Issue link: https://resources.pcb.cadence.com/i/1541046
29. Eliminating Stubs and Dead-End Tees Stubs - dangling sections of trace not directly part of a signal's intended path; act as small transmission lines that reflect signal energy, distort fast edges, and degrade signal integrity, especially for high-speed or clock signals. Even short stubs can cause impedance mismatches and create resonance, leading to overshoot, ringing, reduced noise margins, and data errors. Teed traces ("T" junctions) or leftover copper from test pads, branch points, or unused vias are frequent sources of these problems. When And Where To Apply Apply stub elimination techniques to all high- speed nets (clocks, data buses, differential pairs), precision analog, and any signal where low-noise or clean transitions are required. It's essential in DDR, USB, PCIe, Ethernet, and RF layouts, as well as sensitive analog measurement circuits. A via stub is the unused part of a via and does not connect any layers, and does not have any useful function