https://www.synopsys.com/glossary/what-is-custom-ic.html
What is a Custom IC (Integrated Circuit)? | Synopsys
A custom integrated circuit (IC) is sometimes called a full-custom IC. To understand the specific requirements of this type of IC design, we first look at the...
what is acustom icintegrated circuitsynopsys
https://www.siemens.com/en-us/products/ic/ic-custom/ams/l-edit-ic/
Custom IC Layout | Siemens
Custom IC schematic driven layout for analog mixed signal design built on standards, OpenAccess, iPDK and TCL.
custom iclayoutsiemens