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Opto System Laser Diode Chip Tester VMS3200

Highlights of the OptoSystem Laser Diode Chip Tester VMS3200


Full Automatic Testing.

Laser chips are automatically tested for multiple parameters and sorted according to the results.

Double Temperature Measuring Capability.

2x Temperature controlled chucks 20..90°C. Lower T optional. PI curve, IV, Spectrum precise and fast speed measurements.

Down To Just 150µm Chip Size.

Reliably handling of even very small lateral dimensions of just 150µm x 200µm or larger.

Full Automatic Measurement For Laser Chips At Two Controlled Temperatures

Description of the Opto System Laser Diode Chip Tester VMS3200

Knowing the behavior of your chips at the actual application temperature can be hard to achieve in a fast speed manufacturing environment. This full automatic tool from Opto System is a masterpiece in integration of machine vision, testing equipment and chip handling know-how. Although it is used for edge emitter laser diodes, it can be custom built for other types of semiconductor chips as well that need efficient testing at different temperatures. The tool automatically picks up the chip from your tape, places it on the first temperature-controlled chuck and performs a full electro-optical characterization before moving it forward to the second chuck where the same set of measurements is performed at a different temperature up to 90°C. As an option, if both temperatures are the same, the measurements can be split between both chucks considerably increasing the throughput. The measurements include the integral light output power, the spectrum and the electrical properties. You may even set an electron-absorbtion-modulator (EAM) voltage as well for data communication laser types. According to the specified criteria, the laser chips are sorted in different GelPaks or Rings. This means you can offer your chips specified at the application temperature because you have tested it.


Is it possible to handle larger frames?

The VMS3100 chip tester is designed with a supply table that handles 5 inch diameter rings or frames with 175mm inside diameter where to pick up from, but we are happy to discuss a customization for larger frames. Opto System’s tools are often a custom-made design and the we are happy to discuss with you your requirements.

Why is the testing equipment optional?

You may want to use the equipment you are used to work with. We would be happy to either propose an optional testing equipment package or work with you to integrate the testing equipment that you provide us from a third party.

I actually only need to measure the chips at one temperature.

The VMS3200 chip tester is designed with two chucks to measure the same chip twice at two different temperatures but the two chucks are also useful to work in parallel sharing the work of the measurements and hence almost doubling the throughput. For a simpler machine with just one temperature chuck please check our WMS3100. OptoSystem’s tools are often a custom-made design and the we are happy to discuss with you your requirements.

Can I measure more than two different temperatures?

The VMS3200 is designed for only two different temperatures but you should check out the VMS3300 for a tool design with three different chucks that can be set at three different temperatures. If your volume is small and this is not something that would happen every time, you can of course re-run the measurement several times with different temperature settings. The temperature adjustment of the measurement chuck is not designed for quick temperature changes and it is not advisable to change the temperature while measuring but only between measurement lots. If you have a lot of volume and will regularly need three or more temperature testing, we recommend to use the option of having as many measurement chucks in a single tool as different temperatures that you need to measure. We will take care of the transfer of the laser bars from one chuck to the other. OptoSystem has delivered testing machines with as many as 5 chucks until now!

Why Opto System?

Opto System’s tools are built to last and very robust with a focus on performance and quality. Opto System has been around for for more than 40 years and has earned a reputation for excellent tools in the semiconductor industry across the world.

Who or What is Tomosemi?

TomoSemi is a manufacturer’s representative appointed by Opto System to promote Opto System’s products and to help customers in Europe since we are local.


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