Introduction to some applications of preformed gold-like solders
Release time:
2022-06-13
【Summary Description】 There are many kinds of traditional solder forms, such as welding wire, solder paste and preformed solder. The main Welding materials of manual soldering is the welding wire, and the solder paste usually contains metal solder particles, solvents, flux and a little additives, which are usually distributed to each pad in batches by printing. The second is the solder preform containing gold solder, which can complete the solder connection of complex shapes.
TraditionSolderThere are many forms, such as welding wire, solder paste and preformed solder. The main manual weldingWelding materialsIt is a welding wire, and the solder paste usually contains metal solder particles, solvents, flux and a little additives, which are usually distributed to each pad in batches by printing. The second is the solder preform containing gold solder, which can complete the solder connection of complex shapes.
The advantages of preformed solder include that this process can design the thickness and shape of the preformed solder in advance, accurately control the amount of solder used, achieve the best welding requirements with the least amount of solder, and greatly reduce the welding cost while ensuring the welding quality. In addition, with gold solder and other pre-formed solder can usually form a good welding effect at the lowest cost, so that the welding joint to obtain a high electrical performance and welding yield, so the pre-formed solder welding process is a highly reliable, high thermal conductivity package of the ideal welding process.
Secondly, gold-tin eutectic alloy as electronic Welding materials gold solder, its performance is very excellent: suitable melting point, excellent diffusion to ensure that it has a good welding process; strong creep resistance and large thermal conductivity make it applicable to the heat dissipation package of high-power devices.
Gold solder also has its own many shortcomings. Take the gold-tin alloy solder as an example, in which the gold content is much, and the production cost is much higher than that of the tin-lead solder. Secondly, because its composition is a eutectic tissue containing two kinds of IMC, it is very brittle, and it is difficult to perform mechanical processing such as molding and blanking.
Related News
Telephone:+86-18594983359
E-mail:Firmkim@cn-huaguang.com
Zip Code: 311112
Address: No. 82, Qihang Road, Renhe Street, Yuhang District, Hangzhou City, Zhejiang Province
Douyin QR code
We chat number
WeChat public account