A dry solder joint is a soldering defect that occurs when the solder does not properly wet or adhere to the component leads and PCB pads. It results in a weak and unreliable electrical connection. Factors such as insufficient heat, oxidized surfaces, improper soldering, or using low-quality solder cause dry joints.

A "dry joint" occurs when the cooling solder is moved. Since non-eutectic solder alloys have a small plastic range, the joint must not be moved until the solder has cooled down through both the liquidus and solidus temperatures. Dry joints often occur because the joint moves when the soldering iron is removed from the joint.

依照IPC的解釋，冷焊有兩種原因，第一種原因為焊錫中摻雜了過多的雜質，導致焊錫不完全，而呈現出灰色及多孔的外觀，這種現象一般我們比較少見到。 而二種原因為焊接過程中加熱溫度不足所導致，這類冷焊較常出現在早期使用IR (Infrared,紅外線)加熱的回焊爐，尤其是焊點在本體下方的零件，比如BGA或是LGA，因為IR照射不到本體下方，所以熱量傳遞較差，現在的回焊爐幾乎都已經全面採用熱風對流式的加熱方式，所以這類冷焊應該已變少。 另一個較常出現冷焊的製 …

2023年9月4日 · Dry Joint; Lifted Pads; Overheated Joints; Webbing and Splashes; Component Shift; Let’s examine each of these soldering mistakes, identify the cause, ways to prevent them, and possible methods to repair the defect. 1. Cold Joints. Think of cold joints as “false joints” because they usually look like well-done and effective bonds for the ...

In this quick video we find out what a dry, cold or cracked solder joint is and how we can fix it.This problem can affect headphone sockets, power jack plugs...

2025年2月14日 · Dry solder joints are defects that occur when the solder fails to stick to component leads and PCB pads, resulting in poor joints. This text examines the origins of dry solder joins along with methods to identify them and ways to stop their formation along with appropriate methods for their correction to keep PCB assemblies reliable.

2025年3月4日 · Dry solder joints are the cause of repeatedly interrupted electrical connections. They can lead to device malfunctions. These defects arise due to improper soldering techniques. Identifying and fixing them is essential for long-lasting PCB performance.

2013年4月5日 · You will often hear people talking about electronics and they will say "It's probably a dry or cracked solder joint". In this HD video, Mark shows an example of a "dry" or "cracked solder...

2024年5月11日 · Insufficient solder, also known as a dry joint, occurs when there is not enough solder to create a strong, reliable connection between the component lead and the PCB pad. This defect can lead to weak or intermittent electrical connections and may cause the device to fail.

Dry soldering refers to a poor solder joint that lacks proper electrical connectivity on a PCB assembly product. This issue occurs when the solder does not properly melt and bond to the components, leading to weak connections.