Adhesives for Applications in Optoelectronics
Optoelectronics comprises all products and processes that enable the conversion of electrical signals into optical signals and vice versa.
Special adhesives are used to manufacture optoelectronic products. For example, optically transparent and non-yellowing adhesives are used as glob tops for diodes or LEDs. Panacol products are filled with special nanoscale filler particles, which have the advantage that they do not impair the optical properties and at the same time greatly improve the mechanical properties of the adhesive.
Panacol offers various epoxy resin-based adhesives specifically for fixing and aligning photodiodes and optical fibers for recording optical signals.
All adhesives exhibit low thermal expansion and stress on the underlying fine electronics, as well as good resistance to chemicals and the influence of media. In addition, the properties of the adhesives for optoelectronics are designed to have low shrinkage and low outgassing.
For small LEDs, adhesives are used both to attach the LED modules to the circuit board (red adhesive) and to encapsulate the chips with transparent adhesive (shown here in blue)
Download:
The table below lists a selection of adhesives that are suitable for applications in optoelectronics. Further products and custom solutions are available on request.
To download the technical datasheets (TDS) please click on the adhesive name.
Adhesive | Application | Viscosity [mPas] | Base | Curing* | Properties |
---|---|---|---|---|---|
Vitralit® 1605 |
encapsulation of electronic components optical cement lens bonding cement glass bonding potting material |
200-400 (LVT, 25°C, Sp. 2/30 rpm) | epoxy |
UV secondary heat cure |
low shrinkage low heat expansion very high tg excellent chemical resistance certified to ISO 10993-5 standards |
Vitralit® 1527 |
optical cement lens bonding cement glass bonding potting material |
600-1,250 | epoxy | UV |
Very high tg low attenuation high transmission high chemical resistance nanostructured fillers |
Vitralit® 1528 |
optical cement lens bonding cement glass bonding potting material |
350-850 | epoxy |
UV secondary heat cure |
low attenuation very high Tg |
Vitralit® UC 1618 |
optical cement lens bonding cement |
500-1,000 | epoxy |
UV secondary heat cure |
high glass transition temperature high chemical resistance transparent low thermal expansion |
*UV = 320 - 390 nm