The attenuator PIN diode chips have a mesa construction and are silicon nitride passivated. Because of their thicker I-region and predictable Rs vs. I characteristics, they are well suited for lower distortion attenuator and switch circuits. M/A-COM's CERMACHIP PIN diodes employ M/A-COM's, time proven, patented hard glass passivation process . This unique passivation covers the entire PIN junction resulting in a hermetically sealed chip that has been qualified for many military and space applications. The CERMACHIP PIN diode chips are available with voltage ratings up to 3,000 volts and are capable of controlling kilowatts of power.