HASL vs ENIG: PCB Surface Finish Selection Guide
August 18, 2026
Lead-free HASL is usually the better starting point when cost matters and your assembly can tolerate some variation in pad height. ENIG becomes more useful
Lead-free HASL is usually the better starting point when cost matters and your assembly can tolerate some variation in pad height. ENIG becomes more useful
PCB manufacturing converts released design data into a tested bare circuit board through a controlled sequence of material transformation and verification steps. Each stage changes
PCB cost cannot be reduced to one reliable price per board, layer, or square inch. A bare-board quote depends on how the design uses a
PCB fiducials are exposed copper reference marks used by SMT equipment to align the real board or panel with programmed CAD coordinates. Stencil printers and
IPC Class 2 suits products that require long service life when temporary downtime and field repair remain acceptable. IPC Class 3 applies when operation on
PCB core and prepreg are different material forms used for different functions in a multilayer stackup. A core is cured laminate, normally supplied with copper