LEDtronics
Application Photos
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LEDtronics’ Long-Lasting, High Shock and Vibration
Resistant LEDs Bring Light to Semiautomatic Screener and Pick-and-Place
Machines
There’s an illumination dilemma
in some machines at electronics factories where surface mount technology
prevails.
 One of these is the screener, a semiautomatic machine where solder paste is
added to printed circuit boards (PCB) in a process very much like that used
with old silk-print technology. Putting observational light on the PC boards
from outside of the screener machine is difficult as the operator’s head
will cast an interfering shadow and hinder light from entering the machine.
Using a few LEDtronics’ Super-Intensity Sealed Backlight LED Modules
(LEDtronics Part Number STP301S-2x2-2CW-012) solves the problem. Now light
can flow inside the machine, and the operator can easily inspect the surface
of the PCB as it passes by to verify that the solder paste is properly applied
to each PCB surface.
 The pick-and-place machine is another common automated device that has the
same lighting challenge. Shadows prevent the operator from observing whether
the pick-and-place head is correctly positioning the components on the solder
pads of the printed circuit board. The problem is solved with the installation
of six LEDtronics’ Super-Intensity Sealed Backlight Modules (Part Number
STP301S-2x2-2CW-012). The Cool White LED light provides excellent optimal viewing
for the operator, who no longer has to remove the entire PCB from out of the
machine for inspection.
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