You run a business that depends on silicon wafers and you need them for your products and services no matter what. You should find a good service that can provide you with the services to repurpose your wafers when you need that and one that will provide you with the new wafers that you need as well. It is just a matter of finding a good company that will work with you.
You might want to consider a pick and place service that will work for you. You have a lot of wafers that need to be made so you can continue with your high production standards. You need the right silicon wafers at the right price and you need to be able to repurpose old wafers that are no longer making the grade. You will find the right services for you so you can have good operations.
Consider all the wafers you will need. If it is just a few, it almost does not matter what service you use. On the other hand, if you have massive orders on a regular basis, you will need a stronger service on your side. With better services, you can have all the silicon wafers you need for your production standards to be met.
You want to be sure the services you are using has plenty of clean rooms to work in. In addition to that, you will want to know that they pay attention to detail in every way possible. You cannot afford any errors in your silicon wafers at all. You need services you can rely upon every step of the way. Find a company that has a good reputation when it comes to making silicon wafers.
Think about all the wafers you need to repurpose as well. They should not go to waste. They can be polished and made new again.