SMT2000 datasheet(2/8 Pages) ETC1

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PALLAMERSE SMT 2000

BATH OPERATION

1. Before heating the bath make sure that the filter

cartridge is not in the circulation system. After the

last rack is through the Pallamerse tank, shut down

the heater and cover the tank. Maintain solution

circulation for a minimum of 45 minutes after the

heater is turned off.

2. Regularly filter the solution between production

periods with circulation pump and 1 micron filter

cartridge (when bath temperature is below 50°C).

3. Clean and etch the tank only when significant Pd

metal is found in the tank or on the heater:

a) Transfer the solution (below 50°C) into a hold-

ing tank through a 1 micron filter bag.

b) Thoroughly rinse out the working tank with

deionized water. Flush or vacuum away metal

deposits as much as possible. Remove the water

to waste.

c) Add etching solution (30 ml/l nitric acid conc.,

tank volume) to the working tank and circulate

the solution for approximately 1 hour and

allow the etching solution to remain in the

tank overnight. Transfer the solution to a

storage container.

d) Thoroughly rinse the tank and the pump system

with tap water. Discard water;

e) Add ammonia solution (approximately 30 ml/l

ammonia hydroxide). Adjust pH of the solution

above 8.0 with ammonia. Circulate the solution

for approximately 0.5 hour. Discard the

ammonia solution.

f) Repeat step d).

g) Use deionized water for final rinse.

Discard water.

h) Transfer the working solution to working tank

through a 1 micron filter bag. Control pH

before heating the bath.

SOLUTION MAINTENANCE

OPERATING NOTES

Deposition rate is influenced by palladium concentra-

tion, temperature, pH and Pallamerse SMT Reducer

concentration. To ensure consistency of deposition rate,

maintain these constituents within recommended

operating range.

Process Sequence

Process

Temperature Time

Ronaclean™ PC-454

57–63°C

3 minutes

or PC-921

(135–145°F)

Rinse

1 minute

Rinse

1 minute

Preposit Etch 748

21-32°C

1 minute

(70–90°F)

Rinse

1 minute

Rinse

1 minute

20% v/v Hydrochloric Acid RT

1 minute

Ronamerse SMT

21–27°C

5–15 minutes

Catalyst

(70–80°F)

depending on

substrate

Rinse

1 minute

20% v/v Hydrochloric Acid RT

1 minute

Rinse

1 minute

DI Rinse

1 minute

Duraposit™ SMT-88

82–91°C

22 minutes

(180–195°F)

Rinse

1 minute

DI Rinse

1 minute

Ronamerse™ SMT Catalyst 25–35°C

2–3 minutes

(78–95°F)

Rinse

0.5 minutes

DI Rinse

0.5 minutes

Pallamerse SMT 2000

65–70°C

8–12 mins.

(149–158°F)

(0.10–0.30 µm)

(4–12 µinches)

Palladium Drag Out

1 minute

DI Rinse

60°C (140°F)

1 minute

Aurolectroless SMT

86°C (187°F)

10 minutes

85–88°C

(185–190°F)

Gold Dragout

1 minute

DI Rinse

60°C (140°F)

1 minute

Dry

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