section: Introductionmentioning

confidence: 99%

Circuit Simulation of Film Resistor Laser Trimming with a Measuring Voltage Source

Кондрашов¹,

Chapkin²,

Seredin³

et al. 2022

Preprint

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This paper considers the principles of building a circuit model of film resistor cutting. The conductive resistive medium is defined with the component equations and the topology of the circuit model. A method of estimating the electric parameters of a resistor operating in the system with a measuring voltage source is shown. An equation system for the node voltages is defined, and the resistive layer parameters are analyzed as the circuit model structure changes during the cutting process.

show abstract

New trim configurations for laser trimmed thick-film resistors—theoretical analysis, numerical simulation and experimental verification

Cited by 7 publications

References 4 publications

Software Engineering of Resistive Elements Electrophysical Parameters Simulation in the Process of Laser Trimming

Software Engineering of Resistive Elements Electrophysical Parameters Simulation in the Process of Laser Trimming

Circuit Simulation of Film Resistor Laser Trimming with a Measuring Voltage Source

Circuit Simulation of Film Resistor Laser Trimming with a Measuring Voltage Source

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