A two-layer PCB stencil is a specialized tool used in the assembly process of printed circuit boards (PCBs) that have two layers of circuitry. It is designed to accurately apply solder paste to specific areas on both sides of the PCB. The stencil is typically made from stainless steel or nickel and features precision-cut apertures that align with the pads on the PCB, ensuring that solder paste is deposited only where needed.
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