820-0332
6-1
Maintenance & Troubleshooting
Ink Troubleshooting
This Troubleshooting section for the Micro-Z Pneumatic Inker is divided into three parts. The first part
covers Ink and the DM-2 ink cartridge. The second part covers the Inker Assembly, and the third part covers
the Pneumatic Controller. More troubleshooting information is available in the “Support” section at
Problem
Solution
Some ink dots tend to crack
after baking using Xandex
recommended cure cycles.
This occurrence is related to the ink surface tension, the
wafer surface conditions and too long a delay time
between inking and curing. To remedy this situation, the
curing cycle has to be modified (reduce time and
temperature). See
Section 5 “Ink Curing.”
Runny, blobbing ink or
skipping dots.
1.
Check ink shelf life. 6990, 6993, 6997 inks should
be used within 4 months or 5 days of cartridge
opening. 8103 and 8104 air dry glycol free inks
should be used within 4 months or 3 days of
cartridge opening. 7824 and 7824T air-dry ink
within 4 months or 3 days after cartridge opening.
2.
Check for exposure to extreme temperatures.
Cartridges should be stored at 25°C.
DO NOT
refrigerate the cartridges.
Occasionally, ink is
subjected to much higher temperatures (40-50° C)
for an extended time during transport. This could
break down the ink such that its viscosity and
surface tension are altered permanently.
3.
Z height adjustment is incorrect. After cartridge
replacement, minor Z height adjustment may be re-
quired. See
Section 4 “Inker Assembly Setup and
Alignment.”
4.
Chuck top or wafer surface not planar. Verify
planarity of both.
After changing the
controller dot size settings,
the dots are too small or the
ink blobs at the tip of the
needle.
1. The cartridge tip may be damaged. Examine
cartridge and replace if necessary.
2.
Whenever dot size is changed there may be minor Z
height adjustments required. The inker should be
set so that just the bottom of the ink drop touches
the wafer.
Summary of Contents for 340-7110
Page 10: ...1 2 820 0332 This page is intentionally left blank...
Page 18: ...Controller Installation Installation 3 6 820 0332 This page is intentionally left blank...
Page 34: ...Cartridge Priming Tips System Operation 820 0332 4 16 This page is intentionally left blank...
Page 40: ...Ink Removal Information Ink 820 0332 5 6 This page is intentionally left blank...
