Automated alerts

While automated reports are very good for monitoring when something does go wrong, e.g. a low yield, or a parametric shift, it is important to know as soon as possible. This is where alerts are key.

Problem detection: yieldHUB is in the cloud so it is always on. When it detects a problem it will send an alert to anyone set-up to receive them. This makes problem-solving easier and quicker.

Peace of mind: Alerts are set-up in approx 10 seconds. So there is no reason not to be first to know when there is an issue with your product. It also means you don’t have to check on each project as often. If you don't get an alert, everything is going well. The yield management gives you peace of mind that production is running smoothly, without you even have to log in.

Choose what alerts your team receives: Your engineers will be able to receive alerts and daily reports covering yield, bins and tests, even on their smartphone. The alerts will be based on rules decided by the engineers to spot yield, bin and parametric exceptions.

yieldHUB is cloud-based so it is on all the time. When it detects an issue, it will send a notification. It allows your team to deal with issues early on, and prevent them from becoming bigger issues. This increases the chances of meeting company deadlines and improving profitability. Because the engineering team is freed up from procuring data, they have more time to solve the problems that arise.

The detection of yield, bin and parametric issues is done automatically on the server. Alerts are based on rules set-up by the user. For example, when looking at a yield value on a search table, you can simply click on the value and a user interface appears that allows you to set an alert for yield within bounds you decide yourself. It also allows you to copy other users that would be interested in receiving the alert. It’s the same for bin and parametric alerts. The alerts are setup in seconds when looking at results.

If you don’t want to receive alerts, you can opt for a dashboard where the anomalous material is listed and from where you can drill down into analysis reports for each wafer or lot.

If you want non-users to be alerted, you have the option to add email only users to receive alerts from yieldHUB.

Interestingly, some customers have “quality-based” alerts. These alerts are triggered when yields are too good to be true. Eg a product that typically has 97% yield should never have greater than 99% yield and hence an alert can be set-up to catch that. The nature of some handlers is that you may have bogus bin 1s being reported and this helps capture that phenomenon.

Byungwoo Han, Principal Engineer – Test Development, ADTechnology Inc