Oh Lord! Another technology seminar.
posted on
Sep 15, 2014 08:55AM
As it's the late morning in our Indian summer here in the UK, and my brain's immersed in sufficient Caffeine to write on this forum, I thought you would be overwhelmed with desire to understand the descriptions of p and n channel gates that you will come across in the forum contributions: well p means positive and n means negative. See, easy.
You see some semiconductor materials have free electrons in their outer orbits and under the right conditions these can stop and start when under the influence of a voltage difference controlled by a gate. If the electrons move they cause a measureable current and the gate can stop or start them hence off/on; off/on - binary code - brilliant, beautiful, bountiful.
But, semiconductor materials can be modified by the addition of other materials which alter their molecular arrangement. Instead of free electrons, they are absent, sought of absorbed in the additional material (sometimes known as doping). This shortage of electrons creates a relatively positive area which also moves under the influence of a current induced by a gate. So you can have negative areas or you can create positive areas which move. This can be achieved in Gallium Arsenide by the addition of Indium (also a 111-V element; look up the Periodic Table on the internet and you can see it in the same column as Gallium); it has even more free electrons. You will see some of the forum communications issuing figures that indicate the freedom of movement of various substances per square area, which indicates their suitability as a semiconductor.
In the end, accept that PTK has an arrangement that improves very significantly on Silicon semiconductors. I believe that at this moment Silicon is becoming more and more expensive to improve as a substrate for a microprocessor chip that POET has the only developed technology that can replace it and improve processing speed at low power.
All this is about to happen. Look at the number of articles expressing concern about Silicon's difficulty and the expense of improvement. Look at the number of people thrashing about grasping at straws in the wind, such as graphene, or modifications to Silicon. Think that, in the next 6 months, they will or have been offered a solution that is easy to fabricate, cheap to build, open to huge improvement and modification and with the ability to integrate simply not possible with Silicon. Above all ask why a company such as Synopsys who will write the programmes for design and manufacture of the processors and are said to be "chockabloc" with work take on a tiny company's design to work on at once. Why a man of the renown of Ajit Manocha would remotely bother with a tiny company with an idea they can make faster chips unless it is so.
Also, understand that this technology cannot be knocked up by others over the next few years and although it could be copied in time cannot be marketed under patent laws. You will see that there are no immediate competitors to POET and, if so, imagine the alteration in perspective as the reality dawns on smaller chip manufacturers as they see their way forward to faster and faster processing. Remember, it is all about to happen.
David