A Super Super Rare 1960's Space Race Semi-metals 1.25 inch Blank Silicon Wafer, polished front and semi dull back of wafer, P - Type NOS, RARE ! Film Resis. 8 to 12 ohm, Film Thick 11 - 12 um, New OLD Stock, mint condition! These were used to make Jfets, diodes and transistors.  I have a limited stock on these Rare wafers..

Applications

P-type silicon wafers are used in: