C12 Carbon Paste products are made with specially processed, ultra-pure carbon. C12 thermally fugitive Carbon Pastes are used to form embedded channels, cavities, and MEMs structures in multilayer ceramics such as LTCC and HTCC substrates. C12 Carbon Pastes have the highest solids loading available, which results in very low shrinkage and crack-free prints. Other thermally fugitive pastes and materials with lower carbon loading and excessive binder content often cause stress, warping, and damage to delicate structures during firing. C12 Carbon Pastes are designed to be compatible with all major commercial LTCC tape and screen printable systems.
Ultra-pure C12 Carbon Pastes are engineered to burn out cleanly in air atmospheres. C12 Carbon Pastes begin to rapidly oxidize at 600C, just as the LTCC ceramic matrix sinters, leaving behind well-defined features such as cavities and channels. C12 Carbon Pastes create precise, stress-free structures, unlike conventional fugitive materials such as waxes and polymers, which often leave residue and result in stress related deformation. C12 Carbon Pastes can also be a cost effective alternative to using removable inserts such as platinum or latex for creating structural features.