Submitting CAD Files
There are two preferred methods of transmitting your CAD files to us for e-beam exposures. Emailing of files is NOT preferred or recommended.
CAD files should be in industry-standard GDS-II data format, if at all possible. Other formats may be possible, but please contact me first; see 'Contact Me' link at the bottom of this page. Also check out this discussion of possible CAD formats.
For all CAD file submissions, please also provide the following vital information:
- Top Cell Name - which cell is the top cell of your data hierarchy
- Layer Map - what data is on which GDS-II data layer, which layers are to be exposed
1) File submission via Web Upload
2) File submission via Secure File Transfer Protocol (SFTP).
Another method to transmit CAD files is via a Secure File Transfer Protocol (SFTP) or Secure File Copy (SCP) upload. For this, there is a secure, write-only SFTP & SCP dropbox. These methods are sometimes preferred by Unix & Linux users for their command-line simplicity and efficiency. There are also some friendly GUI interfaces or both Windows and Mac users which allow you to easily utilize the SFTP protocol. Examples include Cyberduck, for both Mac and Windows, and WinSCP for Windows.
The relevant details are:
Address: ebeam.wnf.uw.edu
Username: dropbox
Password: < to ask for the SFTP/SCP password, email me (see Contact Me in the page footer below) >
a) SFTP Example upload via command-line SFTP:
[ Your input in Courier typeface, computer responses in Verdana typeface. ]
> sftp dropbox@ebeam.wnf.uw.edu Connecting to ebeam.wnf.uw.edu... EBeam Data Computer. Warning: This is a private computer. Unauthorized access or use is prohibited and subject to prosecution and other nasty things. dropbox@ebeam.mff.uw.edu's password: < enter password, see above > sftp> put yourfilename.gds Uploading yourfilename.gds to /home/dropbox/yourfilename.gds yourfilename.gds 100% 142KB 70.8KB/s 00:02 sftp> ls Couldn't get handle: Permission denied sftp> quit |
Note that the "ls" is shown here only to demonstrate that this dropbox is WRITE-ONLY -- neither you nor anyone else can see your file once it has been uploaded. Therefore you will always get an error if you try to get a directory listing of the dropbox.
b) SCP Example upload via command-line SCP:
[ Your input in Courier typeface, computer responses in Verdana typeface. ]
> scp yourfilename.gds dropbox@ebeam.wnf.uw.edu dropbox@ebeam.mff.uw.edu's password: < enter password, see above > > |
c) SFTP Example via Cyberduck SFTP GUI Interface:
Important: With the WRITE-ONLY dropbox setup, you will always get an error message when using Cyberduck, because the program is trying to show you the files in the dropbox, but it does not have permission to read these files (no one does!). See the example below for what this looks like:
1) Open a new SFTP session in Cyberduck. Be sure to choose the SFTP protocol from the drop-down menu at the top!
Once successfully connected, again, you will see this error message, because you do not have permission to see the files in the dropbox:
Go ahead and click "Try Again", and you will get a blank window such as this:
From here, either drag-n-drop your CAD file onto the window area, or choose "Upload" from the Action menu. In either case, when your file has finished uploading, once again, you will get the same error message:
Again, this is an expected error, because you do not have permission to see the files in the dropbox. Email me if you need confirmation that your file was successfully uploaded.