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SMTnet Express - May 21, 2015

SMT Express, Volume 2, Issue No. 4 - from SMTnet.com

Microsoft Word - Footprint Expert Surface Mount Families

PCB Libraries, Inc. | http://www.pcblibraries.com/Products/FPX/UserGuide/download/Footprint%20Expert%20Surface%20Mount%20Families.pdf

, 0705 & 0805    Length > 1.30 and <= 2.85 mm    0.20  0.00  ‐0.05  0.10  0402, 0306 & 0502    Length > 0.75 and <= 1.30 mm    0.15  ‐0.02  ‐0.02  0.10  0201    Length > 0.50 and <= 0.75 mm    0.08  ‐0.03  ‐0.03  0.10  01005 & Less    Length <= 0.50 mm

PCB Libraries, Inc.

: •  Properly prepared materials •  Properly designed materials •  Fluxes •  Solder •  Heat •  Metallurgical bond 6 Wetting Angles 7 θ θ = Dihedral Angle γ = Forces of the surface energies

| https://www.eptac.com/wp-content/uploads/2013/04/eptac_05_22_13.pdf