An ESD protection design for camera modules

The main components of a cellphone camera are camera lens, color filter, voice-coil motor, motor drive and imaging sensor. Imaging sensor and motor drive both are ESD sensitive COMS semiconductor devices, the camera will lose its efficiency if under protection or operated mistakenly. Common malfunctions are unable to preview, motor fails to focus, I2C communication failure and abnormal heating. Therefore, it is important for researchers in this field to study the camera ESD failure causes, failure mode, failure analysis methods, ESD protection design methods and ESD test and imitation as well as test procedure, the research result is also conducive to further improve the quality of products and to solve various puzzling problems.