AN032 PCB Technologies for LED Applications
The selection of appropriate materials for the circuit bo ard is therefore of utmost importance. FR4 printed circuit board (PCB) Classic composite PCB of glass fiber and epoxy resin, available in various compounds, versions (single-/ multilayer) and thickness (0.3 — 3.5 mm). Table 1: FR4 PCB versions Designation Material Note
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AN021 Further details on lead-free reflow soldering of LEDs
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AN122 Chemical compatibility of LEDs - dammedia.osram.info
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AN109 Dry pack information - dammedia.osram.info
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www.osram.de/ledcheck
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AN006 Reliability and lifetime of LEDs
dammedia.osram.infoof customer expectations over the expected lifetime. In other words, the LED does not fail during its lifetime under the given environmental and functional conditions. The reliability of the products is thus based on the chain of the materials, the manufacturing process and the function of the component (Figure 1).
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