The cutoff frequency increases to 427 GHz with 1.1V applied across 67-nm transistor of higher-quality peeled graphene–the highest frequency for such a transistor.

The 8HP silicon-germanium (SiGe) process doubles its predecessor's performance. This IBM development utilizes 130-nm design rules to achieve a top transistor cutoff frequency ...

Scientists at IBM have published a paper that demonstrates a radio-frequency graphene transistor with the highest cut-off frequency achieved so far using graphene.

But now a group of scientists at UCLA has demonstrated transistors with a cut off frequency of 300GHz, comparable to the top end of more traditional materials such as gallium arsenide or indium ...

Specifically, IBM said today that its scientists have fabricated nanoscale graphene field-effect transistors and demonstrated the operation of graphene transistors at the GHz frequency range, ...