Sierra Circuits, a PCB Manufacturer at DesignCon 2011 Sierra Circuits, a printed circuit board manufacturer is hosting a technical symposium at DesignCon 2011. To optimize your PCB design and to save costs, meet our experts at Booth no. 732 at DesignCon 2011 in between January 31 to February 3, 2011. For more information check the link http://www.protoexpress.com/DESIGNCON