Got it! This website uses cookies to ensure you get the best experience on our website More info DEEN COMPANY MATERIAL TECHNOLOGIES PRODUCTS & SOLUTIONS SERVICE Products based on fused quartz are essential for MODERN COMMUNICATION 1 2 3 4 COMPANY QSIL CERAMICS QSIL GLASS ilmasil® PQ QSIL's premium brand With the premium brand ilmasil® PQ QSIL offers a material for highest requirements. This clear fused quartz excels the highest purity standards for semiconductor materials: With a sum of total 5 ppm for all typical trace elements the purity of ilmasil® PQ falls below the values of highest purity level of any fused quartz materials manufactured from natural sand. Its outstanding bubble content together with the low OH-content make ilmasil® PQ a perfect choice for sensitive applications in semiconductor manufacturing processes. more details... COMPANYMATERIALTECHNOLOGIESPRODUCTS & SOLUTIONSSERVICE IMPRINTPRIVACY POLICYDISCLAIMERSITEMAP QSIL AG / Gewerbering 8 / 98693 Ilmenau / Germany QSIL GmbH Quarzschmelze Ilmenau / Gewerbering 8 / 98693 Ilmenau / Germany QSIL Nederland B.V. / H.M. Brouwerstraat 1 / 9672 AG Winschoten / The Netherlands QSIL Ceramics GmbH / Triptiser Straße 22 / 07955 Auma-Weidatal / Germany QSIL Ingenieurkeramik GmbH / Gewerbepark 11 / 96528 Frankenblick / Germany QSIL is the specialist when it comes to advanced solutions made from high-performance materials, fused silica and engineered ceramics. From the prototype to the serial production of complex special components made of individually optimized materials - QSIL offers an extensive product and material portfolio.