00198565- 01_Operation_Manual_DEK_Micron_EN.pdf - 第43页
Identify common print defects - 43 www.dek.com Demonstration ⃞ Shown below are some common solder print defects. Suggest some common operational causes of these defects Bridging Causes: Incomplete
Identify common print defects -
42
www.dek.com
Good alignment
No gaps between board and stencil
Good board support
Good stencil support (Proflow)
Good stencil (good design, undamaged, clean)
Good material (condition, temp, etc)
Correct parameter settings (match process design)
Identify common print defects -
43
www.dek.com
Demonstration
⃞ Shown below are some common solder print defects. Suggest some common operational causes of these defects
Bridging
Causes:
Incomplete
Identify common print defects -
44
www.dek.com
Causes
Missing edge