Electronics manufacturers urged to check fume extraction systems amid PCB growth

Share this on social media:

As global demand for Printed Circuit Boards (PCBs) accelerates, thanks to greater automation in industry and the miniaturisation of devices, electronics companies are being reminded about the workplace health risks associated with certain production processes.

The manufacture and assembly of PCBs can result in harmful emissions being released into the working environment, so Bofa International, a provider of portable fume extraction technology, is urging businesses to check that their extraction systems remain fit for purpose during this period of rapid growth.

‘According to a recent analysis, the global PCB market is predicted to reach around $80 billion by 2024 – this presents significant opportunities for companies but can also put pressure on production capacity,’ said David Thompson, business development manager at Bofa.

‘So when businesses are planning for growth, we would advise them to ensure that their existing fume extraction systems are maintained in optimal condition and that any new investment in manufacturing includes the latest technology to remove airborne contaminants. In this way, extraction technology will help workplace environments stay safe for employees while contributing to achieving productivity goals.’

While the health risks associated with manual and automated soldering are widely understood, there are other processes in PCB manufacture and assembly that can also be a cause of concern.

For example, the batch marking by laser of PCB boards is key in traceability for the electronics sector, but the emissions resulting from lasering can include solid particles, liquid droplets or vapours/gases, and can be particularly hazardous to respiratory function, depending on the substrate and laser parameters.

Related article: Mitigating the fire and explosion risks of laser metal processing

Another example is conformal coating, which protects PCBs from ingress of dust and moisture. This process is likely to involve organic chemicals (e.g. cyclohexane, xylene, etc.), which will give off hazardous fume and mist, but which can be properly controlled by Bofa filtration technology. Many businesses apply coatings by means of aerosol sprays which use a propane/butane propellant, which aren’t particularly harmful, but can mask the smell of more harmful chemicals.

Said David Thompson: ‘Bofa solutions combat all these risks through multi-stage filtration technology that includes specialist activated carbon filters designed to capture specific chemical emissions.

‘HEPA filters ensure a particulate filter efficiency of near 100 per cent (99.997 per cent) is achieved, contributing to compliant health protection while helping deliver the productivity gains that come from fume and dust free process lines.’

In the company’s experience, manufacturers are also embracing portable extraction technology alongside, or in place of, vent-to-air or centralised exhaust systems, to satisfy the requirements of agile working practices increasingly driving improved productivity.  

For further information, go to www.bofainternational.com/en/your-industry/electronics







Handheld laser welding systems promise flexibility in processing, but present numerous hazards that must be dealt with before they can be used safely. (Shutterstock/Dizfoto)

10 January 2022

Laser depaneling systems such as this achieve higher output by higher effective cutting speed and cutting quality. (Image: LPKF)

13 December 2021

The Fraunhofer IWS researchers used a multi-adsorption system to investigate the adsorption behavior of competing gases to find suitable filter substances. (Image: Fraunhofer IWS)

06 October 2021

We spoke with Arnold Mayer, of Optech Consulting, to discuss his preliminary findings for last year’s global market for industrial laser systems. (Image: Pixels Hunter/Shutterstock.com)

09 March 2022

Schematic illustration of the production of femtosecond laser-induced graphene. (Image: Korea Advanced Institute of Science and Technology)

02 February 2022

(a) Schematic of experimental system for plasmon-enhanced laser nanosoldering. (b) SEM image of silver nanowires with inset showing the size distribution of silver nanoparticles. (c) Plasmon-enhanced electric field as a function of interparticle gap for light polarization direction parallel and vertical to the interparticle axis. (d) Schematic illustration of plasmon-enhanced laser nanosoldering with increasing laser irradiation time. (e) SEM images of the morphological changes of silver nanowires in the new process. (Image: OEA)

25 January 2022

Laser depaneling systems such as this achieve higher output by higher effective cutting speed and cutting quality. (Image: LPKF)

13 December 2021