Table 6. ESD Voltage Measurement Data for Plastic Bead Media
|
Conformal Coating Type |
Sample ID |
Microblaster Parameters |
ESD Surface Voltage (Volts) |
Electrostatic Field (Volts/Inch) |
||||||||
|
Temp. (°C) |
Relative Humidity (%) |
Media Flow Rate (1-10) |
Gas Pressure (PSI) |
Site 1 |
Site 2 |
Site 3 |
Site 4 |
Site 5 (w/o ESD control) |
||||
|
Urethane |
U7 |
22 |
49 |
4 |
60 |
Min. Max. Avg. |
-31 -36 -33 |
-20 -33 -26 |
-178 -200 -189 |
-52 -56 -54 |
-3378 -3416 -3397 |
10 176 - |
|
Urethane |
U8 |
22 |
49 |
4 |
60 |
Min. Max. Avg. |
-2 -12 -7 |
-26 -32 -29 |
-218 -220 -219 |
-340 -358 -349 |
-2752 -2760 -2756 |
20 288 - |
|
Parylene |
P7 |
22 |
49 |
4 |
60 |
Min. Max. Avg. |
16 28 22 |
-76 -88 -82 |
-220 -233 -226 |
-480 -510 -495 |
-2832 -2899 -2865 |
8 56 - |
|
Parylene |
P8 |
22 |
49 |
4 |
60 |
Min. Max. Avg. |
21 35 28 |
-6 -11 -8 |
-250 -260 -255 |
-509 -540 -524 |
-2800 -3005 -2902 |
9 56 - |
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