IPC CID+ Certification Exam
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Terms in this set (156)
,Affects Moisture absorption
dimensional
stability and
changes the
electrical
characteristic in
the material
which can cause
potential
difficulties in
assembly
What are the 3 Immersion, electroless, and
general electrolytic
methods of
plating material
on PCBs?
What are the Corrosion prevention, Improved
benefits of long-term solderability
metallic
coatings /
final(surface)
finish?
,Simplest of the Immersion Plating
wet processes;
involves a
simple galvanic
replacement
reaction; the
more noble
metal in the
solution picks
up electrons
from the less
noble metal
immersed in the
solution and
plates out
Why would you The thickness is limited to a very
use immersion thin coating as it is a simple
plating? replacement reaction
Why is Immersion has a flatter base for
Immersion attachment
finishes more
beneficial than
HASL?
, What are the Coplanarity / solder thickness
assembly varies, solder crowning, less
challenges/pro uniformity
blems with
HASL process?
Stencil fits flat Gasketing
on pad,
opening is
smaller than the
land pattern in
all dimensions
What is the Uneven surfaces cause leakage of
problem with paste underneath the stencil
gasketing in
HASL?
What other Gray tin, nickel/gold,
surface finishes nickel/palladium gold, immersion
are "white" tin, immersion silver, ENIG
better/flatter
than HASL?
(Newest 2025) | Complete
Questions and Correct Answers
(Verified Answers) | Just Released
Save
Terms in this set (156)
,Affects Moisture absorption
dimensional
stability and
changes the
electrical
characteristic in
the material
which can cause
potential
difficulties in
assembly
What are the 3 Immersion, electroless, and
general electrolytic
methods of
plating material
on PCBs?
What are the Corrosion prevention, Improved
benefits of long-term solderability
metallic
coatings /
final(surface)
finish?
,Simplest of the Immersion Plating
wet processes;
involves a
simple galvanic
replacement
reaction; the
more noble
metal in the
solution picks
up electrons
from the less
noble metal
immersed in the
solution and
plates out
Why would you The thickness is limited to a very
use immersion thin coating as it is a simple
plating? replacement reaction
Why is Immersion has a flatter base for
Immersion attachment
finishes more
beneficial than
HASL?
, What are the Coplanarity / solder thickness
assembly varies, solder crowning, less
challenges/pro uniformity
blems with
HASL process?
Stencil fits flat Gasketing
on pad,
opening is
smaller than the
land pattern in
all dimensions
What is the Uneven surfaces cause leakage of
problem with paste underneath the stencil
gasketing in
HASL?
What other Gray tin, nickel/gold,
surface finishes nickel/palladium gold, immersion
are "white" tin, immersion silver, ENIG
better/flatter
than HASL?
