NSMD and SMD Land Pads. Note: Intel recommends that you use a NSMD pad for most applications because it provides more flexibility, fewer stress points, and more line-routing …

Some field use conditions require the use of solder mask defined (SMD) pads for better drop/shock survivability. The difference between NSMD and SMD is shown in Figure 6.

Two types of land patterns are used for surface mount packages: 1) Non-SolderMask Defined pads (NSMD) and, 2) Solder Mask Defined pads (SMD). NSMD pads have a solder mask …

Dec 31, 2008 · Fortunately, PCB Matrix has a free IPC-7351 Land Pattern Calculator (direct download link here) that you can use to generate land patterns based on the standard. You …

Dec 27, 2023 · Configure the minimum distance allowed between a via and SMD pad by setting the Via-SMD Pad clearance in the Same-Net Clearance rule. If the via and SMD pad must …

Sep 8, 2020 · The IPC-7351 standard specifies some important SOIC footprint dimensions while creating the PCB land pattern; these are the pad width (X), pad spacing (G), and end-to-end …

There are typically two types of pad designs for the LGA package as shown below in Figure 6 and Figure 7. The SMD pads have a solder mask opening smaller than the Cu pad while a SSMD …

Apr 28, 2023 · These paper-thin laser-cut steel sheets are a handy way to apply a schmear of solder paste to the pads of a PCB before component placement and reflowing. But are stencils …

The NSMD type land pad is recommended for the PCB BGA footprint. In addition to the top surface of the land pad, the reflowed solder paste will wet to the side wall making a …

Only one type of a pad (NSMD or SMD) and one type of pad surface finish should be used at a given footprint. Figure 2 illustrates the NSMD and SMD land pattern design.