factsheet fp2 - 2n gold wire for proven ultimate reliability · fp2 2n gold wire for proven...
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FP2 2N Gold Wire for Proven Ultimate Reliability
FP2 BenefitsUltimate reliability wire through slowand uniform inter-metallic growthSuperior elastic modulus provides sweep resistance for long wire span or ultra-fine pitchShort, fine-grain HAZ permits extremelylow loopingExcellent for ultra-fine wire diametersand low-k device compatibility
Recommended Technical Data of FP2
Diameter Microns 15 18 20 23 25 28 30 32 33
Mils 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.25 1.3
Recommended Specs for Ball Bonding
Elongation (%) 2 – 5 2 – 6 2 – 6 2 – 7 2 – 7 2 – 7 2 – 7 2 – 7 2 – 7
Breaking Load (g) 3 – 7 5 – 9 6 – 11 9 – 14 11 – 16 14 – 20 16 – 21 18 – 24 19 – 26
In-Line Pad Pitch (µm)
Min. In-Line Pad Pitch 35 45 50 60 65 70 80
For other diameters, please contact Heraeus Bonding Wires sales representative.
6.25 µm10,000 hours
Reliable intermetallic grwoth –Cross-section of device after aging @ 175°C
Cross-section of Fine & Short HAZ
20 µm
Slow Intermetallic Phase Growth Rate5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.01 10
FP2
Rev Wire
100 1000 10000
Isothermal Aging @ 175°C [hrs]
IP th
ickn
ess
[µm
]
FP2 Characteristics for 25 µm diameter
Non-Gold Elements < 1%
Elastic Modulus � 90 GPa
Heat Affected Zone (HAZ) 35 – 110 µm
Melting Point 1063 °C
Density 19.28 g/cm3
Heat Conductivity 2.25 W/cm.K
Electrical Resistivity 3.24 µ�-cm
Coeff. of Linear Expansion (20 – 100°C) 14.2 ppm/K
Fusing Current for 30 µm, dia 10 mm length (in air) 0.37 A
FAB Hardness 60 – 70 HV (0.01 N/5 s)
10,000 hours @ 175°C HTS (1 mil)
12
10
8
6
4
2
0
1 100 200 500 1000 2000 3000 5000 10000
Isothermal Aging @ 175°C [hrs]
Ball
Pull
Stre
ngth
[g]
Ultra Fine Wire @ 200°C HTS (0.6 mil)6
5
4
3
2
1
0
1 100 200 500 600 800 900 1000 1500
Isothermal Aging @ 200°C [hrs]
Ball
Pull
Stre
ngth
[g]
Slightly larger FAB over 4N Wire2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.501.00 1.20
FP2 4N
1.40 1.60 1.80 2.00 2.20
Dialed in FAB [mils]
Aver
age
FAB
[mils
]
App
licat
ion
Not
e:.Dialed FAB is slightly larger than usual 4N wire
(refer to graph on the right)
.Recommended to use K&S Fortus Capillary with FP2
Gold Wire Segmentation by Properties
Superior Reliability
Widest Bonding Highest LoopingWindow Performance
Superior Reliability
Widest Bonding Highest LoopingWindow Performance
Superior Reliability
Electrical Performance
Widest Bonding Highest LoopingWindow Performance
High
Average
Sensitive pad
structure
High Loop / Low Loop
N, L
ayou
t: HE
T140
12-051
6-1
The
data
giv
en h
ere
is v
alid
. We
rese
rve
the
right
to m
ake
tech
nica
l alte
ratio
ns.
Heraeus ElectronicsHeraeus Deutschland GmbH & Co. KG Heraeusstraße 12-1463450 Hanau, Germanywww.heraeus-electronics.com
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The descriptions and engineering data shown here have been compiled by Heraeus using commonly-accepted procedures, in conjunction with modern testing equipment, and have been compiled as according to the latest factual knowledge in our possession. The information was up-to date on the date this document was printed (latest versions can always be supplied upon request). Although the data is considered accurate, we cannot guarantee accuracy, the results obtained from its use, or any patent infringement resulting from its use (unless this is contractually and explicitly agreed in writing, in advance). The data is supplied on the condition that the user shall conduct tests to determine materials suitability for particular application.