High-Precision Laser Marking for Electronics & Semiconductors
Fine UV Marking. PCB-Friendly Process Selection. Verifiable Codes.
Electronics traceability needs small, readable marks without unacceptable heat effects on the finished component. HT Marker UV and CO₂ laser marking systems can mark selected PCB solder masks, IC packages and plastic housings. Start with the exact resin or board stack-up, code size and line speed; then approve contrast, electrical integrity and scan performance after the real assembly process.
Why Choose HT Marker?
From white housings to densely populated boards, HT Marker helps select a wavelength, lens, fixture and data flow around the component's real limits. UV is a strong starting point for fine marks on heat-sensitive surfaces; CO₂ can be cost-effective on suitable organic coatings. Confirm the finished code after reflow, cleaning and coating at the intended production speed.
Purpose-Built Lasers for Electronic Components
Protect your sensitive electronic components from thermal stress. Choose the right wavelength to achieve high-contrast, permanent marks on plastics, resins, and ceramics at production-line speeds.
355nm UV Laser Marking System
The Fine-Marking Option — 355 nm UV for Plastics and PCBs
UV can create crisp text and compact 2D codes on selected white ABS/PC casings and solder masks with lower heat input than a poorly matched infrared process. It is especially useful when yellowing, char or copper exposure must be controlled. Mark the actual resin or board stack-up and inspect the code edge, solder mask and underlying circuit before release.
High-Speed CO2 Laser System
(The Non-Metal Specialist (FR4 & Packaging)
A highly cost-effective solution for non-metallic components. Excellent for high-speed marking on FR4 circuit boards, epoxy resins, electronic component housings, and consumer electronics cardboard packaging.
Inline "On-the-Fly" Laser System
(The Automation Integrator)
Designed to integrate seamlessly into your high-speed SMT (Surface-Mount Technology) conveyor lines. Available in UV or CO2 configurations, it marks moving electronic parts on the fly with integrated vision systems for automatic positioning.
Mastering Miniaturization & Material Safety
Choose the wavelength around the component—not a “zero-damage” slogan. HT Marker can pair a 355 nm UV marking machine with suitable plastics, solder masks and IC encapsulants; a CO₂ configuration may be economical for selected organic coatings and non-metal packaging.
- White plastic housings: compare UV against the current process when yellowing or burnt edges are the problem. Approve contrast, colour and surface change on the real ABS/PC formulation.
- Compact code traceability: size a Data Matrix from the data payload, module count, quiet zone and reader optics. Verify the finished code after reflow, wash or coating rather than promising a universal minimum size or 100% scan rate.
- PCB and IC protection: use a qualified keep-out area and controlled recipe. Inspect solder-mask removal, exposed copper, component temperature and any required electrical test on the marked assembly.
| Material / Component | Recommended Technology | Marking Mechanism | Key Benefit for Electronics |
| White Plastics (Chargers, Earphones) | UV Laser (355nm) | Photochemical (Cold Marking) | High-contrast text on suitable resins; approve colour and edge quality on the actual grade. |
| PCB (Printed Circuit Boards) | UV Laser or CO2 Laser | Surface Ablation / Color Change | Compact codes; qualify solder-mask removal, copper clearance and post-process readability. |
| IC Chips / Semiconductors | UV Laser (355nm) | Photochemical (Cold Marking) | Fine package marks; inspect surface and pass electrical/reliability checks. |
| Non-Metal Housings & Packaging | CO2 Laser (10600nm) | Thermal Ablation | Cost-effective on suitable organic housings and packaging; verify material and fumes. |
SEE HOW TO REDUCE YELLOWING ON WHITE PLASTICS
Burnt edges and low scan rates are expensive in high-volume electronics work. Compare the 355 nm UV result on the actual white housing and PCB solder mask at the required production speed.
- UV plastic marking: inspect text contrast and any yellowing, texture or deformation on the same ABS/PC grade used in production.
- PCB serialization: confirm the code data, trigger timing, mark location and reader result after the downstream reflow, wash or conformal-coat steps.
Frequently Asked Questions
Why does laser marking make my white plastic parts turn yellow or burn?
Yellowing usually means the resin and laser recipe are producing too much discoloration or heat at the mark edge. First identify the exact ABS/PC grade, colour and additives, then check focus, pulse energy, speed and overlap. Compare a 355 nm UV trial with the current fiber recipe; UV is often the stronger starting point for a fine mark on white or heat-sensitive plastic. Approve colour, contrast, surface texture and cycle time on the actual part—UV does not guarantee zero yellowing on every formulation.
Can I use a CO2 laser to mark PCBs?
Yes, a CO₂ laser can mark a suitable PCB solder mask, especially when the job is a comparatively large, simple code on an accessible FR-4 board. It changes or removes the organic coating to make contrast. Use a controlled recipe and keep-out zone so copper, vias and nearby components are not affected. Choose 355 nm UV for smaller features, tighter thermal limits or densely populated boards. Inspect the marked stack-up and verify the code after the real reflow, wash and coating sequence.
Will laser marking damage the internal components of an IC chip?
A UV laser can reduce heat input on a suitable IC package, but no laser wavelength alone proves the chip interior is unaffected. Check the package resin and thickness, die/wire-bond location, mark depth and energy density. Mark a representative package, inspect the surface and run the manufacturer’s electrical and reliability tests before production. For thin encapsulation, use the package supplier’s keep-out and maximum-marking limits.
Can your laser systems integrate with our factory's MES or ERP software?
Yes, with a configured controller and a defined data interface. HT Marker can assess TCP/IP or I/O exchange, file- or spreadsheet-driven serials and batch content for the selected system. For a reliable MES/ERP connection, provide the trigger, data fields, protocol, duplicate rule, ready/busy acknowledgement, reader result, reject handling and log format. A standalone code generator is not automatically a validated two-way factory integration.
What is the smallest QR code or DataMatrix your lasers can mark?
Do not select the machine from a blanket “2 × 2 mm” or “3 × 3 mm” scan guarantee. Size the symbol from its encoded data and required module count. As a planning example, a 20 × 20 Data Matrix plus a one-module quiet zone on each side occupies 22 modules across; within 3 mm total width, the module pitch is about 0.136 mm. Then check the lens/spot, mark spread, part contrast, reader resolution, lighting and any required grade on a real component. HT Marker can run a code-size trial with your actual payload and scanner.