RoHS Compliance
RoHS limits 10 hazardous substances in electrical and electronic equipment sold in the EU; compliance requires supply-chain controls, testing, and technical documentation.
Conformal Coating
Conformal coating is a thin polymer film applied to PCBs to protect against moisture, chemicals, dust, salt and vibration. Choose coatings (acrylic, silicone, polyurethane, parylene, UV/waterborne) based on environment, electrical needs, reworkability and process compatibility.
Lead Free Solder
Lead-free solder (commonly SAC305) became standard after RoHS. It requires higher temperatures, different fluxes and equipment adjustments, and produces less shiny joints and reduced through-hole top-fill - but reliable assemblies are achievable with proper process control.
Computer Repair Tools
A practical guide to what a modern PC repair kit contains, safety updates (ESD and solder), and buying tips - with notes on older brand kits and what to verify before purchase.