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A three-dimensional reflow soldering method for electronic devices

A technology for electronic devices and reflow soldering, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of solder falling, low efficiency, device falling, etc., and achieve high welding accuracy and good welding consistency.

Active Publication Date: 2015-10-07
佛山益辰电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is: the existing reflow soldering method has poor consistency and low efficiency, and is prone to defects such as solder drop and device drop on the Z-axis surface, and the product quality cannot meet the requirements

Method used

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  • A three-dimensional reflow soldering method for electronic devices
  • A three-dimensional reflow soldering method for electronic devices
  • A three-dimensional reflow soldering method for electronic devices

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] Such as Figure 1-3 Shown, the inventive method comprises the following steps:

[0024] Step 1: Print solder paste step by step, that is, print non-identical solder paste on the horizontal surface to be welded 1 and the Z-axis surface to be welded 2, and overprint fastening glue on the solder paste; the horizontal surface to be welded 1 The solder paste is ordinary 63Sn / 37Pb solder paste with a melting point of 210 degrees Celsius, and a high melting point solder paste with a melting point of 217 degrees Celsius is used on the Z-axis surface 2 to be welded.

[0025] The printed solder paste is discontinuously arranged in a dot matrix, with a solder joint diameter of 0.25 mm and a solder joint spacing of 0.8 mm.

[0026] Step 2: Vertically erect the two Z-axis soldering surfaces 2 and place them on the horizontal soldering surface 1. First fix them wi...

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Abstract

The invention discloses a three-dimensional reflow soldering method of an electronic device. The method comprises the following steps of: before reflow soldering, printing soldering pastes step by step, i.e. respectively printing different soldering pastes on a horizontal to-be-soldered face zone and a Z-axis to-be-soldered face zone, wherein a melting point of the soldering paste on the horizontal to be-soldered face zone is lower than a melting point of the soldering paste on the Z-axis to-be-soldered face zone; when reflow soldering is carried out, soldering the horizontal to-be-soldered face zone, and then soldering the Z-axis to-be-soldered face zone. The three-dimensional reflow soldering method of the electronic device is simple in process and convenient to operate, realizes three-dimensional soldering, and is high in soldering accuracy and good in soldering consistency.

Description

technical field [0001] The invention relates to a soldering method for electronic devices, in particular to a three-dimensional reflow soldering method for electronic devices. Background technique [0002] With the development of electronic products, electronic products that require heat dissipation, signal shielding, or signal transmission and reception need to perform shell seam pads or vertical welding of devices on the Z-axis plane. [0003] Usually, the Z-axis surface of the workpiece to be welded is placed horizontally first, and then placed vertically on the base surface after welding for manual welding. This almost completely manual welding mode leads to poor product consistency and Production efficiency is low. [0004] In addition, the manual soldering method generally adopts the existing reflow soldering. [0005] Reflow soldering is one of the common soldering methods. Reflow soldering is a literal translation of English ReflowSoldring. It is to remelt the past...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00B23K1/20
Inventor 舒平生魏子陵王玉鹏杨洁郝秀云
Owner 佛山益辰电子科技有限公司