April 9, 2026

This article takes the rescue incident of the U.S. military pilot's distress device as an entry point to reveal the core root cause of the failure of outdoor electronic equipment - sealing reliability rather than chip performance. The article systematically describes the technical principle of airtightness testing, the transformation of industry standards from sampling to full inspection, and the technical maturity path of domestic solutions (taking Jingcheng Industrial Technology as an example), emphasizing that airtightness testing is a key process to guard the reliability of equipment.