How to improve semiconductor process yield?

[larrystanley]

Hi,

There has been a lot of discussions on semiconductor process technology yields lately. So I'd just like to open up this thread to discuss the topic on how that can actually be done to improve that in practice.

Let's say the initial yields are at only 10-20%. Then what changes to the original process can be made to improve that? After all the process yields can eventually reach 50-80% or more with time. That's a really big improvement.

Does the process equipment have to be changed / swapped out? Any steps that can be fine tuned to become more accurate? If someone could give us examples of what changes can be made to improve yield, I think that would be very interesting.

So if you know anything about this, please share it!

I'm new in this forum, I am a consultant and have worked with multiple firms
You can check Fleet Management System Video one of my work.

 

[headhound]

Very simple process. Take the fallout and analyze to root cause. Determine corrective action and implement. My experience has yields and quality significantly improving in less that 3 months.

 

[Jennaburton]

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