Wafers are a key component in the majority of technological components. They are used in electronics for the fabrication of integrated circuits and in photovoltaics for conventional, wafer-based solar cells. While the majority of wafers are purchased brand new, in some situations reclaimed wafers can be used for a fraction of the cost. Let’s take a look at some terms you should know when it comes to InP reclaim wafers.
Boat – A boat is a device made of high purity temperature resistant materials. This can include fused silica, quartz, or poly Si. It is designed to hold many semiconductor wafers during thermal or other processes. A boat can also refer to a device that is designed to simultaneously contain source material during evaporation and heat the source to its melting point.
Cleanroom – A clean room is a secure, and clean, space where the semiconductors are manufactured. Every aspect of a cleanroom is strictly controlled, from the room temperature to the number of particles in the air. Cleanrooms are rated and range from Class 1 to Class 10,000. The number corresponds to the number of particles per cubic foot.
Reclaim Grade – Reclaim grade refers to the grade of a reclaim wafer. A reclaim wafer is a lower quality wafer that has been used in manufacturing and then reclaimed and used a second time in manufacturing.