Top all-time · #25306
Bert Simonovich
Personal blog · blog.lamsimenterprises.comhardware
Bert Simonovich's personal blog at blog.lamsimenterprises.com covers hardware. Since 2013, 3 different Hacker News readers have linked it 4 times. It is still writing: the last post was on 2025-05-25, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link Bert Simonovich's writing on high-speed PCB design, especially the fiberglass weave effect on signal traces. Commenters point to his publications as a deeper source on the topic.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Innovative Signal Integrity & Backplane Solutions
Most-linked posts?
- /2011/01/08/fiber-weave-effect-timing-skew/2 people · 2 mentions · first linked 2020-08-26
What Hacker News says?
The premise of your comment is excellent - the fiber weave effect you describe is not often considered although the two dielectric materials contained are glass bundles and resin (instead of air). I would highly recommend Bert Simonovich's publications for anyone interested in more ([1] for example). It's worth noting that DDR4 isn't really fast enough to consider "non-Euclidean" traces, though when it comes to the…
Comment linking /2011/01/08/fiber-weave-effect-timing-skew/
on “Fritzing is an open-source electronic design tool”Submitted Non-Contact Interconnect: When Crosstalk Is Your Friend as a story · 1 points
HN discussionYou may enjoy reading the fiberglass weave effect in circuit board designs [0][1]. At multi-GHz frequencies, it turns out the grid-like microscopic structure of the circuit board creates dielectric constant and impedance variations, which can cause distortion in high-speed signals such as PCI-E. The solution? Always run the signal traces at an angle, so horizontal and vertical lines that are parallel to the microsco…
Comment linking /2011/01/08/fiber-weave-effect-timing-skew/
on “PCI Express Retimers vs. Redrivers: An Eye-Popping Difference (2019)”Submitted T1C Line Repeater–A Blast From The Past as a story · 1 points
HN discussion