A footprint is a graphical representation composed of pads used for connecting electronic devices to a PCB. Any error while creating a footprint can cause redesigning of the whole board. Therefore, creating the right footprint is important to the des...(read more)![]()
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BoardSurfers: Training Insights: Creating Footprints in Allegro PCB Editor
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ASCENT: Analyzing Electrical Stress, Aging, and Faults of PCB Components
Component heating, Joule heating, heat sinks…does the very idea of checking the stress of hundreds of devices on a board for various operating conditions make you reach for a cup of coffee?
Is a ¼ Watt resistor dissipating 1/3 Watts?
D...(read more)![]()
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BoardSurfers: Managing Minor Spacing DRCs Using Manufacturing Tolerances
While translating boards from different PCB design applications or changing design units in the later phase of a design cycle, a wide variety of mathematical round-offs may occur for geometric computations. As DRCs are logically computed, the DRCs cr...(read more)![]()
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BoardSurfers: Voiding Text in Copper Shapes
Almost every PCB design includes different types of shapes, mainly for ground and power connections. Shapes in a PCB usually represent copper areas. When designing a PCB, you might want to create a square at the board edge which is an exposed copper ...(read more)![]()
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BoardSurfers: Training Insights: How to Assess Electrical Performance of Packages
In this blog, you will be taking an IC package design from Allegro® Package Designer Plus (APD Plus) and export the design to Sigrity XtractIM. You will use XtractIM to extract models from the exported package and to assess the electrical pe...(read more)![]()
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(P)SpiceItUp: Simulation Profiles in Five Steps
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Boardsurfers: An Introduction to Allegro DesignTrue DFM Rule Aggregator
Design companies often work with multiple PCB fabricators and each fabricator may have a different set of DFM rules. It is a customary practice followed by design companies to create a common denominator rule set that can be applied to all fabricator...(read more)![]()
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Designing the Allegro System Capture Way
A design starts in the mind of an architect, gets drawn on whiteboards as basic block diagrams that describe a system. Next, designers see what can be reused from older designs, schematics get drawn, parts are identified, from in-house libraries or from online vendors. If the available parts don’t match their requirement, librarians are asked to create or modify parts. Then checks and rules are run to ensure design integrity. Teams work together on a large design. Libraries are updated, flags go up on the designers’ screens telling them newer parts are available, or someone has made changes. They sync their changes. Different versions are maintained for the entire design or even the parts used. Variants are created for different costs or geographies. Finally, the logical design gets done and is converted to a netlist, and layout files are made. Routing and layout experts come into the picture and, ta-dah! the design is ready for fabrication.(read more)![]()
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BoardSurfers: How to Create and Remove External DRCs using SKILL in PCB Editor
Design rules checks (DRC) determines whether your layout design complies with design constraints and highlights any violations. Performing DRC is an essential step of PCB development signoff before you generate manufacturing files. With increasing mi...(read more)![]()
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ASCENT: Some Basic Rules for Design Verification
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(P)SpiceItUp: Simulation Profiles in Five Steps
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Boardsurfers: An Introduction to Allegro DesignTrue DFM Rule Aggregator
Design companies often work with multiple PCB fabricators and each fabricator may have a different set of DFM rules. It is a customary practice followed by design companies to create a common denominator rule set that can be applied to all fabricator...(read more)![]()
![]()
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Designing the Allegro System Capture Way
A design starts in the mind of an architect, gets drawn on whiteboards as basic block diagrams that describe a system. Next, designers see what can be reused from older designs, schematics get drawn, parts are identified, from in-house libraries or from online vendors. If the available parts don’t match their requirement, librarians are asked to create or modify parts. Then checks and rules are run to ensure design integrity. Teams work together on a large design. Libraries are updated, flags go up on the designers’ screens telling them newer parts are available, or someone has made changes. They sync their changes. Different versions are maintained for the entire design or even the parts used. Variants are created for different costs or geographies. Finally, the logical design gets done and is converted to a netlist, and layout files are made. Routing and layout experts come into the picture and, ta-dah! the design is ready for fabrication.(read more)![]()
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BoardSurfers: How to Create and Remove External DRCs using SKILL in PCB Editor
Design rules checks (DRC) determines whether your layout design complies with design constraints and highlights any violations. Performing DRC is an essential step of PCB development signoff before you generate manufacturing files. With increasing mi...(read more)![]()
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(P)SpiceItUp: Generating ISO 7637-2 Standard Pulse 2a in PSpice A/D
Many times, you would have required to create a standard pulse waveform that can be used for testing devices as per the industry standard.
One good example is to simulate the ISO 7637-2 transient at the schematic design stage. This practice ensures t...(read more)![]()
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(P)SpiceITUp: The Power of Options in Managing Accuracy and Speed Using Relative and Absolute Tolerances
The tolerances are not unique to only PSpice or simulators, they are part of any problem requiring numerical methods of solutions involving reiterative steps that finally converge. For example, many data analysis applications will require ABSTOL and RELTOL. Let us then first try to understand what these tolerances exactly...(read more)![]()
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BoardSurfers: Training Insights: A Comprehensive Solution for Setting Up PCB Design Parameters
PCB design complexities increase with the increase in the number of parts and layers in a design. For creating these complex designs with maximum efficiency, the design tool should be equipped with advanced features and functionalities. In the desig...(read more)![]()
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BoardSurfers: Using Variables and Stacks in Allegro SKILL
In our previous blog post, we discussed how to count the number of pins and rename reference designators using the SKILL codes available in the Allegro SKILL Code Library. In this blog post, let’s focus on how to create a stack and define globa...(read more)![]()
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ASCENT: Reusing Designs in Allegro System Capture
This post is for those of you who have been creating logical designs and boards for a while. In most cases, a new product or design doesn’t require every component or module to be made from scratch. Most standard components are reused and, at t...(read more)![]()
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BoardSurfers: Exchanging Manufacturing Data in IPC-2581 Format Using Allegro PCB Editor
IPC-2581 ensures efficient PCB design data transfer and brings advanced capabilities to extract all the required data for manufacturing and assembly. This includes netlist, test pad information, artwork, drill data, bill of materials, test files, and design variants. While exporting data, you can choose to suppress any information which is not needed for fabrication, assembly, testing, or procurement(read more)![]()
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