#452 How to connect the substrate contact of HBT NPN to substrate? Issue created by EngGhaith I have this very simple NPN: [Image](https://private-user-images.githubusercontent.com/178785944/433760579-b441ad12-9393-49c0-8837-0cabbeae3d69.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3NDQ3NDIyNjQsIm5iZiI6MTc0NDc0MTk2NCwicGF0aCI6Ii8xNzg3ODU5NDQvNDMzNzYwNTc5LWI0NDFhZDEyLTkzOTMtNDljMC04ODM3LTBjYWJiZWFlM2Q2OS5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjUwNDE1JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI1MDQxNVQxODMyNDRaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT1iMzBhYzc2NTQ2Y2UzMGFmMzlmYjBkOTM1Zjg3ZjBkN2Y2MTUwN2FlNjM3YmEwYzY3OTQ3YjYxN2VhNjY4NDI4JlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCJ9.BM1XuP3WFz0LIxY-z1Dgx8OXaIul4ypahVwjl-dxjfA) And I have this in the LVS: [Image](https://private-user-images.githubusercontent.com/178785944/433761104-6fbf80ce-d3f8-4521-9da9-ff0c12146ad9.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3NDQ3NDIyNjQsIm5iZiI6MTc0NDc0MTk2NCwicGF0aCI6Ii8xNzg3ODU5NDQvNDMzNzYxMTA0LTZmYmY4MGNlLWQzZjgtNDUyMS05ZGE5LWZmMGMxMjE0NmFkOS5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjUwNDE1JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI1MDQxNVQxODMyNDRaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT02NWRhZjRiM2M5YjAwMmEyOTU0YjRkZDQwNDZlNTllN2Q3MzU4NWQ2MTNlZDBiNTcyZWEyN2MwNDA3MWMyZjEwJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCJ9.Gr47VsVrHd-En4g-xd0bX3C9GOyk2fZKDaYJzLjOfNs) In Xschem it is connected like that: [Image](https://private-user-images.githubusercontent.com/178785944/433761616-d406f74e-88fb-4e89-8e65-d2d53d2113cc.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3NDQ3NDIyNjQsIm5iZiI6MTc0NDc0MTk2NCwicGF0aCI6Ii8xNzg3ODU5NDQvNDMzNzYxNjE2LWQ0MDZmNzRlLTg4ZmItNGU4OS04ZTY1LWQyZDUzZDIxMTNjYy5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjUwNDE1JTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI1MDQxNVQxODMyNDRaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT01YTJiYjg3OGExZjAxOWM3MzdlYWMwMmRiMjcyMTUyNDExZjQxZmJiNmRlYTI5YzBhMmJiYjdmMWEwOTkyNjZkJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCJ9.eUpppJekEDg3-HXw-gVkyMTcfTWzVRoOnSboqz84j5Q) Thank you very much. Ghaith Al Sabagh. IHP-GmbH/IHP-Open-PDK