What is a Yield Engineer?

university wafer substrates

Silicon Wafers Used by Yield Engineers

A yield engineer requested a qutoe for the following.

I am looking for service provider that capable of growing Epi layer on square multicrystalline wafer of 156x156mm pseudo-square silicon wafers with thickness ranging from 180 to 200 micron. I confirm that you have the capability to grow Epi layer on square multicrystalline wafer of 156x156mm with thickness ranging from 180 to 200 micron. The Epi layer thickness require = 100um.

Reference #135212 for specs and pricing.

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Yield Engineer Requests Silicon Coupons

I'm a yield engineer. For our project, I am looking for some custom made Si Coupon. Could you please let me know if it is feasible and quote me for 200 dies.

Reference #216678 for specs and pricing.

 

What Is A Yield Engineer?

A yield engineer is a specialist in manufacturing, particularly in industries like semiconductors, electronics, or chemical production, whose primary responsibility is to improve production efficiency and ensure that as many products as possible meet the required specifications. The term "yield" refers to the percentage of products produced that are acceptable (or "good") versus those that are defective.

Here are some key responsibilities of a yield engineer:

  1. Monitoring and improving production processes: They analyze the manufacturing processes to identify inefficiencies or factors causing defects, then work to optimize these processes to reduce waste and increase the number of good units.

  2. Data analysis: Yield engineers use data-driven approaches to track yields over time, identify patterns, and determine the root causes of low yield.

  3. Troubleshooting: When production yields drop, a yield engineer works to quickly diagnose and solve problems, whether they are caused by equipment malfunction, material issues, or process variations.

  4. Collaboration: They often collaborate with process engineers, equipment technicians, and design teams to ensure that all aspects of manufacturing are optimized for high yield.

  5. Reporting: Yield engineers provide reports on production performance, yield rates, and areas needing improvement, often using statistical tools like SPC (Statistical Process Control).

In sectors like semiconductor manufacturing, yield engineers are particularly important because of the complexity of the production processes, where even minor inefficiencies can lead to significant financial losses due to high costs of materials and equipment.