Designing graphene into transparent and lightweight speakers Research 7/27/2011 5 comments Researchers Jyongsik Jang and coworkers from Seoul National University have used inkjet printing and vapour deposition to deposit graphene oxide onto poly(vinylidene fluoride) (PVDF), which is then reduced to create a graphene film. This demonstrates not only a new method for making controlled graphene films, but also a new use for the material: for making a thin transparent loudspeaker.
Baolab creates ultra-low cost 3D digital MEMS compasses in CMOS Product News 7/6/2011 2 comments The BLBC3-D NanoCompass from Baolab Microsystems is the first product that will be made using the company's NanoEMS technology, which enables nanoscale MEMS (Micro Electro Mechanical Systems) to be built using standard high-volume CMOS lines and to be fully integrated monolithically with the analogue and digital electronics.
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments