Sunday, November 12, 2006

Startup demos 10Gbit/s chip-to-chip innovation

Startup Banpil Photonics, Inc. said today it has demonstrated a way to send 10Gbits/second signals 1.5 meters across a standard pc-board without using power-hogging pre-emphasis or equalization to amplify the signal. Its secret sauce appears to be a technique to dig a passage through the board and send the signals as radio waves.

A February patent application by Banpil chief executive Achyut Dutta describes a method for creating an open trench or slot as part of a single- or multi-layer dielectric system to reduce microwave signal loss.

A "large portion of the signal (electromagnetic wave) is allowed to pass through the air or dielectric material having the dielectric loss less than the base dielectric material itself," the application states. "The trench or back-slot of the dielectric system can be filled with air or kept in vacuum. Alternatively the trench…can be filled with the liquid crystal material, which can tune the dielectric constant and loss," said the patent application.

Banpil has also cobbled together some proprietary tools. Banpil has created a unique RF simulation, layout and modeling tool chain based on two tools from unnamed EDA vendors and a tool designed in house.

"To let others do these designs, we will need to get a Cadence or Mentor to make these tools," said Dutta, who has started talks with two unnamed companies about creating such tools. --rbm

1 comment:

Anonymous said...

The description of "10Gbit/s across 1.5m in FR4" seems to indicate that the start-up company created either a micro-strip surface trace configuration for this high data-rate transmission or the company created a transmit and receive antenna pair to radiate (or broadcast) the signal across the 1.5m distance. Can Mr. Merritt provide a little more detail to this setup? Thanks.