Sierra Circuits | Press Release

Press Release on 07/08/2011

Sierra Circuits Demonstrates HDI Stackup Planner at Semicon West 2011

Latest version of tool increases customer flexibility and stackup options

Sunnyvale, CA June 16, 2011

Sierra Circuits, the leader in QuickTurn HDI PCBs, has announced that it will be demonstrating the latest version of its HDI Stackup Planner software at the Semicon West trade show at the Moscone Center in San Francisco later this month. The complete show information follows:

Date Location Booth Number Exhibit Hours

July 12-14, 2011

Moscone Center, 747 Howard Street, San Francisco


Tuesday, July 12, 10:00 A.M. - 5:00 P.M.

Wednesday, July 13, 10:00 A.M. - 5:00 P.M.

Thursday, July 14, 10:00 A.M. - 5:00 P.M.

New Features of Latest Version of HDI Stackup Planner Tool

The HDI Stackup Planner tool encodes the best practices for HDI manufacturing so that by answering a few simple questions about your design, the tool presents precise options for cost-optimized stackup structures.

Customers can easily get cost-optimized designs simply by answering a few key questions. This latest version of the tool provides customers more flexibility by constructing a much larger set of stackup options to meet their specific design requirements.

For example, this version provides customers the option of not specifying their BGA, and instead specifying the Signal and Plane layers.  Also, customers can request stackups of a certain thickness as well as material type.  The thickness and material affect the trace values needed to achieve standard controlled impedances, and these are calculated accordingly by the Stackup Planner.  The increased flexibility benefits customers by providing the best stackup that meets their design needs in the most cost-optimal manner with guaranteed manufacturability.  The tool also supports a new Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) process recently implemented by the company.

The HDI Stackup Planner Tool is available free online at

About Sierra Circuits

Sierra Circuits is an ISO 9001:2015, ISO 13485:2016 and Milspec MIL-PRF-55110 certified Printed Circuit Board manufacturer specializing in HDI, fine line and flex technologies with a focus on quick-turn prototypes and medium production.  Our capabilities include multi-layer and fine line processing as well as blind/buried, filled, and micro vias. In addition, we provide PCB Layout and PCB Assembly services.  For more information please visit


Amit Bahl

Marketing Director

Sierra Circuits, Inc.

(408) 523-9922

Andrea Vedanayagam

Veda Communications

(408) 656-4494