Advanced Imaging


Advanced Imaging Magazine

Updated: January 12th, 2011 10:01 AM CDT

Speed Thrills

Accelerated simulations add to cell phone safety and efficiency
mobile phone simulation
© Acceleware
Mobile phone companies use simulations to test for Specific Absorption Rate (SAR) of RF energy that, according to the FCC, must not exceed 1.6 W/kg in the head of a cell phone user.
multicore computers chart
© Acceleware
By using multicore computers with multiple GPUs, the simulations run at a minimum 10 times faster, with some products increasing as much as 35 percent.

By Barry Hochfelder

New Solution Increases Optoelectronic Simulation Speed

Acceleware and Synopsys unveiled a new hardware solution in January at Photonics West in San Jose, Calif. Their solution enables up to 20 times faster electromagnetic simulation of optoelectronic devices such as CMOS sensors.

It links Synopsys' TCAD Sentaurustm Device simulation software with Acceleware's ClusterInABox Quad Q30 workstation and enables an order-of-magnitude speed-up of the high accuracy finite-difference time-domain (FDTD) electromagnetic modeling algorithm used in the Sentaurus Device. The performance in allows engineers to leverage the rigor and accuracy of the FDTD method in designing and optimizing optoelectronic devices while shortening the product development cycle.

CMOS sensors which, of course, are used in camera phones, webcams, digital cameras and camcorders, now have to pack more pixels into each device, as well as be cost-effective to produce. These tools perform over a wide range of light incidence angles, lens shapes, pixel sizes and other factors.

FDTD simulations typically require tens of hours to fully characterize a CMOS sensor design in 3D. The new hardware solution reduces the FDTD simulation time by as much as 20 times, allowing engineers to carry out more extensive simulations studies.

The solution also includes built-in NVIDIA GPUs, which deliver up to two teraflops of computational power, which also significantly accelerates FDTD simulations of optoelectronic devices.

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