RLM419p-Manual-E
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can be found on the outer right side of the unit, beneath the hand knob (8). In order to well press the
mask into the profile between the copper traces, we recommend a setting of 4 to 5. Photoresist ap-
plication is done at a setting of 1 to 2.
Attention: Set pressure to 0 every time you stop work, to avoid press marks on the rollers.
The positions 0 - 6 on the indicator scale (right hand side of the device)
correspond approximately to the following values:
Scale
posi-
tion
Roller pressure Application
Scale
posi-
tion
Roller pres-
sure
Application
0
approx. 4 kg
4
approx. 12 kg
Solder mask
1
approx. 6 kg
Tenting resist
5
approx. 14 kg
2
approx. 8 kg
6
approx. 16 kg
3
approx. 10 kg
Mounting the laminate coils.
The following procedure is the same for photoresist and for solder mask laminate, but we assume
you use only one type at a time on both the upper and lower coil.
Unpack the laminate rolls from their safelight boxes and mount them on the left flanges of the coil
holders. See the roller schematic in order to have the right sense of coil rotation. Mount the right
flanges and push them onto the coil as far as possible. The coils must not slip on the flanges. If the
coils slip on the flanges, the separation foil might get between the heating rollers. Mount the coil
holders back to the laminator and put the take-up rollers back in their place.
The laminate consists of three layers. These are the outer, strong
and transparent polyester cover foil, the soft and sticky laminate
layer itself and a thin, soft and mat plastic foil on the "inner" side of
the compound. This thin foil prevents that the laminate sticks to it-
self when it is on the coil, but this foil must be removed before the
laminate goes on the board. This separation foil will wind up on the
take-up rollers.
The picture on the right shows the three layers:
1 is the polyolefin-separation foil
2 is the actual photo polymer
3 is the polyester-protection foil, that you normally remove before
developing.
Pull the laminate off the lower coil for about 30 cm. Apply a piece of
adhesive tape to the upper and lower end of the laminate com-
pound and pull these "handles" to separate the thin separation foil
from the laminate.
Bungard Elektronik GmbH & Co. KG, Rilkestraße 1, 51570 Windeck – Germany
Tel.: +49 2292 / 9 28 28-0, Fax: +49 2292 / 9 28 28-29
, E-mail: [email protected]