IPC-TM-650 EN 2022 试验方法--.pdf - 第102页

The Institute for Int erconnecting and Packaging E lectronic Circuits 2215 Sanders Road • Northbrook, IL 60062 Material in this T est M ethods Manual was vol untaril y establis hed by T echni cal Committees of the IP C. …

100%1 / 824
The Institute for Interconnecting and Packaging Electronic Circuits
2215 Sanders Road • Northbrook, IL 60062
Material in this Test Methods Manual was voluntarily established by Technical Committees of the IPC. This material is advisory only
and its use or adaptation is entirely voluntary. IPC disclaims all liability of any kind as to the use, application, or adaptation of this
material. Users are also wholly responsible for protecting themselves against all claims or liabilities for patent infringement.
Equipment referenced is for the convenience of the user and does not imply endorsement by the IPC.
Page 1 of 1
IPC-TM-650
TEST
METHODS
MANUAL
1
.0
Scope
This
method
is
designed
to
determine
dimen¬
sional
conformance
to
specification
of
production-cut
panels
of
laminate
or
prepreg
for
length,
width,
and
perpendicularity.
2
.0
Applicable
Documents
IPC-PC-90
3
.0
Test
Specimens
3.1
Size
Production
cut
panels
in
the
dimensions
intended
for
shipment
shall
be
used.
3.2
Sampling
Sampling
rates
shall
be
in
accordance
with
the
applicable
specification.
(Also
see
6.1.)
4
.0
Apparatus
or
Material
Unless
otherwise
specified,
precision
of
measurement
apparatus
shall
be
in
accordance
with
the
applicable
specification.
4.1
Vernier
calipers
capable
of
measuring
up
to
914
±
6.4
mm
[36.0
±
0.25
in]
or
equivalent.
4.2
Tape
measure
capable
of
measuring
up
to
1829
mm
[72.0
in]
4.3
Carpenters
square,
or
equivalent
4.4
Pin
gauges,
dial
indicators
or
equivalent
5
.0
Procedure
5.1
Length
Measure
the
length
of
the
edges
of
the
panel
that
are
parallel
to
the
grain
direction
using
a
vernier
caliper.
5.2
Width
Measure
the
length
of
the
edges
of
the
panel
that
are
perpendicular
to
the
grain
direction
using
a
vernier
caliper.
5.3
Perpendicularity
5.3.1
Method
A:
by
diagonals
5.3.1.
1
Measure
the
diagonals
of
the
panel
using
vernier
caliper
or
tape
measure.
Number
2.2.19.1
Subject
Length,
Width
and
Perpendicularity
of
Laminate
and
Prepreg
Panels
Date
Revision
12/94
Originating
Task
Group
MIL-P-13949
Test
Methods
Task
Group
(7-1
1b)
5.3.1.
2
Calculate
perpendicularity
as
follows:
D
=
D1-D2
(Maximum
allowable
difference
in
diagonals)
Where:
di
二
D2
二
^/(L-T)2
+
W2
L
二
Nominal
length
of
panel
[ins]
W
二
Nominal
width
of
panel
[ins]
Tii
=
Tolerance
in
inches
per
inch
for
perpendicularity
shown
in
the
procurement
document.
T
二
Tii
x
W
(Tolerance
in
inches)
5.3.1.
3
Calculate
the
actual
difference
in
the
diagonals
from
the
measurements
taken.
5.3.1.
4
Compare
the
actual
difference
to
the
allowable
maximum.
5.3.2
Method
B:
By
carpenters
square
(“Right
Angle”
Square)
5.3.2.1
Place
the
panel
in
the
carpenters
square,
contacting
the
square
by
at
least
two
corners.
5.3.2.2
Using
suitable
means
(see
4.4)
measure
the
dis¬
tance
of
the
panel's
comer
that
does
not
contact
the
square.
5.3.2.3
Calculate
the
perpendicularity
by
dividing
the
dis¬
tance
by
the
length
of
the
longest
dimension
of
the
panel.
5.4
Evaluation
Compare
the
measurements
with
dimen¬
sional
requirements
of
the
applicable
specification.
Record
the
number
of
panels
that
do
not
comply.
Record
the
number
of
noncomplying
panels
for
each
dimension
—
length,
width,
and
perpendicularity.
5.5
Report
the
number
of
panels,
specifying
which
dimen¬
sion,
that
do
not
comply
with
the
applicable
specification.
6
.0
Notes
6.1
Sampling
may
also
be
determined
by
IPC-PC-90
on
materials
produced
by
continuous
processing.
The Institute for Interconnecting and Packaging Electronic Circuits
2215 Sanders Road • Northbrook, IL 60062
Material in this Test Methods Manual was voluntarily established by Technical Committees of the IPC. This material is advisory only
and its use or adaptation is entirely voluntary. IPC disclaims all liability of any kind as to the use, application, or adaptation of this
material. Users are also wholly responsible for protecting themselves against all claims or liabilities for patent infringement.
Equipment referenced is for the convenience of the user and does not imply endorsement by the IPC.
Page 1 of 2
IPC-TM-650
TEST
METHODS
MANUAL
1
.0
Scope
This
procedure
determines
the
percent
metal
content
for
solder
paste.
2
.0
Applicable
Documents
None
3
.0
Test
Specimen
50
grams
of
solder
paste
4
.0
Equipment/Apparatus
Balance
Crucible
or
Beaker
Heat
Source
Flux
Solvent
5
.0
Procedure
5.1
Preparation
5.1.1
Weigh
1
0
to
50
grams
(to
the
nearest
0.01
gram)
of
solder
paste
into
a
tared
vessel
suitable
for
melting
the
solder
paste.
5.2
Test
5.2.1
Melt
the
solder
at
approximately
25℃
above
liquidus
of
the
alloy,
remove
from
heat
and
allow
solder
to
solidify.
5.2.2
Extract
melt
from
residual
flux
with
a
suitable
solvent,
dry
and
weigh
metal
to
within
0.01
grams
to
determine
%
metal
content.
5.3
Evaluation
Weight
of
extracted
metal
Weight
of
original
sample
x
1
00
=
%
Metal
Number
2.2.20
Subject
Solder
Paste
Metal
Content
by
Weight
Date
1/95
Revision
Originating
Task
Group
Solder
Paste
Task
Group
(5-24b)
Enter
the
results
in
Table
1
'Test
Report
on
Solder
Paste.'
Table 1 Test Report on Solder Paste
Enter appropriate information in top portion of report and complete report by entering the test results or checkmarks in the appropriate spaces.
Inspection Purpose: QPL I.D. Number:
__ Qualification Manufacturer’s Identification:
__ Quality Conformance A Manufacturer’s Batch Number:
__ Quality Conformance B Date of Manufacture:
__ Shelf-Life Extension Original Use-By Date:
__ Performance Revised Use-By Date:
Date Inspection Completed: Overall Results: __ Pass __ Fail
Inspection Performed by:
Witnessed by:
Inspections
User’s Actual
Requirement Test Result P/F (*) Tested by & Date
Material
Visual
Metal Content
Viscosity
Solder Ball
Slump
Alloy
Flux
Powder Size
% In Top Screen
% In Next Screen
% In Bottom Screen
% In Receiver Bottom
Max. Powder Size
Powder Shape
Tack
Wetting
* P/F = PASS/FAIL; enter P if test results are within tolerance of actual requirement; otherwise, enter F
IPC-TM-650
Number
Subject Date
Revision
Page 2 of 2
2.2.20
Solder
Paste
Metal
Content
by
Weight
1/95