Wednesday, October 31, 2007

Sony Introduces Automatic Optical Inspection Machine for PWBs

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Sony Manufacturing Systems America Inc (SMSA) has announced an automatic optical inspection (AOI) machine that delivers high-speed operation with accuracy and flexibility in a compact design.

Suitable for the detection of inaccurate component mounting, reversed components, missing components, incorrect polarity, missing solder, bridging and solder quantity, the SI-V200 model has a 2-Mpixel color CCD camera and a high-intensity, three-stage white ring lighting system incorporated in a rigid, cast-iron frame. This significantly reduces operational noise and ensures a stable inspection environment.

When the 2-Mpixel CCD camera is used in standard resolution (15.5µm), the field of view (FOV) capacity is increased by 54% as compared to the previous models. According to Jim Price, director of sales for the SMT division of SMSA, the increased FOV correlates directly to the improved inspection speed realized by the new SI-V200 unit. In addition, the upgraded camera provides high-resolution mode (11µm), allowing for the inspection of 01005-sized components.

Another feature of the unit is a high-intensity, three-stage white ring lighting system, which Price said has been proven to supply consistently stable illumination, leading to higher clarity in both black-and-white and color inspection. The system also works in conjunction with a tele-centric lens to reduce distortion, increasing the inspection accuracy of adjacent components and ensuring that images are captured correctly in all areas.

Also new is the use of a linear motor to drive the X axis. Industry tested linear motor technology provides higher reliability and lower maintenance as it relies on fewer mechanical parts. To complement the upgrade to the linear motor drive, Sony has chosen its own Magnascale technology for position control and feedback.

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