MATERIALS | HIGH TEMPERATURE THERMOPLASTICS


Right: SABIC’s new Konduit 8TF36E LNP compound can be used for the adaptor and latch parts of burn-in test sockets


These included the recently launched Extem RH1016UCL resin, a thermoplastic polyimide material well suited for injection moulding lenses used in co-pack- aged optical transceiv- ers, and Ultem 3310TD resin, a polyetherimide material with very low thermal expansion, targeting lenses for single mode optical transceivers. High-heat Extem RH1016UCL, a 2023 Edison Award finalist in the Next Generation Manufacturing category, can withstand the 260°C peak temperature of PCB reflow soldering while maintaining the dimensional stability required of complex, miniaturised lenses and arrays. Mean- while, Ultem 3310TD features a very low coefficient of thermal expansion (CTE), which can play a key role in maximising the dimensional stability of collimator lenses and pinpointing alignment with single-mode fibres. As both resins feature design flexibility, near-


infrared transparency, ultra-high-temperature resistance, dimensional stability and high-volume processing capabilities, it is hoped they can help the industry transition to co-packaged optics and single-mode fibre optic systems that improve data centre bandwidth capacity and energy efficiency. Last November, SABIC introduced its LNP


Konduit 8TF36E compound, a new specialty material that addresses the stringent demands of burn-in test sockets (BiTS) used to stress-test double-data-rate (DDR) memory integrated circuits (ICs). As the number of pins and the testing temperature for DDR ICs increase and their dimensions shrink, materials must deliver en- hanced properties. This new compound provides very high flow to facilitate complex, miniaturized BiTS designs, excellent dimensional stability, and high temperature resistance, as well as thermal conductivity of up to 4.5W/m.k to rapidly dissipate heat afterwards.


During the testing process, the compound withstood typical temperatures of 150°C while maintaining good dimensional stability. This high heat capability can potentially permit BiTS to be re-used repeatedly without degrading. It is claimed LNP Konduit 8TF36E can handle temperatures up to 260°C. “Advancements in memory chips are placing new demands on burn-in test sockets,” said Jenny Wang, Director, Formulation and Application,


50 INJECTION WORLD | April 2023


APAC, Sabic. “As the power of DDR ICs increases, temperature control is critical to verify that all devices in a BiTS system are uniformly stressed during reliability testing. LNP Konduit achieves what incumbent materials cannot. Not only does it provide high thermal


conductivity, but it also delivers other key properties that contribute to


successful testing.” A technology currently on everyone’s mind due to the shift to renewable energy is the production and use of ‘green’ hydrogen. High purity is a common requirement for polymers, especially in the case of key components of like fuel cells or electrolysers where there are additional requirements pertaining to chemical, thermal and mechanical resistance. In these applications, polymers frequently come into contact with particularly aggressive media such as deionised water or cooling agents like water-glycol mixtures. Mocom has developed especially for this


application area glass fibre-reinforced Tedur PPS compounds with high chemical resistance, thermal and mechanical stability, as well as low ion leakage over long operating times. Tedur L PPS FT 2030 SB1171-22 or Tedur L PPS FT 2040 SB1152-22 have outstanding properties such as low creep at increased temperatures, chemical resistance and excellent stability against ion leakage in deionised water at 70°C to 80°C which allow the compounds to be used in port splitters or stack end plates of fuel cells. They are also in demand in closed systems, such as the cooling cycle of fuel cells. These systems are designed for up to 135°C and are considered closed if the coolant circulates in a closed loop and is not constantly replaced.


CLICK ON THE LINKS FOR MORE INFORMATION: � www.rtpcompany.com � www.eurotec-ep.com � www.ascendmaterials.com � www.solvay.com � www.genestar.kuraray.com � www.celanese.com � www.lati.com � www.emsgrivory.com � www.sabic.com/en � www.mocom.eu


www.injectionworld.com


IMAGE: SABIC


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