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TIP #040: Use the chip manufacturer support as few as possible
Why? In most cases, they will not help you.
TIP #039: Be careful how you order pins on your connectors
Why? For example, you may want GND/PWR separate CLK signal from the others, it helps minimize crosstalk between signals on a cable. You may want to consider how currents will flow. You may want to prevent board damage when the mating connector is inserted the other way round
TIP #038: Place fiducials in the PCB corners and on the side where SMD components are fitted
Why? Assembly house uses them.
TIP #037: Use “.Checked PCB” “.Checked SCH” as component parameters
Why? Helps you to identify symbols and footprints which you need to check, helps to speed up schematic drawing process
TIP #036: Buy a good mouse
Why? When doing schematic and layout for weeks / months / years and moving your hand all the time, you really need a good mouse. Otherwise, sooner or later, your hand is going to hurt.
TIP #035: Use ferrite beads or 0R resistors on powers
Why? It helps with power noise filtering, easy to measure currents, circuit can be disconnected, …
TIP #034: Have a look at what your competition is using
Why? In some cases you may want to use exactly the same components because of software / hardware compatibility. It may also help to prevent possible problems (there may be a reason why they chose particular chips).
TIP #033: If you can, try using leaded tin when repairing during debugging or testing
Why? It melts at lower temperature and behaves better than un-leaded tin
TIP #032: Always do testing in environmental chamber
Why? It helps you to find possible problems before mass production
TIP #031: Include page number in Schematic page name
Why? It helps you quickly jump to the right page
TIP #030: Do Paper model of your board
It’s a simple way to check if everything fits correctly and if everything is in the right place.
TIP #029: Be sure you connect enough pins on connector to carry high currents
Why? Connector pins only can carry limited current.