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What Is Rules Based Thermal Profiling?
Surface mount rework systems today
accurately mimic original reflow oven profiles at a localized
rework site. Features such as automated profile generation
allow the user to quickly define workable profiles for
a variety of applications. However, lead-free solder
and sensitive components demand more carefully crafted
profiles than can be achieved using traditional methods.
Rules Based Thermal Profiling allows automated profile
generation with a combination of parameters that are
set to meet every situation. Multiple criteria may be
specified and prioritized to yield the most reliable
process for reworking sensitive components and assemblies.
This offers the process engineer the ability to more
easily tailor rework processes to satisfy lead-free assembly’s
increasingly stringent requirements and still maintain
the yields and reliability that are paramount in the
current market environment.
What Is Advanced Defect Enhancement?
Traditionally, inspection of X-ray
images involved manually adjusting contrast and brightness
for different regions of the image. This is done to improve
the visibility of low-contrast defects across different
thickness and materials, such as voids in solder joints
or encapsulants. These manual adjustments result in a
long inspection duration and inconsistent decision making
across operators, resulting in major cost implications
in the production inspection context.
The Advanced Defect Enhancement (ADE) filter is a sophisticated
image enhancement tool for automatically adjusting the
local contrast and brightness for each region of the
X-ray image. Because it completes the enhancement in
a single pass, the enhanced image shows practically all
defect structures, thus eliminating the need for any
manual contrast and brightness adjustment. This directly
reduces cost as the inspection duration for each part
is significantly decreased. In addition to minimizing
reliance on operator competence, ADE results in higher
inspection quality because defect visibility is substantially
improved.
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