VCMs have been an important part of smartphone camera modules for years. VCMs support features such as image stabilisation and auto-focus.
According to Delo, VCMs are small motors. Their components are only a few millimetres in size and are usually made of temperature-sensitive materials. Their production aligns with strict temperature and quality requirements, which spurs demand for the right adhesive. The Delo Dualbond LT2221 is characterised by its low curing temperature, a solution for many applications in consumer electronics.
This low-viscosity product enables fine bondlines, allowing users to join tiny components. With a compression shear strength of up to 8 MPa on LCP, the adhesive is said to be as strong as it is versatile.
Delo Dualbond LT2221 can be fixed with light. Combined with Delolux high-power lamps, users can fix components with light in 0.5 seconds after joining. Curing of non-translucent areas is typically carried out in 90 minutes at +60 °C via heat curing.
Key advantages:
• Suitable for bonding very small components
• Fast production processes thanks to dual curing
• Compression shear strengths of up to 8 MPa
• Light curing in just 0.5 seconds
• Complete curing at only +60 °C
“We have a long history of working hands-on with camera module manufacturers to bring them tailor-made solutions, particularly with regard to active alignment,” explained Maximilian Baum, head of product management for consumer electronics assembly and equipment at Delo. “With this universal, yet high-end adhesive, our customers will be able to use it for almost all of the dozens of bonding tasks in a VCM—something that is rare in today’s highly specialised high-tech manufacturing.”
