The efficient laying out of traces on a pcb is a complex skill, and requires much. In most designs, logic gates are connected to form more complex circuits. All other terminals of the bga cannot be connected in a direct path on the surface. Pcb design software like altium designer includes rules that specify fanout options for fanning out the pads that connect to signal or power plane nets. Yes, i know there are plenty of online resources and youtube videos out there, but i still prefer to learn the basics from a good book. Which bga pad and fanout strategy is right for your pcb. Jul 07, 2016 how to fanout a bga altium designer ad20 duration. Does anyone know of a good booktutorial for pcb design. Recommended design rules and strategies for bga devices user. Typical fanout behavior is for used inner pads to first be fanned out using the traditional dogbone a short route with a via on the end to access another layer, then from the via, they are escaperouted out just beyond the edge of the device, working through the. These rules can be edited or others defined in accordance with your individual design requirements. I have known people during my career who insisted on handrouting every pcb design. Pass by the desk or glance at a shelf of any electronics designer engineer and you will. All examples, in single file 38mb all reference designs, as a single file 141 mb.
Need help with error altium designer all about circuits. Note that these zips were built at the time of the launch of altium designer 10 and may not include the same set of examples and reference designs as what is now available in the content store. This book addressed fanout patterns and layer stackups when using. The fanout options dialog provides controls to specify fanout and escape routing options. Finepitch pcb design is a team effort and may require more than a common list of. For classic bga fanout routing, altium designer offers all the necessary pcb design data and settings for the pin direction of the fanout direction from printed circuit board boga pad whether the. The altium designer bga fanout uses the design rules when fanning out. If you have chosen your via and trace size rules properly, it will place a fanout via between pads, and it will route out an escape trace using the available layers. Altium designer has excellent surface mount component fanout tools.
Altium designer this is based off the current version of altium designer, 6. When i first started i found complete pcb design using orcad capture and layout by kraig mitzner to be of great help. Reproduction of ti information in ti data books or data sheets is. Altium designer is one of the powerful and commonly used pcb design software. Fanout options online documentation for altium products. Here is what you get with the cad output for altium designer license. Ive since switched to altium designer, which is much better, but dont know of an equivalent reference for altium. It is a very similar design tool like altium designer and altium users can continue reading circuitstudio vs altium designer. In this video, i am going to set all the rules in order to auto fanout my bga with altium designer 20. Install this plugin for the ability to select and create 2d bga component footprint pat. These rules can be edited or others defined, in accordance with your individual design requirements.
Circuitmaker is not just a free eda software tool from altium, its also a community of creative people and design content, working together to invent circuits and electronics products for a better future. Oct 24, 2017 the following default fanout control design rules are automatically created, covering the typical component package types available listed in descending order of priority. You cannot specify which layer will be used for which row of the fanout it just uses the next available layer. Add farnell and newark as suppliers for use with the live links to supplier data feature. In digital electronics, the fanout is the number of gate inputs that the output of a logic gate drives. Circuit design standard course for altium designer summer09. A highpincount bga, when routed to its pcb, is the single greatest contributor. Part placement shortcuts in altium designer i read once that circuit board design is 90% placement and 10% routing. Typical fanout behavior is for used inner pads to first be fanned out using the traditional dogbone a short route with a via on the end to access another layer, and then from the via, they are escaperouted out just beyond the edge of the device, working through the available routing.
Nxp, ti and a few others have decent guides that ive seen, but id like to get some stackexcahnge advice based on things people have used themselves. Fanout control online documentation for altium products. Pcie bga fanouts and escape routing blog altium designer. Design rules to fanout a large bga pcb design blog altium. Im not sure that i believe that, but it is fair to say that component placement is a critical part of the overall board design. This tutorial assumes the reader has theoretical knowledge of electrical circuits and is applying that knowledge towards a real world design project. The book details the software altium designer schematic design. But, this is a bit dated and assumes you are using orcad and an old version at that. To summarize, the process of routing a board with high speed signals requires you to manage. Jun 08, 2012 rules and different styles of bga escape routing. Combining manufacturer guidelines with design software rules maximizes your chances of successfully routing your board.
Whether you route away from the bga using dog bone fanout or vias, both methods can be used with smd or nsmd bga pads. With this in mind, lets dig into some tips for fanouts and escape routing. Circuit design standard course for altium designer summer09 chinese edition yong yang, chen xiao ge on. The program is available with a price tag on it but a free package is available for the purpose of trials.
Fanout and escape routing is integrated in many pcb design. Hi, i want to fanout route a bga in altium designer. Eagle vs altiumwhat is the features and differences. I dont have any experience with altium designer, but perhaps one of these links would be helpful. Bga fanout in allegro hi 2 all plz anybody help me as i want to know to fanout a bga in so that the via placed may came right the center of 4 surrounding or grid of the bga. Screenshot of 3d fanout routing in fanout a large bga. I still maintain that a book should not be necessary for properly written software. Practical electronicspcb layout wikibooks, open books for an. While no logic gate input can be fed by more than one output at a time without causing contention, it is common for one output to be connected to several inputs. Now i want to escape routes to be 4 mil, but turn into 5 mil once it leaves the package coordinates. This is a tutorial for an introduction to pcb design using altium designer. Unkown pins when trying to pass from schematic to pcb.
The trick to implementing a fanout and escape routing strategy is ensuring that you comply with the pcie layout and routing specifications. Rf pcb design printed circuit board scribd read books. This section provides information on how to tackle each of these challenges in altium designer. In this video, i am going to set all the rules in order to auto fanout my bga with altium designer 16.
The software is capable to organize a design process from schematic capture basic electric and. Circuit design standard course for altium designer summer09 chinese edition. As to the op there is a tutorial included with altium designer thatll have you up and running very quickly. High speed design in altium designer altium designer 17. These have been enhanced by the addition of support for bga escape routing. To address the issue it would be helpful if you could share more details like what size of bga component and altium errorsif any that you encountered. Open up the design rules by going to the design rules menu selection. Vs in this article we presented the major differences between circuitstudio and altium designer. This industry needs to close the gap between the designer and the pcb production fab. What is a bga fanout, and how to decide number of layers in pcb depending upon bga pins. For additional questions, the help files are ok, but the support forum is fantastic. Fpga schematic design vhdlverilog compilers casm compilers scripting simulation 2d field solver simulation engine library management database and advanced query language. This book is for pcb designers who are designing boards with multiple very.
The builtin cad tools and the activeroute tool in altium designer makes it easy to define your bga pad size and fanout strategy. I witnessed customer designs using these large bgas and 24 pcb. How to correctly solder a vertical copper pipe complete guide got2learn duration. Altium designer bga fanoutroute question eda board. Even with design rule checks, the fab usually has to call the designer or engineer to clarify issues that affect manufacturability and yield. Something that starts off walking through a simple pcb design and progresses gradually into more advanced topics. Bga breakouts and routing advanced electronic technology. Be sure you fanout all the bga pins and place all the bga vias before you. By incorporating all the tools engineers and pcb designers need into a single, stressfree user interface, altium designer dramatically increases design successes, while reducing overall design times.
This layout of contact pads makes it possible to route high pin count components to other devices on the pcb. Once the room has been created, it is time to start working with the design rules. The definition of the signals that need highspeed design rules applied to. Fanout routing in altium designer lets you dictate layout between the classical pin fanout auto or bga fanout routing layout and via in a bga pad. Pcb library expert enterprise edition for altium designer.
One issue that is a bit complicated is pcie bga fanouts for components on these cards. Our advanced cad leap tm technology libraries enhanced with automated preferences. To learn more about this topic please see the full solution bga fanout routing at. Altium designer tutorial by glenn mercier ebook lulu. The escape routing engine will attempt to route each pad out to just beyond the edge of the device making the remaining routing challenge much easier. Rf pcb design free download as powerpoint presentation. The rooms menu in altium designer 19 set up the design rules to fanout a large bga.
Pcb component models are the representation of design components in the pcb editing domain. This dialog allows you to specify fanout and escape routing options. Need a pciexpress card to be designed layout using altium pcb design tool. Among other highend design software, altium designer is gaining popularity at a high rate.
967 534 1186 1010 1215 1025 1188 847 723 1247 542 1406 1200 1401 512 825 34 788 343 561 932 1073 1051 534 900 511 1109 162 478 127 619 727 633