For your info, I have listed a big number of Worldwide Laminate Manufacturers with their email address, website, tel number etc.. There is some distributors also.. The idea is also of providing some info about Halogen-Free Laminates ... So for those of you who know the ones I am missing, please let me know. Also, I am seeking a specialist in Thermal conductive interface ... is there one ? Very Best Regards Roland PCB Consultant - Company Viability - Technical Viability - Technology Choice - Yield Improvement - Company Strategy - Equipment Choice - Company Acquisition Tel. +41-22-880-0405 - GSM (cellphone) +41-79-203-3723 - Fax +41-22-880-0409 Http://www.PCBspecialist.com 21 Grand-Voiret - CH-1228 Plan-Les-Ouates - Geneva - Switzerland ----- Message d'origine ----- De : KUMAR À : [log in to unmask] Envoyé : lundi, 19. février 2001 18:11 Objet : [TN] materials hello, whats the difference between the materials fr4, gtec, rogers, polymide & teflon ? thanx kumar