Three Steps to Improve Yield

摘要

Most companies attempt to achieve higher yield in SMT products through trial and error at considerable expense and frustration. Even though we have been manufacturing SMT products in high volume for more than two decades, less than 10% of companies have first pass yield (FPY) of more than 90%. In other words, 90% of companies are conducting too much rework. Rework adds to the cost of the product and reduces the reliability of solder joints due to an increase in intermetallic thickness each time the solder joint is reflowed.