TECHCON TS980, User Manual, Page: 59 / 65

11.2 Key Variables
Variables Effects
Fluid Pressure
•
Droplet size can be adjusted by
changing fluid pressure
•
Droplet size can be adjusted by
changing fluid pressure
•
Too much fluid pressure can cause
accumulation
•
Too little fluid pressure can cause
inconsistent dot size or “starvation”
Nozzle Size
•
Determine the droplet size
•
Bigger nozzle size will produce
bigger dot size or line width
•
Smaller nozzle size will produce
smaller dot size or line width
Needle Lift (stroke length)
•
Range = 50 – 95%
•
Too high needle lift may cause
satellite
•
Too short needle lift may cause
accumulation
Open Time
•
Droplet size can be adjusted by
changing open time
•
Increasing open time will increase dot
size
•
Decreasing open time will decrease
dot size
Jet Distance
•
Distance between nozzle and substrate
•
Distance range = 3 – 10 mm
•
Too high jet distance can cause
satellite
•
Too short jet distance can cause
accumulation
11.3 Nozzle Selection
Nozzle Size (µm) Dot weight (µg)
SG = 1
Dot Diameter (µm)
50 0.5-10 180-300
70 5-25 250-400
100 15-50 390-580
120 25-80 430-550
150 60-100 580-650
200 80-200 640-800
300 100-300 700-1500
400 200-500 1400-2000
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Jet Valve Dispensing System User Guide
TS9800 & TS980