Christopher Associates Inc. has announced its introduction of the Machvision Hole Doctor verification system for printed circuit fabrication applications. The company states that the product is an in line conveyor system for the inspection and verification of hole count, hole diameter, location accuracy and hole quality on rigid, microvia/HDI, and flexible PCBs, and can be used after drilling, desmearing and plating or for final inspection or QC.

The company states the system can be programmed using a “golden board” or drill files to inspect hole diameters from .006” - .400” and up to 16:1 aspect ratios on panels from .010” to .400” thick. Claimed defect inspections include plugged holes, improper hole diameters, poor drilling accuracy, and other critical parameters using an XP-based SPC software package.

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