Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Keep out margin: is usually given to specific cells, mostly for enabling pin access. We know, router will find it difficult to route if number of access points of a particular pin is less than 3. In advanced nodes, the number of access points is reduced to 1. In such situations, we give keep out margin to avoid other cell's pin getting close to it. You can also give keep out margin if your block is congestion prone and a particular cell's pin has very less access points.
Blockage: is given for various reasons. It means, no cell can occupy a particular region specified by the user.
Difference: Keep-out margin is similar to blockage but it is given only in places where the problem prone cells are present. The tool identifies the cell's location by itself and draws the blockage.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
