https://www.google.ru/url?sa=i&url=https%3A%2F%2Falphaassembly.com%2F-%2Fmedia%2FFiles%2FCooksonElectronics%2FTP-Stencil-Desn-for-L-F-SMT2004-CNP-WWE-SM000--04-02-11.pdf&psig=AOvVaw2zEvJVtxabEAiHKvWFeeMj&ust=1629658223787000&source=images&cd=vfe&ved=0CAsQjhxqFwoTCIC52anxwvICFQAAAAAdAAAAABAD
https://metallicresources.com/wp-content/uploads/2017/02/n3.pdf
https://www.pcb-hero.com/blogs/news/cause-analysis-of-smd-tombstone-troubleshooting-in-smt-assembly