Sep 2, 2012 · Certain RF applications may need the pad in the via, but then the common practice is to use many vias. BGAs may require via-in-pad because there may not be enough space to route the board otherwise. Certain pads for power dissipation use …

The design method known as “via in pad” involves placing the via directly on the copper pad of a surface-mounted component (SMD). In this article, we will cover the benefits of using a via in pad, when to use one, and how to design a printed circuit board (PCB) for it.

May 12, 2015 · Placing a via on or very near to a pad can result in a weak connection or even tombstoning due to the solder being pulled away during reflow. It is recommended to have a small amount of solder mask between the pad and the via in order to prevent this from happening.

The weakest part of an SMD pad is that the copper could delaminate from the fiberglass, and lift off the PCB itself. Anything you could do to prevent that would help, including making the pad larger or putting a via in the pad itself.

Jul 22, 2022 · there are ways to do via in pad on the professional level. such as having them capped or filled during PCB manufacture. It is fine for manual soldering, not fine for reflow. It's called "via in pad"... not uncommon when trying to save space. I do it all the time.

Jan 19, 2023 · At high densities, you might be tempted to place a via directly into SMD pads in order to make room on surface layers for other components. In fact, it is acceptable to place vias in SMD pads, but there are certain myths about when and how to place these vias.

Jan 5, 2024 · Via-in-pad refers to drilling vias on pads, commonly used for high density SMD and BGA pads. This article covers in detail the design guidelines, manufacturing process of via-in-pad, and makes comparison of with and without via-in-pad process.

VIA-in-PAD refers to the practice of placing vias directly within the surface mount device (SMD) pads on a PCB. Traditionally, vias were located elsewhere on the PCB, away from the pads. However, as electronic devices become more compact, designers are increasingly integrating vias into the component pads to maximize space utilization.

May 31, 2024 · In certain high-performance or high-density PCB designs, you might encounter the need to place vias directly on surface-mount device (SMD) pads. This technique, often called "via-in-pad," has both advantages and challenges.

Via-in-pad is a technology where the via is placed directly into the pad of a component, rather than in the spaces between pads. This approach helps in reducing the inductance and resistance of the connection, enhancing signal integrity, and saving board space.