This investigation will establish the current
level of contaminants. The cleaning protocol is then developed and
the cleaned product is assessed. If additional optimization is
required, product will be cleaned and reassessed. Visual and ionic
analysis will be reported and recommendations made. Proof of
Cleaning effectiveness will be established and
product returned to you for your own functional testing.
The investigative technique used to assess residues is ion
chromatography. Our laboratory uses IPC TM 650 2.3.28 to separate,
identify, and quantify the residues from your contaminated hardware
and evaluate cleaning effectiveness. Process control of the
cleaning will be done using the C3 localized cleanliness testing
system.
Because the materials to be cleaned and the reasons for cleaning are
so variable, the product must be proven recoverable and the
procedure effective before committing further resources and
incurring greater expense; this is the goal of a Proof of Cleaning.
This project requires ten (10) samples from the population of
assemblies to be cleaned. Three (3) of these samples are tested as
received, without cleaning. The remaining seven (7) samples are
cleaned and three (3) of these are tested using ion chromatography.
The four (4) cleaned, untested samples are returned to the customer
for inspection and functional test.
Once the lab data and photo-documentation are available, the project
report is written and sent, via email, to the project contact
person. The report includes:
- IC test results, including species and quantity
- Photo-documentation of critical areas
- Recommendations
- Follow-up discussion
Cleaning and optimization will be
accomplished within five (5) business days. The cleaned boards will
be returned and an electronic report will be issued at the end of
those five (5) days.
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