| http://etasmt.com:9060/te_news_industry/2021-09-01/24567.chtml
generation reflow soldering: Vacuum steam condensing welding (vacuum vapor phase welding) system Welding without voids in confined spaces, the heat transfer efficiency is highest (300 W-500W/m2K
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/06/Vacuum-Fluxless-Reflow-Technology-for-Fine-Pitch.pdf
applying vacuum during reflow, it is beneficial to reduce solder voids while solder is at its liquid phase. This is also validated based on a hammer condition test vehicle sample and measured with 3-D x-ray metrology. Our sample size shown in this paper is
| http://etasmt.com/te_news_industry/2021-09-01/24567.chtml
generation reflow soldering: Vacuum steam condensing welding (vacuum vapor phase welding) system Welding without voids in confined spaces, the heat transfer efficiency is highest (300 W-500W/m2K
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