What are the types of PCB pad processes?

Choose HASL or OSP for low cost and large pitch; choose ENIG for fine pitch and high reliability; choose hard gold plating for frequent plugging and unplugging or high abrasion resistance; choose ENIG or ENEPIG for high humidity or long term storage; choose ENIG or ENEPIG for comprehensive product cost, reliability requirements, and component type.

Specific meaning and analysis of the 5M1E of production operations

5M1E is an acronym for the six core elements used in production management and quality control to analyse the quality of a product or process, which are known as Man, Machine, Material, Method, Measurement and Environment. The initial letters of these six factors are M and E, so they are collectively called 5M1E.

Difference between soft and hard brazing consumables

Soft brazing consumables and hard brazing consumables are two types of core materials in the brazing process, and their differences are mainly reflected in melting point, composition, properties, application scenarios and process requirements.

Tin Whisker Growth of SAC305 Solder Paste in Corrosive Environment

Sometimes white whiskers can be found at the solder joint of SMT devices. This is probably due to the growth of tin whiskers on the leads. The occurrence of tin whiskers may cause short-circuit problems. Tin whisker is a natural phenomenon in tin-containing solders.

An overview of the grain boundary strengthening mechanism of Sn-Bi-Ag low-temperature solder paste

he crystal boundary strengthening mechanism of Sn-Bi-Ag low-temperature solder paste is a multifactorial synergistic process, which is described in detail below from three perspectives: the specific role of each mechanism, research cases and data support, and synergistic effect:

PCBA processing paste selection of the "five-dimensional evaluation method"

In PCBA processing, solder paste selection is a key link in determining solder quality, reliability and productivity.The "5-Dimensional Evaluation Method" is a systematic and structured selection method, which comprehensively considers the five core dimensions of alloy composition and performance, process adaptability, solder reliability

Abnormal Growth and Cracking of IMC in ENIG Electroless Nickel-gold Plating

ENIG (Electroless Nickel Immersion Gold) is a widely used process for PCB surface treatment, also known as immersion gold or electroless nickel gold. The gold layer of ENIG is thinner and less dense than that of electroless gold plated boards.

Solder paste tin splattering causes and solutions

Solder paste soldering tin splattering refers to the soldering process, high temperature soldering iron tip contact solder paste, solder paste instantly produce a violent reaction, issued by the explosion sound and splattered small tin beads of the phenomenon. The following are the main reasons for tin splattering and solutions: