NovAccess Global Inc (XSNX)

[Q-reus]

FWIW: XsunX Business and Technology Update Newsletter

Aliso Viejo, CA- Nov 7, 2011


Good morning,
In this newsletter we are providing an update to progress with the build of our multi-chamber CIGS evaporator - a topic we receive inquiries about regularly.

First we will provide a little background on how we are approaching the build. Instead of using a single source vendor to build and provide a turn-key package, we elected to divide various aspects and component groups of the system between multiple qualified vendors. The components would then be delivered to us for final assembly. The benefit to this approach is that it allows us to more closely control or make improvements to our designs, the fabrication, and costs at the point of supply.

Working in this manner with vendors, we were able to integrate what we believe to be substantial improvements to our backside substrate heater and material transport system. Each of these components needs to perform specific tasks very accurately, and at the same time everything in a system periodically needs to be serviced. So we devised an integrated assembly that can deliver the performance we demand and can be removed, replaced, or serviced as a package that simply and easily slides in or out of the system. We believe that this particular feature will make the tool easier to service in a commercial environment, and help to reduce operating costs.

Another area where we believe that vendor collaboration has helped was with modifications to the main processing chamber. This modified design greatly reduced the cost for the main chamber while simultaneously allowing us to continue to create the same multiple processing environments as we had originally developed. The change also opened the system up to allow for rapid and inexpensive modifications to individual chambers that will enable us to continue to improve process specifications in the future.

Progress is also occurring with our patent-pending evaporation crucible and heater assembly with the delivery of core components several weeks back. For those not familiar with what a crucible is: imagine a small pot with a lid and small hole that allows steam to escape This is a simple concept, but tremendously complicated when you are heating copper to over 1,400 degrees Celsius and must maintain the exact amount of energy in your vapor to produce the ideal film uniformity on your solar cell.

One of the significant design benefits of our crucible system, and a patent claim, is the ability to apply adjustments to the location of the crucibles in the system. Typically you have to re-machine major components to accomplish this task- if at all. The reason we developed this feature was to allow our system to adapt new process techniques for system and conversion efficiency improvements - an important business goal for our technology licensing model. Using this feature, we slightly increased the size of the chamber assembly allowing us to test adjustments to the source location that we believe may allow us to increase system throughput by as much as 50%. We are excited about this potential.

As you can see from some of our comments above, we have benefited from introducing what we believe will be significant improvements to various aspects of the system and we will provide more detailed information as progress continues.

Thanks for your time and interest.

Have a great week,

The XsunX Team



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