The price of silicon wafers is dependent on many factors. In general, dollars per square inch of silicon has been a primary measure for the silicon wafer manufacturers and so it stands to reason that the larger the diameter of the silicon wafer the higher the cost per wafer. Other factors do come in to play including the volume of a given specification that is generally produced. For instance, far more P-type silicon wafers are produced globally than N-type silicon wafers. This decreases the availability of N-type silicon and increases the cost, while generally making P-type silicon wafers less costly. Other specifications like ultra-flatness will also drive up the cost because of the relative effort and higher yield loss that the requirements create.
Get a quick quote from WaferNet for silicon wafer pricing on small diameter products like our 100mm silicon wafers, or complete a Product Request form to obtain a quote from one of our sales representatives.