Can leaded solder paste and lead-free solder paste be used together?

Properly reheating and mixing lead-free solder paste is a critical step in ensuring soldering quality, requiring attention to uniformity while preventing oxidation and bubble formation. Below are detailed steps and precautions:

The Effect of Metal Segregation on the Reliability of Welded Joints

Metal segregation is a common phenomenon in the welding process, which refers to the inhomogeneous chemical composition distribution in the metal alloy.

Reflow Soldering with Nitrogen Protection

In the process of lead-free reflow soldering, many companies are concerned about one question, that is, whether the oxygen concentration in the reflow oven will rise? What circumstances need to use N2 to protect the soldering method to reduce the oxygen concentration in the reflow oven?

Why is tin with 97% purity considered pure tin?

In the field of metallic materials, the definition of "pure" often varies depending on the application scenario. For tin, the widespread acceptance of 97% purity as "pure tin" stems both from the industry's balancing act between performance and cost.

How to Properly Reheat and Stir Lead-Free Solder Paste?

Properly reheating and mixing lead-free solder paste is a critical step in ensuring soldering quality, requiring attention to uniformity while preventing oxidation and bubble formation. Below are detailed steps and precautions:

How to Select the Right Solder Paste for COB Packaging?

Selecting the right solder paste for COB packaging requires comprehensive consideration of chip size, packaging process, reliability requirements, and cost. As a specialized manufacturer in microelectronic packaging materials.

Comparison of Advantages and Disadvantages Between ACF (Conductive Adhesive) and Solder Paste in Micro-Assembly

In the field of micro-assembly, ACF (conductive adhesive) and solder paste serve as two core interconnect materials. Their comparative advantages and disadvantages must be comprehensively analyzed across dimensions such as electrical conductivity, process adaptability.

Introduction to the PCB Immersion Deposition Tin

The Immersion Deposition Tin process is a plating-free process for depositing tin on copper surfaces. It works by using copper and tin in an acid solution where the active tin is higher than copper, so that the pad copper foil reacts with the tin ions in the sink and the tin is oxidised and a unifor