Home Resource Center Product Data and Related Literature Microelectronics Packaging Materials Hermetic Lids Hermetic Lids Resources Ceramic Combo-Lid Materion's unique hermetic Ceramic Combo-Lid with selectively metalized seal ring. Combo Lids Materion is a lead supplier of hermetic cover lids for high reliability applications in semiconductor, hybrid, MEMS, medical and optical devices. Combo Lids Data Sheet Materion is the leading supplier of hermetic cover lids for high reliability applications in semiconductor, hybrid, MEMS, medical and optical devices. Etch Lid Our innovative Etch Lid provides seam sealed hermetic packaging for chips that will not tolerate high soldering temperatures. Also, a hetmetic lid with minimal precious metal content to minimize cost. Microelectronic Packaging Comparison Chart Materion offers hermetic lids for every possible application. When it comes to packaging - we've got you covered! Visi Lids Materion Visi Lids™ are the first commercially available hermetic optical cover lid assembly. Visi-Lid Optical Window Materion has developed a hermetic optical cover lid assembly that addresses the light-sensitive requirements for electronic devices.