Gore introduces 20nm PTFE filter in HDPE cartridge

For bulk processing of high-purity chemicals used in semiconductors and flat panel displays

20nm-rated PTFE filter available in a high-density polyethylene (HDPE) cartridge is said to be a world first

W L Gore & Associates (Gore) has introduced a 20nm-rated polytetraflouroethylene (PTFE) filter that is available in a high-density polyethylene (HDPE) cartridge.

The US firm claims the filter, which is part of a new family of PTFE membrane/HDPE filters optimised for the bulk processing of high-purity chemicals used in the fabrication of semiconductors and flat panel displays (FPDs), is a world first.

Gore says the filter provides the highest particle retention possible while maintaining process capacity. It is available in three retention ratings of 0.1┬Ám, 30nm and 20nm.

Compared with conventional filtration media, the new PTFE membrane technology provides a significantly increased open porous area for fluid flow, and the structural characteristics of the membrane provide a high level of retention.

Combined with the low metal ion and organic extractables of an all-HDPE cartridge, the 20nm-rated PTFE/HPDE filter cartridges enable a drop-in retention upgrade without any sacrifice to existing system flow.

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