The types of SiP Module footprints

•By the shapes of soldering points
–Land Patterns
–Ball Patterns
•By the configurations of soldering points
–Lines
•Dual-in-line
•Irregular or Asymmetrical Lines (minimal requirement of balance in structure is needed)
–Perimeter
•Single Row Perimeter
•Double Row Perimeter
•Irregular or Asymmetrical Perimeter (minimal requirement of balance in structure is needed)
–Array
•Grid Array
•Irregular or Asymmetrical Arrays (minimal requirement of balance in structure is needed)