bobriciusFinally I found SRI INTERNATIONAL patent with description https://patents.google.com/patent/US8593016B2/en
My solution is little different, I am using another pattern for movements also my design is 3 phases uni-polar against they 4 phases bi-polar design. They design is very energy effective because they have levitating manipulators over
pyrolytic graphite.
I searching samples of pyrolytic graphite.sheets, but without success now.
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The best source for pyrolytic graphite I have found is here. https://www.kjmagnetics.com/proddetail.asp?prod=PG5
You can split it to the thickness that you want. I also tried reproducing the SRI setup but had trouble with the magnets. I got 0.25mm thick "N52" magnets (5x5mm) but couldn't get them to levitate. I still need to break them down to the size used in the paper and try again.
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Yes, I asked Panasonic for samples, but they can not help. SRI use 0,5mm thick foil. Panasonic have 0,1mm max.
OK. is time tonight solder mosfets and test automatic movements :) and next I need order 0.6mm pcb board, on 0.8mm board bottom traces have very weak movements.
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https://www.mouser.com/search/refine.aspx?Ntk=P_MarCom&Ntt=135626005
Sold as thermal interface sheets, but they may also have the desired magnetic properties
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