Content is copyright of company represented,
but page format and custom text and images are my copyright - do not distribute.
San Francisco Circuits is pleased to publish the important
factors that drive trace width, length, and style during the PCB design process.
August 5, 2020 - San Francisco Circuits (SFC)
shares in a recently published article entitled, "The
Importance of PCB Trace Widths in PCB Design," that there are a variety of applications
that demand specific trace layout characteristics and how or when to incorporate
them into PCB designs. A specific PCB application will determine trace widths and
trace types in a PCB design and a balance should be maintained between PCB fabrication
cost, board density/size, and performance.
The purpose of a PCB trace is to connect any kind of electrical signal - analog,
digital, or power - from one junction to another. And if a PCB has specific design
requirements such as speed optimization, noise or coupling mitigation, or high current/voltage,
the trace widths and types might be more important than optimizing for manufacturing
cost of the bare PCB or overall board size.
There are a number of trace-related specifications in PCB fabrication. The following
trace-related specifications begin to drive up bare PCB fabrication costs. The costs
become considerably higher due to tighter PCB tolerances and higher end equipment
needed to both manufacture and inspect or test the PCBs:
- Trace widths narrower than 5 mils (0.005")
- Trace spacing closer than 5 mils
holes with a diameter smaller than 8 mils
- Trace thickness thinner or thicker than
1 ounce (which equates to 1.4 mils)
- Differential pairs and controlled lengths or
About San Francisco Circuits
San Francisco Circuits is a provider of PCB fabrication and assembly, has a dedicated
team specializing in simple and complex PCB fabrication and assembly technologies.
They can produce elaborate and high-quality PCBs in a number of custom and common
layouts. From basic to intricate PCBs–their engineers will meet your PCB fabrication &
assembly needs. The company provides a rare balance between technical expertise
and competitive pricing. And they not only provide high-quality products but also
high-quality customer service at the same time. San Francisco Circuits has been
voted by National Television as the "world’s greatest in PCBs" and has demonstrated
experience as a power player in PCB fabrication and assembly.
If you are looking to discuss PCB projects of any size or scope, feel free to
reach out to them via our website (see below).
San Francisco Circuits, Inc.
Posted August 7, 2020