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20090528 Basic Features

by anonymous - 3 Jun 2009, 22:54 CEST

I'm using the Basic Features version and the paths I create don't have the default width in Setup (They're all 0 width). Also, I can't find the Properties button anywhere nor a Properties menu item. Is this behavior normal?

Glenn

by Juergen Thies - 4 Jun 2009, 9:07 CEST

The defaults in the setup dialog had to be entered in databaseunits. So small values may appear as zero width in the design. Enter higher values (e.g. 10000 for a 10µm path with the default units) to get a visible width.

I will change the entry with the next release to userunits.

The Properties feature requires the reduced version of the LayoutEditor.

by anonymous - 4 Jun 2009, 16:17 CEST

Thanks. Increasing the width to 10000 made it visible. I had assumed that the width units were the same as the placement units.

Are the version capabilities shown on the "license" web page up to date? The ruler function is not shown there for the Basic version, but it seems to work for my (Basic) installation.

Glenn

by Juergen Thies - 4 Jun 2009, 16:40 CEST

You are right, the ruler is available in the basic version. I will fix the list.
The list on the "license" web page is compressed. Not all feature are listed. But any listed feature should be listed in the correct section.

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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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