High precision laser resistor trimming system
High precision laser resistor trimming system

High precision laser resistor trimming system

Brief Description
Laser resistance modulation locates a very thin laser beam on the thick film resistor, the beam cuts the resistor according to the computer predetermined program, and changes the resistance value by changing the cross-sectional area of the resistor.
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System introduction
Laser resistance modulation locates a very thin laser beam on the thick film resistor, the beam cuts the resistor according to the computer predetermined program, and changes the resistance value by changing the cross-sectional area of the resistor.
At the same time of laser cutting resistance, the resistance value is measured in real time through the high-speed measurement system to keep it close to the target resistance value.
When the resistance reaches the target value, the laser beam is turned off, so as to realize the precise adjustment of the resistance.
The laser resistance modulation system has a variety of adjustment functions, which can adjust the thickness of thin-film resistor network, capacitor network, ceramic based thin-film integrated components and realize the function adjustment of hybrid integrated circuits.


System Characters
The self-developed PMU measurement system has high precision, fast speed, good consistency, full range design and full range resistance regulation.
The self-developed resistance regulation software system supports varies of different kinds of resistance adjustment knife types and meets the customized requirement at the same time.
The equipment has powerful functions and supports the adjustment of parameters of resistance, AC and DC voltage and current
The equipment is stable and reliable, and the reliability of the repaired and adjusted values of product parameter is high and will not drift
Low operation and maintenance cost, high efficiency and low energy consumption. It is equipped with dust-proof, anti-static, leakage protection and personal safety protection functions, it can be used safely
The laser cutter knife includes type I, type II, type L, type U, type J, type M, scanning type, type I muster, type I indent, type L indent and type u indent
Application
Chip resistor adjustment (01005、0201、0402、0603、0805、1206、1210、2010、2512)
Thick film circuit (medium and high-end applications such as automotive electronics, sensors, aerospace and military integrated circuits, communication electronics, instruments and meters, heating tubes, industrial electronics, high-frequency and high-power microwave circuits)
Circuit function adjustment (adjust circuit output voltage, current and other circuit function signals)
Thin film circuit, thin film resistor


System parameter
 
Laser Laser type Fiber laser
Central laser wavelength 1064nm
Output power 20W
Repeating frequency 1-100kHz
Pulse width 3-500ns
Typical spot size 15-40μm
Beam positioning Scanning range 70mm×70mm
Scanning resolution 1μm
Repeated positioning precision ±1μm
Vision Coaxial monitoring system 500W pixel monitoring camera
Worktable Motion platform Linear motor with grating ruler
Motion range 200mm×300mm
Repeated positioning precision ±2μm
Max motion speed 1000mm/s
Measurement system Compatibility of test system Compatible with low resistance, medium resistance and high resistance measurement
Test way 2-wire measurement or 4-wire measurement
 
Resistance measurement
Range 50mΩ~100MΩ
 
low resistance:±0.05%+0.5%/R(Ω
medium resistance:±0.05%
high resistance:±0.05% +0.05% x RMΩ
Voltage measurement Range: -10V~+50V
Measurement accuracy in full range: 0.01%
Measurement channel 48~288 (48 channels on each panel, can be expanded)
Measurement time 2us/time, adjustable based on customer’s requirement
Error compensation Automatic calibration by one key
 
 
Sample
Chip resistor adjustment
Chip resistor adjustment
Thick film circuit
Thick film circuit
Circuit function adjustment
Circuit function adjustment
Thin film circuit
Thin film circuit
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