Streamlining Inspection and Verification


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Barry Matties speaks with Vladi Kaplan, VP of marketing for CIMS, about the company’s newest verification station, the benefits operators will see from its colorized real-time video, and how it makes verification much faster and much more efficient for companies pushing 100% inspection.

Barry Matties: Congratulations on some new equipment you’re showing at the International Electronics Circuit Exhibition in Shenzhen, China. First, can you give us a quick overview of CIMS?

Vladi Kaplan: We are an AOI equipment manufacturer and used to be known as Camtek. A little over two years ago, we were spun off of Camtek. For two years already, we have been a completely independent company, but the basis of our technology and the types of equipment that we are selling are the same. Of course, we have improved quite a lot, came up with a lot of new models, and are doing well.

Matties: And you’re introducing some new technology at this show.

Kaplan: Everything that we are showing this time is all about drill inspection. We have families of models for laser via inspection, which is a very hot topic right now, mainly driven by new demands from end-users for 100% inspection of laser vias. On top of that, there are various types of laser vias requiring inspection. Most recently, we see a new process of a direct laser via that drills all the way through the panels. It is similar to a mechanical drill, but with a laser, so our customers are looking for an inspection solution for that as well. Therefore, we have launched a dedicated model for the inspection of these type of products.

For this particular solution, we are using LED-based illumination called ViaLight™ that is built inside the table. It works in combination with our traditional illumination called Microlight™ illuminating the PCB surface from the top. With this dual illumination setup, we are able to see the entire full image of the drill, both from the inside and outside.

Matties: There must be a big need for it for you to invest in producing a machine like this.

Kaplan: We believe that we are right at the beginning of that kind of demand. We anticipate growth, and there’s a lot of interest, so we developed this solution based on emerging market demand. Since we have a reputation of a company that can develop a complex AOI solution quickly, we have customers coming to us and asking us to meet that specific demand. We have big hopes for this system.

Matties: More and more HDI work is taking place. Is that what you see as driving the anticipation for this?

Kaplan: Yes. As far as inspection goes, as I mentioned before, laser via inspection is a big part of it. Years ago, it used to be sampling purely for some calibration purposes. Right now, companies are pushing 100% inspection, which is why we focus on that, so there is a big, new inspection market for us out there.

Matties: The market has been down in Asia for a bit over the last few months. What do you see now?

Kaplan: We see a lot of optimism. Based on the attendance of these shows, we don’t see a downturn but the opposite. People are expecting a ramp up, and we feel like the market is picking up.

Matties: There’s a lot of talk about 5G. Is it a driving factor based on the conversations you’re having? 

Kaplan: It’s a big component of it, and there’s a lot of anticipation. China is moving ahead of the rest of the world in 5G. There is a lot of government encouragement and investment in this area, so it’s going to help all of us.

Matties: Absolutely. One of the other pieces of equipment you have is for inspection, and another is a verification system.

Kaplan: This is a new type of verification system called VVR, which stands for virtual verification and repair. The idea is to make verification more efficient than it used to be. This system s a combination of virtual and physical verification. By virtual verification, I mean grabbing defects’ images from the AOI machine and feeding them to our verification station. The first step is to go through those images to quickly filter out obvious false calls. The defects’ pictures that VVR operator sees are post-processed grey-level images from AOI, but you can’t tell that they are. Those images look just like a video with very natural color. We can achieve that natural look by using our unique post-processing technology that runs on every image grabbed by AOI. This way, VVR operators can see all the defects in a matrix, and in 90% of cases, can easily tell which are false calls and which are true defects.

CIMS-VVR-machine-710.jpg

The idea is to give an operator the opportunity to look at all of those images at once. They can set up as many as they want on one screen and choose those that they want to have a closer look at. For example, if they see a potential defect, such as something that could be either dust or a pinhole, they simply click to move the live video to that area. Then, they make a final judgment on whether it’s a defect or not. This sequence makes verification much faster and more efficient.

To read this entire interview, which appeared in the January 2020 issue of PCB007 Magazine, click here.

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