High precision laser resistor trimming system

Machine Features

1. Self-developed PMU measurement system with high precision, speed and consistency, full range design & resistance regulation

2. Self-developed resistance regulation software system, supporting varies kinds of resistance adjustment knife types and satisfying customized requirements

3. Powerful functions, enabling adjustment of resistance, AC/DC voltage, current parameters

4. High stability and reliability, with no parameter drift after adjustment and repair.

5. Low operation and maintenance cost, low energy consumption, high efficiency

6. High safety with dust-proof, anti-static, leakage protection and personal safety protection functions equipped

7. 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

Applications

The laser trimming system features multiple adjustment functions. It can trim thin‑film resistor networks, capacitor networks, and ceramic‑based thin‑film integrated components, as well as realize functional adjustment of hybrid integrated circuits. Examples include: ● Chip resistor trimming (01005, 0201, 0402, 0603, 0805, 1206, 1210, 2010, 2512); ● Thickfilm circuit trimming (for midtohighend applications including automotive electronics, sensors, aerospace and military integrated circuits, communication electronics, instruments, heating tubes, industrial electronics, highfrequency and highpower microwave circuits); ● Circuit function trimming (adjusting circuit output voltage, current and other functional signals); ● Trimming of thinfilm circuits, thinfilm resistors, and more.

Brief Description

The laser trimming system focuses an ultra‑fine laser beam on the thick‑film resistor. Following pre‑programmed computer instructions, the beam trims the resistor to alter its cross‑sectional area, thereby adjusting the resistance value. Meanwhile, a high‑speed measurement system monitors the resistance in real time to ensure it approaches the target value. Once the resistance reaches the target, the laser beam is shut off to achieve precise resistor trimming.

Technical Data Sheet

Machine	High precision laser resistor trimming system
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 R（MΩ）】
	Voltage measurement	Range: -10V~+50V
	Voltage measurement	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