updated 3:39 PM UTC, Oct 12, 2021

MPW 25th Call on 220nm SOI - DEADLINE PASSED

CORNERSTONE users are invited to submit designs to the twenty-fifth call with a platform of 220nm SOI (passive devices with heaters).

The process is shown in the animation below: 

A process design kit (PDK) is available using Luceda’s IPKISS software, subject to purchasing the appropriate license. To obtain a copy of the software and a license key, please contact Luceda by sending an email to This email address is being protected from spambots. You need JavaScript enabled to view it., specifying that you require a license for CORNERSTONE PDK usage. Of course, the CORNERSTONE PDK is free of charge if you already have a valid IPKISS license.  

Access to this run is charged with the following cost options:

Design Area Cost with heaters Cost without heaters
11.47 mm x 4.9 mm £11,650 £6,750
5.5 mm x 4.9 mm £8,000 £4,250


The sign-up deadline is Friday 27th August 2021. The mask submission deadline is Friday 24th September 2021.

For more information, full design rules and quick reference design rules, please download the CORNERSTONE 25th Call Design Rules documents and the .GDSII template files.

In order to help you ensure that you comply with the design rules, you can also download a design rule check (DRC) checklist and if you have access to Tanner L-Edit software, a .tdb version of the template containing a DRC file that you can run to automatically find any design rule violations (note that the automatic DRC will not check all of the design rules, so it remains very important to read the design rules in detail).

For any queries, including questions on bespoke processing i.e. custom etch depths etc., please contact This email address is being protected from spambots. You need JavaScript enabled to view it.

MPW sign up form