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PCB Vias
Browse our library of resources to learn more about pcb design and PCB vias.
Meeting Standards: IPC 6012 Class 3 Annular Ring
Take a look at the above image of a PCB layout, specifically the vias and drill holes poking through the silkscreen. It's quite clear that some of these vias are off-center, meaning the drill hit that created these vias was not dead-center in the receiving land. This leaves behind an annular ring, something which might be considered a defect in certain IPC product classes. Under the IPC standards for rigid boards, we have several possible
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PDS Impedance: The Traditional Approach To PDS Design vs. Energy Flow
Take a look at traditional PDS impedance versus the “energy flow” view of PDS design. We’ll debunk misleading information that could cause your designs to fail.
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Making the Most of Your Crystal Oscillator
“Blindly” adopting what a crystal oscillator data sheet says usually results in adequate frequency stability. An oscillator requires the phase shift around the loop to be 360° and this total phase shift must be a precise and stable oscillation frequency.
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When Should You Use a Flex Circuit?
The two predominant reasons for using flex or rigid flex, are to solve a packaging issue or reduce the space and weight of the electronics package. These two are often interrelated and space, weight and packaging, (SWaP) will continue to be a driving force in PCB design.
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Digital On-Demand Manufacturing and a 32-Bit MCU PCB for Everyone
Eli Hughes shows us how on-demand manufacturing through a PCB manufacturer's cloud platform helped him quickly produce a set of high-quality prototypes for a MCU board.
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Through Thick And Thin — How Do You Get High Current Into a High Speed PCB?
The typical large currents in today’s high speed PCB designs require a different approach. This article will describe the stackup requirements associated with these very large current PCBs and how to design them so that they can be readily manufactured properly.
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PCB Manufacturing Trends and Challenges with Summit Interconnect
Learn more about PCB manufacturing trends from Clay Swain, Senior Vice President of Sales and Marketing, and Gerry Partida, Senior Field Applications Engineer.
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What Happens to PCIe Signals Traversing Blind Vias at Higher Speeds?
In our one, two and three-day courses, which we conduct at technical and trade conferences as well as at private on-site classes, we will frequently be asked about particular technology trends and their impact on current designs. Of late, a number of these questions have focused on how the use of PCI Express (also known as PCIe) at higher frequencies impacts signals that change layers through vias. Limits on the number of vias in PCIe generations
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How to Approach Microvia Reliability Issues With Jim Brown of GreenSource
Many people struggle with microvia reliability issues. Listen to Jim Brown discuss how GreenSource has handled many of these problems allowing them to make great strides! Listen to the Podcast: Download this episode (right click and save) Watch the video: {"preview_thumbnail":"/sites/default/files/styles/video_embed_wysiwyg_preview/public/video_thumbnails/TdakhkfOlVk.jpg?itok=jCRmTeix","video_url":"https://youtu.be/TdakhkfOlVk","settings":{
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How Do Pads and Vias Impact Total Capacitor Parasitic Inductance?
In this blog article we discuss how the footprint and mounting style affect capacitor parasitic inductance. The pads and vias back to the PCB power planes increase the total series inductance of the capacitor.
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Non-functional pads—what are they and what problems can they create?
In previous articles on my blog, I have stated that non-functional pads should always be removed from PCB artwork, but I have not gone into detail as to why this should be the case. In the industry at large, there is some confusion about these pads and whether or not they serve a useful purpose. In this article, I will define what they are, how their use originated, the problems they can create and why they should be removed from PCB artwork
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Blind And Buried Vias—What Are They And How Are They Used?
As noted in several of my previous articles as well as a large majority of other published documents, component lead pitches have become increasingly fine, and smaller form factor devices have come to dominate a large number of the products (cell phones) being developed today. The question of how to connect components to both sides of these crowded PCBs should be among the first factors taken into account by a product development team. Typically
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From Mechanical Drilling to Laser Drilling of Microvias
The first PCBs I made as a young engineer were pretty simple, with wires used to connect components on the top side of the board. Once things got more complicated, board space became a real consideration, and components were packed too close for comfort. I eventually had a tangled mess of wires on the top and bottom sides of the board connecting multiple components. Later on, I learned more about using design software for multilayer design. Using
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Sizing Vias in Your Next Multilayer PCBs
If you’ve ever opened up an old cell phone, you’ve likely noticed the intricate dance between traces and vias. These elements tango with the signal traces on inner board layers, and sizing them properly is as much art as it is science. Your vias are critical for accessing the inner layers in a multi-layer PCB. So how do you choreograph the balance between your vias, traces, and components? Your vias should be sized appropriately if they are to be
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50:25
Altium Designer 19 Key Features
We are pleased to announce the release of Altium Designer 19.0! An exciting new era of Altium Designer is here
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43:28
Altium Designer 19 Sneak Peek
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Select the Right Microvia Aspect Ratio in Your HDI PCB
If you’re not familiar with PCB design or electronics in general, you probably wonder how newer electronics can pack so much functionality into progressively smaller devices. It takes more than just Moore’s Law, it takes creative PCB design methods to pack all that functionality into a single device. This gave birth to HDI design for densely packed circuit boards and small electronics, like smartphones and small form factor embedded systems. Vias
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