Void Reduction in Bottom Terminated Components Using Vacuum Assisted Reflow.pdf - 第28页
在线预览 Void Reduction in Bottom Terminated Components Using Vacuum Assisted Reflow.pdf PDF 文档。
Conclusions
• Surface finish had no measurable effect
• Vacuum pressure had no measurable effect
• Vacuum dwell time had no measureable effect
• Vacuum had no effect on BGA (no vacuum showed
almost no voiding)
• Vacuum vs. no vacuum had a significant effect on BTCs