Laser soldering technology for SMA connectors

The SMA connector is a component installed in cables or instruments, mainly used in telecommunications communications, networks, wireless communications, and testing and measuring instruments. It has the advantages of broadband, excellent performance, high reliability, and long life so it is loved by many people. Next let us learn more about the SMA connector process, namely laser soldering technology.

Here is the content list:

l Principle of laser soldering technology for SMA connectors

l Characteristics of laser soldering technology for SMA connectors

l Process difficulties of laser soldering technology for SMA connectors

l Effect of using laser soldering technology for SMA connectors

Principle of laser soldering technology for SMA connectors

The laser soldering technology for SMA connectors refers to the use of semiconductor lasers emitting a 915nm wavelength of light, optically focused into a laser beam spot greater than 100 microns in diameter irradiating the pad area. The solder pad absorbs the laser energy, and infrared wavelength laser and rapidly heats up. Solder is then added and the irradiation continues to melt the solder. And then the laser irradiation is stopped and the solder area is allowed to cool, allowing the solder to solidify and form a solder joint.

Characteristics of laser soldering technology for SMA connectors

The laser soldering technology for the SMA connector features non-contact, accurate positioning, high laser efficiency, fast tin melting, and full solder joints. It also has the advantages of constant temperature control, stable soldering temperature, no board burning, no tin frying, no residue, and qualified plugging force, which can meet the requirements of precision soldering.

Process difficulties of laser soldering technology for SMA connectors

1、As a communication connector, SMA connectors require good conductivity and solid soldering. SMA connectors require high pull-out force and consistency of solder joints.

2、The metal substrate heat dissipation of the SMA connector is relatively fast, and the welding temperature and heating efficiency requirements are high.

3、The coaxial harness is easy to warp and needs to be ensured to fit the SMA connector product welding point position.

Effect of using laser soldering technology for SMA connectors

1、The soldering consistency of SMA connectors is greatly improved. Closed-loop temperature control is used to ensure stable soldering temperature and full solder joints of SMA connectors. Compared with the traditional manual soldering iron, the consistency of welding is greatly improved.

2、The production efficiency of SMA connectors is steadily improved. The photoelectric conversion efficiency of laser soldering is better than the traditional heating method of soldering iron. And the single point welding time is short, melting tin fast, no fried tin, less residue.

3、The production of SMA connectors is highly automated. Adopting coaxial vision positioning, the accuracy is high efficiency and fast, which can effectively compensate for the difference of incoming material consistency to improve the soldering quality. Module design can be integrated with turntable, belt, and other automated production line production, with the advantages of high compatibility and simple operation.

The above is about the laser soldering technology for SMA connectors. For more information about the SMA connector of LenoRF and the relevant products, such as SMA connector RG174, SMA panel mount jack, RP-SMA connector jack, and so on, please visit other sections of this site. Our website is www.rfcnn.com.