In the field of mobile phone camera driving, how to control the lens to achieve fast and stable focusing is very important. The device that controls the focus of the lens in the mobile phone is the voice coil motor (VCM).
The fixation of magnet, spring, spacer and YOKE in VCM needs to be achieved by adhesives. The adhesives are required to have high bonding strength, good electronic insulation properties, solvent resistance, impact resistance, low stress, etc.