Valley Services Electronics

Silicon Valley’s Premier Electronic and PCB Assembly Blog

The characteristic impedance of transmission lines starts with the board stackup.

Blind and Buried Vias for Complex Stackups

As high-density interconnect boards continue to proliferate to meet modern devices’ dual high-performance and functionality requirements, board real estate is becoming more precious. Couple this development with a general tendency for consumer electronics toward portability, and designers must face the all-too-common problem of doing more with less. Historically, one of the more intractable board features…

wire harness manufacturing process

PCB Mounting Hole Size for DFM

While most PCB drilling is for vias and through-hole components, some drilling does not encompass electrical connectivity. The board’s placement within the enclosure requires mechanical drilling for fasteners, and some large components, like connectors, may utilize support pins for additional vibration dampening. While simple features overall, PCB mounting hole sizes require a basic understanding of…

Automotive pcb manufacturer

EMC Automotive Guidelines

The increasing prevalence of electronics in automobiles is welcome to consumers for many reasons: improved features increase safety measures or add new functionality that would otherwise be unachievable. There is a drawback with increasing electronic automation of the vehicle, as issues with signal transmission can undermine or override these safety features. For signal integrity, circuits…

pcb footprint creation guidelines

Aluminum Core PCBs: Lightweight, Heavy Dissipation

As the power demands of devices increase to keep pace with performance, the thermal capabilities of standard PCB materials cannot provide the requisite characteristics for reliable operations. Traditional active and passive cooling approaches can impede project goals and lead to sub-optimal solutions, especially constrained designs due to enclosure size, package weight, or power efficiency. Increasingly,…

component orientation on pcb

Creepage and Clearance Rules for High-Voltage Boards

Any PCB carries essential industry standards that should be followed and considered during design and assembly. Among the various PCB design standards, one crucial set governs creepage and clearance distances between neighboring conductors on a PCB. These standards aid in designing electrostatically safe products, especially those running at high voltage. If a high voltage develops…