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THERMAL IMAGING PRODUCTS
EL
 Introduction
Overview
Applications
How
It Works
Example
Defects
Short
Detection
Model
Board Comparison
EL
Software
System Components
Specifications
Micro
ThermoScreen
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 sales@optotherm.com
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 EL Infrared Circuit Board
Inspection System
Electronics Failure Analysis and
Functional Inspection
 Many printed
circuit board assembly defects cannot be identified easily using
conventional methods such as ICT, FT, AOI, and AXI. Such defects
include the following:
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Power-to-ground,
low resistance and cable shorts
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Stressed
components
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Faulty heat sink
attachment
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Programming errors
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Defective BGAs,
VCOs, and decoupling capacitors
Technicians and
engineers spend many hours debugging boards with such defects. Often,
these boards end up in the scrap pile. The EL infrared inspections
system provides an alternative
method of fault detection that can isolate these defects, thus filling the
gaps between conventional test equipment. EL is an effective and
economical tool that can reduce debugging costs and minimize scrap.
When is used as the first screen of defective boards, EL can quickly provide
useful troubleshooting information, dramatically reducing the time to
repair.
Functional Inspection
EL can also
be used to inspect boards for basic functionality. Although EL cannot
provide the same detailed level of functional verification as a functional
test, it can provide verification of basic board operation. Advantages of EL over
traditional functional testers include low cost and fast setup. No custom
hardware is required and tests can usually be setup in less than an hour.
EL is ideal when the high cost of a dedicated functional tester cannot be
justified.
Applications
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Quickly locate shorts, stressed components, and
other defects
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Verify board
functionality
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Analyze the thermal behavior of individual
components
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Evaluate thermal management components
Software Features
Camera Features
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0.05°C sensitivity
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320 x 240 uncooled infrared detector
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100 micron spatial resolution (minimum)
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30 frames/second thermal image capture and display
Enclosure
Features
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27"
x 27" x 45" aluminum framed enclosure
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Blocks stray infrared emittance by the ambient environment
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Blocks
air currents generated by heating and air conditioning ducts
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Motorized
infrared camera slide and controller precisely position the EL camera for Model
Board Comparison and short circuit tests
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Platform
with adjustable PCB mounts enable repeatable positioning of board
sizes up to 22" x 19"
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