关键词: RF封装, 焊点开裂, 钎透率, 真空焊接

Abstract: Radio frequency (RF) insulators are widely used in communication, radar, navigation and other fields, and their welding quality directly affects the performance and reliability of the equipment. In the assembly process of microwave components, RF insulators are fixed in the box using the soldering process, and RF connectors will squeeze RF insulators and solder during long-term use, which will lead to short-circuits caused by overflowing of solder or open circuits due to cracking of solder joints under stress. In addition, poor welding voiding of RF insulators can lead to limited product performance. In order to improve the welding quality of RF insulators, fixtures are used to fit RF insulators tightly with the box to avoid extrusion of RF insulators and solder. At the same time, a vacuum environment is introduced to ensure the brazing penetration rate of RF insulators to improve the electrical performance of products.

Key words: RF packaging, solder joint cracking, brazing penetration rate, vacuum welding