s pyatt cicorel optimised welding parameters. s pyatt 30 degree loop parameters
TRANSCRIPT
![Page 1: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/1.jpg)
S Pyatt
Cicorel optimised welding parameters
![Page 2: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/2.jpg)
S Pyatt
30 degree loop parameters
![Page 3: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/3.jpg)
S Pyatt
BJ820 bond chart for Cicorel board
![Page 4: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/4.jpg)
S Pyatt
BJ820 bond chart for Loctite 3525 die to sub
Work in progress
![Page 5: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/5.jpg)
S Pyatt
BJ820 bond chart for Loctite 3525 die to die
Work in progress
![Page 6: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/6.jpg)
S Pyatt
BJ820 bond chart for Dymax 6 621 die to sub
![Page 7: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/7.jpg)
S Pyatt
BJ820 bond chart for Dymax 6 621 die to die
![Page 8: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/8.jpg)
S Pyatt
BJ820 bond chart for Dymax 3013 die to sub
![Page 9: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/9.jpg)
S Pyatt
BJ820 bond chart for Dymax 3013 die to die
![Page 10: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/10.jpg)
S Pyatt
BJ820 bond chart for Dymax 3013 die to sub
![Page 11: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/11.jpg)
S Pyatt
BJ820 bond chart for TRA DUCT die to die
![Page 12: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/12.jpg)
S Pyatt
BJ820 bond chart for TRA DUCT die to sub
Work in progress
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S Pyatt
Pull test results Loctite 3525 die to die
Work in progress
![Page 14: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/14.jpg)
S Pyatt
Pull test results Dymax 6 621 die to die
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 790
2
4
6
8
10
12
Pull test number
Gram
s
First heel break
Second heel break
First heel peel Second heel peel
05
1015202530354045
Freq
uenc
y
Average g: 9.470557Std Dev g: 0.440693
Fail type FrequencyFirst heel break 37
Second heel break 42First heel peel 0
Second heel peel 0
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S Pyatt
Pull test results Dymax 3013 die to die
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 798
8.2
8.4
8.6
8.8
9
9.2
9.4
9.6
9.8
10
10.2
10.4
Pull test number
Gram
s
Average g: 9.310747Std Dev g: 0.481358
Fail type FrequencyFirst heel break 79
Second heel break 0First heel peel 0
Second heel peel 0First heel
breakSecond heel
breakFirst heel peel Second heel
peel
0102030405060708090
Freq
uenc
y
![Page 16: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/16.jpg)
S Pyatt
Pull test results TRA DUCT die to die
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 820
2
4
6
8
10
12
Pull test number
Gram
s
First heel break
Second heel break
First heel peel Second heel peel
0102030405060708090
Freq
uenc
y
Average g: 8.99628Std Dev g: 0.488235
Fail type FrequencyFirst heel break 82
Second heel break 0First heel peel 0
Second heel peel 0
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S Pyatt
Pull test results Loctite 3525 die to substrate
Work in progress
![Page 18: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/18.jpg)
S Pyatt
Pull test results Dymax 6 621 die to substrate
1 2 3 4 5 6 7 8 9 1011121314151617181920212223242526272829303132333435363738394041424344454647484950510
2
4
6
8
10
12
14
16
Pull test number
Gram
s
First heel break
Second heel break
First heel peel Second heel peel
0
5
10
15
20
25
30
Freq
uenc
y
Average g: 10.88151Std Dev g: 1.444102
Fail type FrequencyFirst heel break 14
Second heel break 13First heel peel 0
Second heel peel 24
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S Pyatt
Pull test results Dymax 3013 die to substrate
1 2 3 4 5 6 7 8 9 1011121314151617181920212223242526272829303132333435363738394041424344454647484950510
2
4
6
8
10
12
14
16
Pull test number
Gram
s
First heel break
Second heel break
First heel peel Second heel peel
0
5
10
15
20
25
30
Freq
uenc
y
Average g: 10.6189Std Dev g: 1.301571
Fail type FrequencyFirst heel break 18
Second heel break 6First heel peel 0
Second heel peel 27
![Page 20: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/20.jpg)
S Pyatt
Pull test results TRA DUCT die to substrate
Work in progress
![Page 21: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/21.jpg)
S Pyatt
Why is there are difference? Pull angles!
![Page 22: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/22.jpg)
S Pyatt
Maths goes h
ere
![Page 23: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/23.jpg)
S Pyatt
The peels are actually vertical tears
Completed weld marks
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S Pyatt
Meanwhile on the dies
No peels. All heel breaks.
![Page 25: S Pyatt Cicorel optimised welding parameters. S Pyatt 30 degree loop parameters](https://reader036.vdocuments.net/reader036/viewer/2022081506/56649d8a5503460f94a7033a/html5/thumbnails/25.jpg)
S Pyatt
Conclusions
• All three UV glues are suitable for wire bonding on the Hesse BJ820.
• Pull testing for die to die wires gives the correct results.
• Pull testing for die to substrate wires gives false results due to incorrect pull angles. The process is not suitable for production work.