Vertical interconnect access (or via) are small electrical connections that enable the transfer of electrical signals between different layers of a Printed Circuit Board (PCB). If we consider the tracks to be present in the x and y axes of the board, vias exist in the z...
PCB pads, vias, silk screen layers, solder mask layers, etc. When a pad structure is not designed correctly, it is difficult, sometimes impossible, to achieve the intended solder joint. There are two words for pad in English: Land and Pad, which are often used interchangeably; however, fun...
In summary, blind vias and buried vias enable increasedPCB routingdensity, better electrical performance, reduced layer counts, improved impedance control, and mixed signal isolation compared to basic through-hole vias. However, incorporating them requires advanced fabrication processes and design consid...
PCB layoutinvolves identifying all nets and then connecting them on the board layout using copper traces and vias while meeting design rules. Understanding the role of nets is key for successful board layout and manufacturing. This article provides an in-depth overview of PCB nets – what they ...
Although small and sometimes very small, vias are extremely important parts of the circuit board landscape. In fact, in the world of surface mountcomponents, vias are the only means to interconnect copper traces on different layers on a PCB, where earlier, leads of components would do the job...
Hot Vias are a specialized type of via designed for high-frequency applications in printed circuit boards (PCBs). Unlike traditional vias that primarily serve as ground or power connections, hot vias carry high-speed signals between different layers of a PCB. These vias are essential for maintaini...
Blind vias are drilled holes that connect the outermost layers of a PCB to one or more internal layers, but they do not go through the entire board. This means that they are only visible from either the top or bottom side of the board, hence the name "blind" vias. Blind vias are typ...
What are PTH (Plating Through Hole) and vias used for? PTHs on a PCB have two main purposes. One is to solder Through Hole Devices (THDs), which have pins that go through the plating holes and are soldered to the PCB. These holes diameter need to be bigger than the device’s pins...
Whether or not you tent a via comes down to the design of the PCB and the size of the via. Typically, smaller vias are easier to fill or tent. When the via becomes 15mil in diameter, it ends up being too large for the tenting method. Tenting vias providing extra protection for the...
Via Design StrategyPurpose: To maximize signal integrity and smoothly handle layer transitions.Printed circuit boards require PCB vias as they act as conduits for electrical connections between the board's layers. The design and production of vias are governed by several important factors and ...