SMD, Solder Mask Defined
SMD (Solder Mask Defined) refers to a technique in PCB (printed circuit board) design where the solder mask opening defines the solderable area for surface-mount devices (SMDs). In simpler terms, the solder mask, a protective layer on the PCB, is strategically opened only where SMDs will be soldered. This creates a defined pad size for precise solder application during assembly.
Categories: PCBA Manufacturing