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AOI: Agilent vs. Omron vs. MIRTec/YESTech?

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 27 November, 2006

Could anyone please help me in my evaluation of Agilent vs. Omron vs. MIRTech/YESTech AOI? We are a high-mix low-to-mid volume manufacturer looking to gain not just a screening method but real process understanding that a Quality Engineer (myself) would be using on a daily basis. Right now, based upon the literature and dialog with sales representatives, but very little practical evaluation, I'm leaning to suggesting an all-Agilent factory, but am requesting everyone's input. Your thoughts would be greatly appreciated! Thank you, Lou DeSanzo.

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 27 November, 2006


Do a search and you'll find a lot of info as this question comes up all the time.

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 28 November, 2006


You should look at the ERSA/Modus AOI System! The Modus AOI uses a high resolution industrial scanner rather than a camera mounted to a gantry. It's way faster (12 seconds for whole board ) and can do everything that a camera can do and more! You can also have dual scanners to simultaniously inspect both sides of the board in one pass with a cycle time of 18 seconds. You can find more info on Modus by contact your local ERSA Representative or ERSA Directly at 920-893-3772.

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 28 November, 2006

Hi Lou,

If real process control and useful defect data is what you're looking for, Orbotech has some of the best tools available out there.

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John S.


AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 30 November, 2006

Lou, There's nothing like working with it yourself. We went through this exercise several months ago. We evaluated MIRTec, YESTech, and MVP.

We were looking at benchtop units, so all 3 companies were willing to send in a "demo" unit for 3 weeks. We had them train us and help program some boards. Then we ran them side by side. We conducted an Attribute MSA and characterised there probability to False Call and False Pass. I won't cloud the discussion with our decision, but there is no substitute if you can arrange it and spend time on it.

John S.

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 1 December, 2006

Hello Lou,

I agree with John S. There is no substitute for first hand experience.

I recently evaluated these machines among others for my company. I selected Mirtec based on ease of programming, inspection performance and Gage R&R testing. We are also a low to medium volume manufacturer.

Best of luck with your AOI project...


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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 1 December, 2006

Doing a head-to-head comparison is best. Use the same boards with the same defects to compare programming time, inspection speed, amount of inspection types you can program for and of course defect detection. Finding the defects that occur in your production environment is the most important in my view. And finding them consistantly of course. Run the same board over and over again on the machines to ensure you get consistant results, both with good boards and one with the defects. All machines will need a review after the inspection. Running the same board over and over again ensures that the same anomolies come up. Anomolies mean it found some suspect defects. Only a review will complete the inspection cycle. Compare how many of these you get with each machine you'ree evaluating. And the defect board is run over and over again gives the same result of defects found. That's your Gauge R&R. A machine that's low cost, easy to program and operate, but allows "escapes" is no bargin. An escape is a defect that the machine cannot find. Softare, lighting and camera technology vary from vendor to vendor. Good luck and have fun with it!

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 6 December, 2006

Just my two cents, but our findings were that the Yestech system was more in-line with our type of high mix, mid volume manufacturing. In my research, I found the Yestech to be the most favored for our applications, with most contract shops I talked to choosing them over other systems. The software was the easiest to work with and the service and support

There were aspects of other systems I liked, but in the end, we found Yestech to be the best fit for us.

As a plus, made in the USA holds a great deal of importance around our shop.

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 7 December, 2006

We have two YesTech machines. They are a great supplier and you should at least test thier machine and make the call based on what is best for you. I have also owned an Agilent machine and unless they have changed dramatically, I would not consider them in any case whatsoever unless you have more money than you know what to do with. The cost up-front is just the beginning.

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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 9 December, 2006

Hello Lou,

As a high-mix low-to-mid volume manufacturer, you will need to concentrate on equipment that may be progammed very easily, with very quick debug time from assembly to assembly. I have worked with Agilent in the past, and one of my colleagues worked with Omron. Both of these machines require extensive programming and debug time which makes them more suitable for higher volume applications.

When we did our equipment evaluation, we found that there were really only two vendors that were suitable for a hig-mix low-to-mid volulme application: Yestech and Mirtec. We brought both systems in for evaluation.

We found that the Yestech programmed very easily, but the debug process took longer than expected, and there were several defects that were not caught right up front. This was alarming. We also ran the same boards through the machine several times and kept getting inconsistent results. The biggest advantage with Yestech was the price. They are by far the most inexpensive machine out there, but the performance was not the best.

The Mirtec machine also programmed very easily. My team and I thought that the Mirtec machine, however, was more simple to operate especially when reviewing defects. The debug time was also much faster and the machine caught every one of our defects on the first pass, as well as a cracked component which my team was not aware of. Lastly, when we ran the same boards through the machine, we got consistent inspection results as advertised. Mirtec is more expensive, but we felt that it was well worth the money based on the performance of the equipment.

Needles to say, we selected Mirtec. We now have four machines and our production quality has improved dramatically. The standard SPC software package has been a great tool in helping us resolve many of our process issues.

Hope this helps...


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AOI: Agilent vs. Omron vs. MIRTec/YESTech? | 9 December, 2006

The company that I work for is a high-mix, mid-high volume manufacturer, and we also chose the YesTech AOI equipment. We currently have a YTV-2050 (the conveyorized machine with 5 cameras), and also the YTV-1000 (table-top version of the YTV-2050, with only one Top camera). The software itself it very simple to use, although to be honest, I have been finding some things missing that I really think should be there, or the functionalty of what is there is limited.

In specific, the company I work for has decided to keep all image sets of boards scanned in for QA purposes. Our customers are able to come back to us five years later with a returned product from the field, and we are able to tell them exactly what defects were found on the board, what was reworked, and are also able to re-inspect it if need be. Unfortunately, backing up image sets to certain locations has been either troublesome of impossible to do in the fashion at which I wanted to do it. Also, the CAD utlity that is included (written in Excel VBA), is a bit primitive, and doesn't always work out for us.

For these reasons, I have written some software to aid myself in backing-up image sets, inspection recipes, and also to generate the CAD data to use for importing to the YesTech machines.

As far as SPC data-logging goes. YesTech does really well with the data that they log, but the data analysis software that is included with the .mdb file I also found to be primitive. Once again, I have written another piece of software to aid in generating quality data reports.

In my opinion, the YesTech line of machines is not a bad choice, and if you'd like, shoot me an email and I can send you some software to piggy-back the YesTech machines.

I do freelance software development, and will customize applications to fit your facility if needed. I don't charge for the software if it's easy enough (and most of it is). Email me at for more information, you've got nothing to lose. That goes for everyone here.

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