Welding assisting device

Abstract

The invention provides a welding assisting device which is used for providing assistance in welding a chip, wherein a row of pins is arranged on one side of the chip, including the outside pin positioned at one end of the side. The welding assisting device comprises a fixed part and a welding part, wherein the welding part is made of a material having high tin adhering performance; the welding part is connected with the fixed part; and the welding part is adjacent to the outside pin; and the space between the welding part and the outside pin is not greater than twice the space between the adjacent pins of the chip. According to the welding assisting device, the welding part is arranged adjacent to the outermost pin of the chip, and the attaching face of welded tin is added when a welding iron is shifted to the outermost pin, thus, the welded tin can be attracted on the welding part and finally remained on the welding part of the welding assisting device, as a result, the welded tin remained between the outside pin of the chip and the pin on the chip adjacent to the outside pin can be avoided; and the chip can be prevented from short circuit.

Description

technical field [0001] The invention relates to a welding auxiliary device. Background technique [0002] When the existing multi-pin chip is manually soldered, the drag soldering technique is often used. The drag soldering technology is to hang a little solder on the blade of the soldering iron during soldering, and drag the blade along a row of chip pins from one end to the other side slowly, forming uniform solder joints on each pin at one time. However, the initial tension between the pin and the tin is less than the tension between the soldering iron and the tin, and the excess tin can be smoothly detached from the surface of the pin. However, when soldering the last few pins, the tension between the tin and the soldering iron is less than the tension between the tin and the pins due to the smaller contact area between the tin on the soldering iron and the pins, so that excess solder will remain on the last few pins. The tin produced the problem of tin connection, res...

AI Technical Summary

Problems solved by technology

However, when soldering the last few pins, the tension between the tin and the soldering iron is less than the tension between the tin and the pins due to the smaller contact area between the tin on the soldering iron and the pins, so that excess solder will remain on the last few pins. The tin produces a tin connection problem, resulting in a short circuit of the pin

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