QFN-20 (4 x 4 mm body width, 2.1 x 2.1 mm center pad, 0.5 mm pin pitch) stainless steel solder paste stencil.Stencil Dimensions: 0.9" x 1.3" x 0.004"This stencil has been designed to work with the following PCB footprint: IPC0011 Footprint Datasheet: IPC0011 (pdf)