PCB Layout
Automating sawtooth tuning
Length matching within a differential pair can be one of the more tedious tasks facing a PCB designer. This article describes how a team at communications and consumer electronics semiconductor company Broadcom overcame this by using the automation options available within their design tools. While the article describes automation tailored to a specific task, the [...]
Density revisited
What impact do HDI via structures have on PCB design metrics? Andy Kowalewski describes a recent experiment. A PCB’s density has traditionally been seen as a function of the trace and space geometry and the number of signal layers. Emerging technologies such as microvias and buildup fabrication may force us to rethink this formula. In [...]
Inside the hot zone
Floorplanning informed by thermal analysis can significantly improve PCB layouts, writes Robin Bornoff The number of PCB design constraints seems ever increasing. The risk that a design will fail either functional performance or reliability goals grows for each generation. One increasingly popular trade-off addresses a balance between thermal compliance and signal integrity. Components with high [...]
More efficient board design for RF, analog and digital
New PCB tools have the intelligence to cut time and cost, explains Mark Forbes As far back as Marconi himself, RF design has been seen as having a touch of magic associated with it. Designs that looked just fine on paper would often require empirical tweaks to make them work properly. Until recently, even circuits [...]
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