Additional Resources
Here are a few places you’ll find further information about CAD and Design:
KLayout itself can be found here: http://www.klayout.de/
Some useful user documentation is found here:
There’s a lot of very useful information in the Editor QuickStart Manual: http://www.klayout.de/editor.html which will be helpful to you as you get more familiar with KLayout. I’d recommend that you scan through this as you are learning. Another online page with further information is http://www.klayout.de/short_um.html.
There’s some useful general information about designing, especially making masks for contact photolithography here:
From the Stanford Nanofabrication Facility: https://snf.stanford.edu/SNF/processes/process-modules/photolithography/maskmaking In particular, the “Contact Mask Design Principles” and “Photomask Basics” at this page provide a wealth of useful design details.
From the Cornell Nanofabrication Facility: http://www.cnf.cornell.edu/cnf_process_mask_patternprep.html provide useful information, especially for contact lithography mask plates, and this page provides some details about alignment marks for contact lithography systems: http://www.cnf.cornell.edu/cnf5_alignmentKey.html, including some design files you can download.