PCB Design Blogs

This post is in continuation of  Extending Allegro Layout Capabilities with SKILL , where I described how SKILL code can make things faster and more efficient even without having to code from scratch. In this post, we’ll see sample implementations...

Why do I need SKILL? The difference between generic departmental store clothing and premium custom tailoring is what the effective use of SKILL scripts can bring to your PCB Layout design world.  While our layout applications come loaded with power-packed features...

With the current scenario of COVID-19, you cannot do without rules. You have to soak vegetables in brine for ten minutes, wash milk in plastic packaging with soap, sanitize metals with an alcoholic solution (70% and above), and whatnot. Well, you get...

Crosstalk is the transfer of unwanted signals from an “aggressor” net to a “victim” and is one of the major classes of signal integrity (SI) problems that can exist in Printed Circuit Board (PCB) designs. Reducing crosstalk as...

Installation of software applications depends upon certain factors such as system configuration, the number of files getting installed, and network speed.  Installation time is influenced by a change in any of these elements and hence individual...

Do you want to quickly view a schematic, layout, or IC package without installing the complete OrCAD product suite? Get read-only access to design data created in OrCAD Capture, PCB Editor, Allegro Package Designer Plus? With 17.4-2019 HotFix...

First, teardrops and fillets are interchangeable words in PCB design, and both terms are used here in this post. Second, I’m going to go over fixed fillets from start to finish so you can avoid the problem when you are ready for Fab...

One idea that completely revolutionized the concept of PCB making is adding layers to it. These layers are everywhere and used for everything in a PCB – whether you have to mount the components, provide insulation while keeping the mounting pads accessible, provide power and ground to your PCB, or you need something to carry the signal traces.

The Library Creator 17.4-2019 HotFix 007 update is now available. This time, the entire Templates dialog has got a facelift that will make it easier to locate and select a template. A bunch of changes has been made to the Properties window. Another noticeable change is that we added a few buttons to the Configuration dialog that allow you to quickly add new rules. Keep reading to find out more about the changes....

In this blog, I’m going to share some great news for our Japanese readers. Let's find out what it is…

Return path issues are common and difficult to diagnose in complex printed circuit board designs. In the worst case, a signal could have no DC return path, and your circuit will be open at the lowest frequencies. In other cases, a poor return path ca...

High-speed via structures combine vias, connect lines (clines) or traces, static shapes without voids, and route keep-outs. High-speed via structures comprise of differential pairs with return path vias and route keep-outs for custom voiding.

The HotFix 007 (QIR 1, indicated as 2020 in the application splash screens) update for OrCAD and Allegro is now available at Cadence Downloads. This release includes many improved product features and new enhancements, mostly resulting from...

Design rule checks are essential to ensure the functionality, reliability, and manufacturing yield for a design. You run DRCs several times during the design cycle to validate the design. If I say auditing design rules is an intense and time-c...

Just as social distancing minimizes human contact to prevent the spread of disease, PCB spacing constraints minimize coupling between traces to prevent crosstalk problems for drivers and receivers. In cases where a safe distance cannot be maintained,...

Read how you can easily create accurate footprints from a vendor-provided STEP Model using Allegro ECAD-MCAD Library Creator.

If you think embedding components in a PCB just reduces product size, well that's true but that's only half the truth. Embedding components also increases performance and reduces transmission loss. So it's about miniaturization and performance with e...

So, what if you can figure out all that can go wrong when your product is being assembled early on? Not guess but know and correct at an early stage – not wait for the fabricator or manufacturer to send you a long report of what needs to change. That’s why Design for Assembly (DFA) rules

Have you ever manufactured a printed circuit board (PCB) without analyzing all the routed signal traces? Most designers will say “yes, all the time.” Trace widths and spacing are set by constraints, and many designers simply don’t h...

What is a Power Distribution Network (PDN) after all but resistance, inductance, and capacitance in the PCB and components? And, of course, it is there to deliver the right current and voltage to each component on your PCB. But is that all? Are there oth...

In my previous blog , I talked about creating a footprint using an existing template in Allegro ECAD-MCAD Library Creator and explained how easily you can access an existing template and create a package from it by just clicking a button. In this blog...

Imagine you are on a vacation with your family, and suddenly, your phone starts buzzing. You pick it up and what are you looking at is a bunch of pending, unanswered e-mails. You start recollecting the checklist you had made before taking off only to realize that you haven’t put on the automatic replies!

All PCB designers know the importance of proper power delivery for successful board design. Integrated circuits need the power to turn on, and ICs with marginal power delivery will not operate reliably. Since power planes can...

Longfellow's metaphorical footprints on the sands of time is more profound and eternal no doubt but a footprint for silicon (a form of sand isn't it?) is as important for PCB designers. So, here we will list the steps to create a fo...

With ECAD-MCAD Library Creator, you can easily create footprints for your parts using thousands of ready-to-use templates that are provided with the tool.