ALPHA SACX Plus 0807

the product:
Delivering the confidence
you need to move to a
lower silver alloy without
sacrificing soldering
performance or reliability
®
ALPHA
™
SACX Plus
0807
Product Guide
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
1
ALPHA® SACX™ Plus 0807
Contents
PAGE
Introduction
Features and Benefits
Overview of SACX™ Alloys
Basic Alloy Properties
Processing Parameters
Manufacturability
Copper Erosion Data
Dross Rates
Soldering Performance
Wetting Balance
Spread
Skips
Bridging
Solderballing
Hole-Fill
3-5
3
4-5
6
7-9
7
8
9
10-17
10-11
12
13
14
15
16-17
PAGE
Reliability
Basic Properties
Joint Strength
Thermal Cycling
Joint Appearance
Availability
When to Consider SACX™ Plus 0307
Summary of Properties
Technical Data Sheet & MSDS
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
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ALPHA® SACX™ Plus 0807
Introduction
ALPHA® SACX™ Plus 0807 is a newly designed and tested Pb-free electronics soldering alloy
that uses the latest innovations to deliver best in class soldering performance and reliability. It’s
also easy to use and can be dropped in to most current SAC 305 wave soldering processes.
ALPHA® SACX™ Plus 0807 contains just the right amount of additives to be the perfect choice
for the most challenging assemblies while also helping Assemblers lower their material costs.
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
3
ALPHA® SACX™ Plus 0807
Overview of the SACX™ Plus Family of Pb-free Alloys
• Alloys are engineered for optimal performance in
specific processes or on certain types of assemblies
• Alloys are fully cross compatible
 For example, a component can be readily soldered to a SACX™ Plus
0307 HASL finished pad using the SACX™ Plus 0807 wave solder alloy
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
4
ALPHA® SACX™ Plus 0807
High Performance Alloys for Every Assembly
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
5
ALPHA® SACX™ Plus 0807
Alloy Properties - Basic
Material Property
SACX®0807
SAC 305
Solidus
216ºC
216ºC
Liquidus (peak)
225ºC
220ºC
Density
7.4 g / cm³
7.37 g / cm³
Calculated value
Resistivity
0.1399 µΩm
0.1385 µΩm
Measured resistance of solid wire at
22°C
21.9 x 10-6 / C
30 - 100°C at 1°C / minute
N/A
100 - 180°C at 1°C / minute
19.5 x 10-6 / C
Coefficient of
Thermal Expansion 20.2 x 10-6 / C
Specific Heat
0.23 J/g/°C
N/A
Test Method / Condition
Differential Scanning Colorimeter
(DSC)
Differential Scanning Colorimeter
(DSC)
@100°C,
Differential Scanning
Colorimeter (DSC)
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
6
ALPHA® SACX™ Plus 0807
Processing Parameters- “Manufacturability”
Material Property
SACX®0807
Units
Operating Temperature
255 - 265
ºC
Conveyor speed
0.8 - 1.5
(2.6 – 5.3)
m/min
(ft/min)
Contact time (single and dual wave)
2-5
Seconds
Assembly Types
From simple single side paper phenolic boards to thick (2.4mm+),
complex 2-sided FR4 with OSP pad finishes that have hardened from
prior reflow excursions
• With SACX™ Plus 0807 , there is no need to change settings as it can
be used in virtually any higher silver Pb-free alloy wave soldering
process
• Unlike Ag free alloys, SACX™ Plus 0807 requires no costly increase in
pot temperature in order to provide acceptable wetting performance
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
7
ALPHA® SACX™ Plus 0807
Processing Parameters –
Copper Erosion
Because of proprietary additives, SACX™ Plus 0807 exhibits much lower rates of copper
erosion than SAC305
Test 1
Actual Cu trace erosion
Test 2
Wire Break Times at 260C
35
30
SACX®0807
Cu plated
through
hole
seconds
25
20
15
10
No erosion
Cu erosion at
barrel “knee”
after 50 secs.
exposure over
wave
5
0
SAC305
SACX®0807
SAC305
Time taken for a .05mm copper wire
to fail under a 1.5g load when
immersed in 260ºC static solder
bath
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
8
ALPHA® SACX™ Plus 0807
Processing Parameters – Dross Rate
1500
Weight (g)
Proprietary
additives
substantially
decrease the
amount of dross
produced by
SACX™ Plus 0807
versus traditional
SAC305
1000
500
0
0
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34 36
Time (Hours)
SACX0807
SAC305
50% less dross can save >$5K / per line / per year!
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
9
ALPHA® SACX™ Plus 0807
Soldering Performance – Wetting Speed
Wetting Balance Test - Pot temp. 260C
1.00
0.90
Wetting Time (seconds)
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
SAC305
SACX0807
•SACX™ Plus 0807
is engineered to
have lower surface
tension
• Lower surface
tension results in
faster wetting
• Faster wetting
means better hole
fill
Alloy
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
10
ALPHA® SACX™ Plus 0807
Soldering Performance – Wetting Force
3
Wetting Force / mN
2
1
0
0
1
2
3
4
5
-1
-2
-3
-4
Tim e / s ec
SAC305
SACX®0807
Wetting Balance tests show
the wetting force (Fmax) of
SACX™ Plus 0807 is nearly
identical to SAC305 under the
same test conditions
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
11
ALPHA® SACX™ Plus 0807
Soldering Performance – Spread
SAC305
Spread value
Spread Coefficient (JIS) 260C
80.00
79.00
78.00
77.00
76.00
75.00
74.00
73.00
72.00
71.00
70.00
SACX0807
SAC 305
SACX™Plus 0807
Similar wetting angles as SAC305
Similar spread characteristics
as SAC305
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
12
ALPHA® SACX™ Plus 0807
Soldering Performance – Skips
Solder Skip resistance of SACX™
Plus 0807 equivalent to SAC305 in
our testing. No skips were seen
with either alloy during testing.
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
Transistors - Skips per Board
SACX0807
SAC305
1.00
0.90
0.80
0.70
1
# of Skips
# of Skips
Chip Capacitors - various sizes
SACX0807
0.20
Process set-up
Flux
Pad finish
Pot temp.
Wave
.Configuration
0.10
Conveyor Speed
0.60
0.50
0.40
0.30
SAC305
ALPHA EF-8000
Entek HT
260ºC
Dual
Chip / Lambda
1.3 m / min
0.00
1
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
13
ALPHA® SACX™ Plus 0807
Soldering Performance – Bridging
Bridges per 0.8mm QFP
100.00
70.00
80.00
60.00
# of Bridges
# of Bridges
Bridges per Connector
60.00
40.00
20.00
0.00
50.00
40.00
30.00
20.00
10.00
1
0.00
A ll o y
SACX®0807
1
SAC305
Alloy
SACX®0807
Designed to deliver excellent solder
drainage
Good drainage = low bridging
SAC305
Process set-up
ALPHA EF-8000
Flux
Pad finish
Entek HT
Pot temp.
260ºC
Wave
Dual
.Configuration
Chip / Lambda
Conveyor Speed
1.3 m / min
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
14
ALPHA® SACX™ Plus 0807
Soldering Performance – Solder Balls
Solder Ball Performance
Avg. # per board
80.00
60.00
40.00
20.00
0.00
SAC 405
SACX0807
Average # of micro solder balls recorded from sampling of 24
processed assemblies
Equivalent solder balling resistance
compared to higher silver SAC
alloys
Process set-up
ALPHA EF-8000
Flux
Pad finish
Entek HT
Pot temp.
260ºC
Wave
Dual
.Configuration
Chip / Lambda
Conveyor Speed
1.3 m / min
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
15
ALPHA® SACX™ Plus 0807
Soldering Performance – Hole-Fill
SAC305
A V e r a g e H o le F ill ( % )
100.00
80.00
60.00
40.00
SACX™Plus 0807
20.00
0.00
Ave 10mil Hole-Fill
Ave 20mil Hole-Fill
Ave 40mil Hole fill
SACX®0807 SAC305
High wetting force leads to
improved hole-fill at standard
operating temperatures
Process set-up
ALPHA EF-8000
Flux
Pad finish
Entek HT
Pot temp.
260ºC
Wave
Dual
.Configuration
Chip / Lambda
Conveyor Speed
1.3 m / min
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
16
ALPHA® SACX™ Plus 0807
Soldering Performance – Hole-Fill
SACX™Plus 0807
SAC405
In field trials, SACX™Plus 0807 achieved comparable hole-fill
performance to higher silver SAC alloys
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
17
ALPHA® SACX™ Plus 0807
Reliability – Basic Properties
Material Property
Hardness
Tensile Strength
Elongation
Solder Creep
(time to failure)
SACX™ Plus
0807
13.2 Hv
SAC 305
Test Method
14.7 Hv
Vickers Hardness – cast samples “aged”
(after aging)
(after aging)
for 24hrs @ 125ºC
30.7 MPa
21.5%
32 MPa
33.5%
Strain rate 10-3 per second
>1000 hrs
>1000 hrs
1.5 kg weight at 100ºC
Strain rate 10-3 per second
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
18
ALPHA® SACX™ Plus 0807
Reliability
– Joint Strength (shear and pull tests)
Shear and Pull Testing Results
10
550
450
Shear Force
Additives
contribute to
joint strength
that is similar to
SAC305
400
5
350
Pulling Force
500
300
250
0
200
SACX0807
Shear
Pull
SAC305
Mean data collected from over 20 separate tests
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
19
ALPHA® SACX™ Plus 0807
Thermal Cycling – Test Vehicles used
•
•
•
•
•
•
Bottom Side
Large Equipment Board
1.6mm FR4 multilayer PCB
Entek OSP HT
1 prior glue cure
4% solids ROL0 flux
Current alloy – SAC 405
Joint inspections
and cross sectional
analysis performed
on large power
management
devices in high
heat capacity areas
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
20
ALPHA® SACX™ Plus 0807
Reliability
– Thermal Cycling test conditions and results
Test Conditions – Shock profile - Twin chamber environmental cabinet used to cycle
between -20°C to +100°C with 1 hour dwell (total cycle time = 2.5 hrs.)
Cross sections of
radial film capacitor
SAC405
SACX®0807
External view of the
bottom side joint of a large
pot capacitor
After 1000+ cycles:
• Equivalent results for
SACX™ Plus 0807 and
SAC405 alloys
SAC405
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
21
ALPHA® SACX™ Plus 0807
Reliability – Thermal Cycling
Class A – No deformation
Class B – Slight deformation
Joint Degradation from Thermal Shock Testing
Class C – Moderate deformation
Results from inspection of large heat capacity components only
Class D – Surface striations
Class E
Class D
Class D
Class E
Amt. of Defects
Class E – Surface cracks
Cu
wi rren
th
t
ac cus
SAC 405
ce to
pt me SAC405
ab
le r p r
re oc
lia es
bil s
i ty
SACX®0807
Class C
outperforms
current standard!
Class B
Class A
High performing,
low cost alternative
Alloy
SACX0807
SACX™
Plus
0807
Test Profile
-20°C to +100°C
1 hour dwell (total cycle time = 2.5 hrs.)
1000+ cycles
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
22
ALPHA® SACX™ Plus 0807
Joint Appearance
SACX™ Plus 0807
SACX™ Plus 0807
SAC405
Unique additives
help create
uniform grain
structures
resulting in shiny
joints
Pb-free finish is
different from
SnPb finish –
helps avoid
contamination
during rework
SAC405
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
23
ALPHA® SACX™ Plus 0807
Availability
SACX™ Plus 0807 is made in each of our 3 global regions
Item
Number
152609
152610
152611
152612
BAR SACX0807 Vaculoy
BAR SACX0807 Vaculoy
BAR SACX0807 Vaculoy
BAR SACX0807 Vaculoy
152614
152615
152616
BAR SACX0800 Vaculoy Kilo
BAR SACX0800 Vaculoy Tri-Kilo
BAR SACX0800 Vaculoy 3.5KG
152649
152650
152651
152652
BAR SACX0807 Vaculoy
BAR SACX0807 Vaculoy
BAR SACX0807 Vaculoy
BAR SACX0807 Vaculoy
152653
152654
152655
BAR SACX0800 Vaculoy Ultra Low Lead Kilo
BAR SACX0800 Vaculoy Ultra Low Lead Tri-Kilo
BAR SACX0800 Vaculoy Ultra Low Lead 3.5KG
Description
Kilo
Tri-Kilo
3.5KG
Chunk
Product Type BAR
Product Group BRC
Product Name VAC
Ultra Low Lead Kilo
Ultra Low Lead Tri-Kilo
Ultra Low Lead 3.5KG
Ultra Low Lead Chunk
Consult your local / regional manufacturing plant for special shape or size requests
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
24
ALPHA® SACX™ Plus 0807
When to consider SACX™ Plus 0807
• Current SAC305/387/405 or SnPb users that are evaluating
low-Ag alternatives and have “difficult to solder” assemblies
– Assembler should always consider their most difficult assembly when
selecting a single alloy
• Users of lower Ag or Ag free alloys that:
– Are not getting the soldering performance they need
– Are seeing an increase in mechanical reliability related field failures
Use the “SACX™Plus Family” map for guidance on which alloy to offer
(based on the assembly type)
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
25
ALPHA® SACX™ Plus 0807
Summary of Properties
• Low silver content lowers alloy cost
• Wide processing temperature range saves energy and
allows drop in replacement of higher silver bearing
Pb-free alloys
• Vaculoying process and unique additives minimize
dross
• Fast wetting speeds and high wetting force results in
excellent soldering across a wide variety of assemblies
• Silver and other additives result is strong, ductile
solder joints for reliability similar or better than
SAC305
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
26
ALPHA® SACX™ Plus 0807
Technical Bulletin and MSDS
Documents available from www.alpha.cooksonelectronics.com or
contact your local Alpha® sales office
The information contained herein is based on data considered accurate and is offered at no charge. No warranty is expressed or implied regarding
the accuracy of this data. Liability is expressly disclaimed for any loss or injury arising out of this information or use of any materials designated.
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