PCB焊盘设计PCB Standards Land Pattern Description WIND RIVER 9/5/2002 PCB Standards Library Specification Padstacks - Through Hole and Connector Libraries 1. See Padstacks.pdf Excel spreadsheet for Plated & Non-plated sizes 2. Padstack Features: a. b. c. d. e. Full padstacks include Solder Mask and Assembly data Hole size is 0.3mm larger than lead size All hole sizes are in increments of 0.05mm Pad sizes are gradually scaled up to establish correct current carrying capability Split/Mixed Anti-pad & Custom Thermals are defined on “Inner Layers” 3. Non-plated holes have a keepout on All Layers 0.6mm greater than hole size 4. Minimum of 0.30mm space between pads Padstacks ……