Soldering circuit plate and soldering method thereof

Abstract

The invention relates to a weldable circuit board and the welding method thereof. The weldable circuit board is used for being electrically connected to an electronic element and comprises at least a circuit board and at least a pair of welding pads. The circuit board is provided with at least an opening, and the pair of welding pads is respectively arranged at two opposite sides of the opening. One of the welding pads is electrically connected to the electronic element through a conducting line, and the other welding pad is electrically connected to the conducting line through an external conducting line, thus, the reliability of the electric connection between the circuit board and the electronic element can be enhanced.

Description

technical field [0001] The invention relates to a weldable circuit board and a welding method thereof. Background technique [0002] In current electronic products, sometimes in order to meet the design requirements of the product structure, two upper and lower circuit boards are electrically connected together by welding. One of the existing welding methods is pull welding, as shown in Figure 1 As shown, this existing welding method is to open a hollow opening 101 on the upper circuit board 100, and form two pairs of welding pads 102 and 103, 107 and 108, wherein each pair of welding pads such as 102 and 103 respectively The welding pads 102 located on two opposite sides of the opening 101 are electrically connected to one of the pins of an electronic component (such as the light-emitting diode 105 shown in the figure) through a conductive circuit 104, and the solder pads 102 located on the other side of the same side A welding pad 107 is electrically connected to another ...

AI Technical Summary

Problems solved by technology

[0003] However, in this existing pull welding method, because only the welding pad 102 or 107 on one side of the hollow opening 101 is electrically connected to the electronic component 105 via its dedicated conductive line 104

Once in the pull-soldering process, if the amount of tin placed at the hollow opening 101 is insufficient or the speed of the pull-soldering is not well controlled, it is possible that the solder cannot be in full contact with the soldering pad 102 connected to the conductive line 104 on one side, resulting in The problem of false soldering, even the solder does not touch the soldering pad 102 connected with the conductive line 104 at all, forming a soldering open circuit, which reduces the reliability of the product

[0004] In addition, since the conventional circuit board only utilizes the welding pad 102 on one side of the hollow opening 101 to be electrically connected to the electronic component 105, when the circuit board is a flexible circuit board and needs to be bent, it is easier to make the welding pad 102 break with the conductive line 104

Images