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Netlist format for DesignWorks

by anonymous - 29 Apr 2009, 20:53 CEST

Hello,

I am a DesignWorks user for schematic capture. Have you developed a compatible netlist format with the guys at Capilano? I would be most happy to try it out and give some feedback.

John Fisher

by Juergen Thies - 29 Apr 2009, 21:42 CEST

The PADS, Spice and Allegro netlist format are compatible with Capilano DesignWorks and have been tested. The best netlist choice in that case is using the export scripts shipped with the LayoutEditor: "DesignWorks-Spice-hierarchical.rfm" for hierarchical designs and "DesignWorks-PADSpcb-withPackage.rfm" for flat design. Both scripts are located in the folder "library/pcb"

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The LayoutEditor™ is a program to design and edit layouts for MEMS/IC fabrication and CMOS IC design .Designing these layouts require a high precision. In IC design a sufficient resolution and a possibility of a high scaling is required. The resolution of the LayoutEditor can be set in a wide range and is normally set to 1 nano meter. A higher resolution makes no sense due to atomar structures. With this resolution the LayoutEditor can draw elements up to 4 meters. In many IC design houses this is enough for IC/MEMS which extend usually less than 0.1 meters. The productions of MEMS/IC is done in many layers. For each of these physical CAD layers a belonging layer had to exist in the drawing. Additional logical layers are required for describing/naming purpose. So a lot of layers are needed. By default the LayoutEditor is limited to 128 layers. But it can easily be adjusted, if more layers are required. IC Designs often contain a plenty of repeating structures. Essential for micro fabrication of these designs is therefor a hierarchical design. This means, that the complete repeating structure only exists once in a single cell. These cell is then referred multiple times in the main drawing.
Beside the above mems packaging mentioned IC design fundaments it is important to have sophisticated functions to handle all drawing elements. The layout handler has all required functions: all basic design functions, all angle elements, boolean operations, macros, fontgenerator, design rule checker, mems tools, supported format: GDSII, DXF, OASIS, CIF. If you still missing a function, you are free to write a feature request

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