Specifications
Operations | Reference Manual
FocalSpot, Inc. | www.FocalSpot.com
Page | 128
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AOI Mode uses a template-matching technique (object linking and embedding; known as OLE or MS™
ActiveX) to perform automated optical inspections. The precision of the inspection results relies heavily on the
quality of the templates selected. Therefore, the idea is to select a device inspection area with distinctive and
consistent markings.
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Template Parameters are configured in specific separate locations:
Device information is defined in the <RefID and Package> columns of the CXF file.
ROI is the operator drawn Region of Interest for a known part type given certain conditions. See illustrated
references in the <Template Training Guidelines Table>.
Magnification (Mag. / Cam#) is defined in the CXF file <Cam#> column. Magnification settings (1-4) are
used to control the device view both on screen and as seen by the system during inspections.
Best Practice: Higher magnification can amplify subtle differences in the device template and thereby
increase the number of devices presented for operator review. Therefore, fine tuning may be required to
achieve the best balance of speed and precision. As a rule; use Magnification (2) for all devices larger than
0805 and Magnification (3) for devices smaller.
Zoom 1-4 AOI Mode (Video 1) Relationships (*based on 15”monitor)
Zoom 1 = 1:1 Zoom 2 = 2:1 Zoom 3 = 3:1 Zoom 4 = 4:1
Pass Score is located in <Device Menu | Edit Device> Submenu. Pass Score thresholds (typically ~600-
700) and other Part Parameters are configured through the Device Menu. These setting configure the
optical inspection algorithms used to evaluate device condition (Pass or Fail). To access parameters
associated with a specific device template <right-click> within the ROI boundary box for a particular
device to open the Device Menu. The device has several functions see AOI Mode > Video1 Device
Submenu Functions.
Remarks are best practices recommendations intended to provide guidance configuring Part inspection
Parameters. The following table is in no way complete as there are too many component types and
variations from manufacturer-to-manufacturer. However, it should serve as a basic guideline for the vast
majority of components currently being inspected by AOI systems today.