A piercing station for piercing sample container caps or thick stoppers is provided. Such an aqueous suspension of calco-magnesian solid matter can achieve a very low viscosity, making it possible to greatly increase the solid matter concentration of the suspension, or again to reduce the size of the particles in suspension, thus obtaining a concentrated and reactive milk of lime. The transmission line is made up of a number of passive micro-diodes with ballistic electron transport. A small signal write driver circuit is coupled to the global bit lines and configured to output a small signal differential voltage on the global bit lines during write cycles.