Manufacturing Bits: Oct. 11


Space elevators Last year, Pennsylvania State University disclosed a technology called benzene-derived carbon nanothreads or sometimes called diamond nanothreads (DNTs). DNTs resemble carbon nanotubes. They are tiny hollow cylindrical tubes that are stronger than steel, but they are also brittle. Basically, DNTs are 1D structures with poly-benzene sections, which are connected by Stone–Wa... » read more

The List Of Unknowns Grows After Silicon


As discussed earlier in this series, most proposed alternative channel schemes depend on germanium channels for pMOS transistors, and InGaAs channels for nMOS transistors. Of the two materials, InGaAs poses by far the more difficult integration challenges. Germanium has been present in advanced silicon CMOS fabs for several technology generations, having been introduced used in strained silicon... » read more

Tunnel FETs Emerge In Scaling Race


Traditional CMOS scaling will continue for the foreseeable future, possibly to the 5nm node and perhaps beyond, according to many chipmakers. In fact, chipmakers already are plotting out a path toward the 5nm node, but needless to say, the industry faces a multitude of challenges along the road. Presently, the leading transistor candidates for 5nm are the usual suspects—III-V finFETs; gate... » read more