Design a singlelayer pcb using eagle ece480 senior design team 5 cheng zhang 11152012 abstraction. Presensitized positive photoresist pcbs prototyping. These pcbs provide high resolution and excellent fineline control. Printed circuit board mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from coper sheets laminated onto a nonconductive substrate.
I then make a sandwich, double sided pre sensitized pcb between. Learn the basics of pcbs printed circuit boards and learn the information needed to get started designing your first pcb. Pcb led pads schematics layout presensitized dancetale. Also, note that you can tile your pcb layout in eagle using the group copy. Place the pcb on top of the transparency, photoresist facing down towards the leds.
This flame retardant laminate is translucent in color and made of continuous woven glass cloth impregnated with epoxy resin. The tutorial will guild the reader through building schematic, designing pcb layout and generating cam files in the eagle program. At home low volume pcb printing element14 embedded. The boards are made of fr4, which is a flame retardant version of g10 material. However, im having terrible trouble exposing and developing the board, it just never seems to turn out right. I decided to make schematics for led control board using pads, because we have been using that software in school. Presensitizing method is one way of processing circuit boards by using uv light exposure. Jones page 5 of 25 5 you will find that many pcb manufacturers will follow these basic guidelines also, for when they ask you to provide details for a quote to manufacture your board. This application note is a tutorial of designing a singlelayer pcb using eagle program. The ratio of developer to water is about 355ml water. I have no chance to test or run them without making printed circuit board. I havent even reached the etching stage yet because im not happy with the presensitized developing results.
As shown in the video above, i apply the acetate to a presensitized pcb. The pcb can be a single layer and can go up to many layers as a person want, but most of the software support up to 14 layers. In this tutorial, ill explain what pcbs are, the different types, what theyre made of, how theyre manufactured, and the software used to make them. These are for, but not limited to, the datak presensitized pc boards. The pcb is where the connections and components must come together correctly to ensure proper functionality. Unlike most other pcb homebrew guides, emphasis is placed on. Once youve found a good exposure time, write down the settings and stick to your selected pcb type. How to make a printed circuit board pcb using the uv. We offer 116, 2 and 164 fr4 laminate with 1 ounce copper per square foot. Positive presensitized singlesided copper clad circuit. It looks amazingly professional and high resolution after finished.
Throughout tutorials you will be required to refer to this coordinate data. Fast screencasts without audio by matt venn, useful for workshops 5 parts 15 mins. The 600 series positive presensitized copper clad boards are made of a translucent laminate consisting of a continuous woven glass cloth impregnated with epoxy resin. Learn how to quickly start designing with our product tutorials. For some designers, the pcb design will be a natural and easy extension of the design process. Prototyping has never been easier with alexans presensitized pcbs. These presensitized positive photoresist printed circuit boards are ideal for prototyping, student training, and small production runs. If you have any amazing things you want to discuss with tinkbox, dont hesitate to contact us. Even some high volume applications have used kinsten pcb to keep the full process secure and inhouse. How to make your homemade pcb using presensitized board. When i tried developing a presensitized pcb, i never get perfect results for large boards. Creating and modifying a project with altium designer.
Phenolic substrate pcb is particularly suitable for less demanding applications. Since we will be designing a simple two layer board there is no configuration necessary here. Positive presensitized copper clad boards 600 series. Kinsten pcb will allow you to hand made pcb with dense patterns and spacing in the order of 0. Development of an automated presensitized printed circuit board. Expresspcb tutorial step by step for more information. However, the pcb design editor can be used with or without the schematic design as you wish. The boards are ideal for prototyping and small production runs. Compared to toner transfer method, this method brings a more accurate result when it comes to pcb printing. Yeah the lack of opaqueness in the artwork was always a problem regardless of what type of printer i used which meant you had to be very careful with exposure times. If i use a small board less than 6cm by 6cm in a picture frame and use the picture frame clamps and expose the board for one hour, i get good results. Video series by ashley mills, complete with building from source and designing a board 12 parts 5 hours. Kinsten manufacture the positive resist coated printed circuit board pcb for many prototyping, educational and low volume applications.
Positive presensitized copper clad boards 600 series technical data sheet description the 600 series positive presensitized copper clad boards are made of a translucent laminate consisting of a continuous woven glass cloth impregnated with epoxy resin. For multilayer pcb s the stackup wizard button would be used to define the number of copper layers, cores and prepregs. A step by step tutorial and tips on how to use presensitized pcbs. I am going to make pcb by myself with some help from instructions. Designing a printed circuit board michigan state university. Videos by chris gammell at contextual electronics 7 parts 2. Pcb kinsten presensitized positive acting photo resist. All the supplies can be bought from frys electronics, ace ha. Im currently working on my first pcb prototyping by using some presensitized pcb board, purchased from maplins uk. Thus, i ordered 10 pieces positive acting presensitized pcb boards from ebay. The schematic design editor is used to capture your logical design and drive the pcb design. The original artwork has to be a positive for a positive film, or a negative to make a negative film. Pcb123 printed circuit board design manuals sunstone. Eagle tutorial introduction eagle is a pcb cad program for designing and laying out printed circuit board pcb designs.
These boards are coated with a highly sensitive photoresist film that allows short exposure time, typically 60 to 90 seconds using uv exposure unit or 6 to 10 minutes using fluorescent lamp. Presensitized copper clad boards 600 series we offer 116, 2 and 164 fr4 laminate with 1 ounce copper per square foot. The next screen allows us to define the layer stack for our pcb. In this tutorial we are going to learn how to etch using presensitized printed circuit boards. New high quality positive presensitized pc boards are double protected from light and handling damage and feature copper on one side only. Starting with orcad and cadence allegro pcb tutorial for.
When using tracing paper or drafting film, always use manual paper feed, and. Pcb material the kinsten pcb material is available from several australian suppliers 2,3,4,5 in the following formats. You can expose them with a regular lamp and an old picture frame. These are almost as cheap as regular copper boards, and extremely easy to work with. The board is coated using particular blue or similar shade pigment ink that is stable during storage in a dark room and positively reacts to an activator solution thats mixed with it. Most manufacturers use metric size drills, so specifying imperial size holes really is counterproductive and can be prone to errors. Click on the new folder button, and name the new folder tute1. On this board all the components are soldered and interlinked by the copper tracks. Positive presensitized singlesided copper clad circuit board 4 x 6 1 oz. Schematic design, pcb layout, or mechanical integration, our videos will have you designing in no time. I plan on trying the below tutorial and print my own single layer pcb for a. Where applicable, you can see countryspecific product information, offers, and. Then i taped those sheets together for getting thicker contrast different for printed and nonprinted area.
The allegro pcb editor tutorial provides lessons, a sample design. A place to mount the component provides the means of electrical connection between the components. This study entitled automated presensitized printed circuit board etching machine aims to integrate different processes of manual etching layout printing. In the bestcase situation, the full circuit will be laid out on the breadboard and can then be transferred to the pcb. The final product when done right turns out amazing. The manual states it uses a long life 4 watt germicidal uv lamp, and yes, its not what youd call bright.
Its so fundamental that people often forget to explain what a pcb is. Mon to sat from 9am to 5pm our web store is open 247. If you have to diy a pcb layout, the most practical and easiest way to do it is with the use of a presensitized pcb. How to make a printed circuit board pcb using the uv light led method this instructable shows how to create well done pcb s using ultraviolet light. Eel3923eel4924 design 1 and 2 university of florida, electrical and computer eng. Place the pointer over the origin and note the 0,0 reading on the status bar. It takes only minutes, and because its a photographic process, its exceptionally precise. Pcb prototyping with presensitized copper boards electrical. A pcb serves two primary purposes regarding the functioning of automated tools. Single sided positive presensitized pcb 4 x 6 x 116. Stack about 810 textbooks on top of the pcb to make sure the photoresist is tightly pressed against the ink of the transparency. A kicad quickstart tutorial by windsor schmidt 20 mins. Most students have a certain comfort zone working with breadboards, but there comes a time when the complexity of the project or the physical requirements requires electronic design through cad.
A pcb, also known as a printed circuit board or a printed wiring board is a device used in electronic boards to build electronic devices. This tutorial is broken down into logical sections following a typical schematic and pcb design cycle. It took us about 40 boards before we perfected our pcb, so we will share what worked and what didnt work. Setting the part id is required if you link your schematic and pcb. The design of a printed circuit board pcb requires a completed or near completed and functional breadboard circuit. The other way is first you convert the expresspcb file to pdf, and the pdf will be converted into the gerber file. Most commonly used pcb is a single sided pcb and the components and conductors on different. A freeware version is available as a download, which is what we will use in this stepbystep tutorial. Resources and going further overview one of the key concepts in electronics is the printed circuit board or pcb. To do this, select then doubleclick on the component to display its component properties dialog box. Jones page 3 of 25 3 introduction youve designed your circuit, perhaps even bread boarded a working prototype, and now its time to turn it into a nice printed circuit board pcb design. First, we will discuss that how you will change the expresspcb file to pdf.
Now i could have purchased presensitized boards and saved a lot of trouble, but i find the. Move the pointer around the workspace and note how the x,y coordinates change as the pointer position changes. Positive presensitized copper clad boards mg chemicals. For everyone who would like to learn how to start with orcad and cadence allegro. This is discussed in more detail in the accompanying pcb tutorial. Press the insert component into pcb button, then drag the component to the desired location.
This tutorial will breakdown what makes up a pcb and some of the common terms used in the pcb world. After that i placed printed sheet and presensitized pcb board to an empty photograph frame. Quick start guide to expresspcb university of california. Theres quite a lot of difference between the various brands of presensitized pcb s. Making pcbs at home with kinsten presensitesed pcb material. This is a 812 x 11 clear sheet of film that you insert in laser printers and most dry toner copy machines to make a film positive or negative. While the room is somewhat dark, peel the white film off the presensitized circuit board to expose the photoresist. Open the pdf in inkscape accept the default loading parameters. Pcb for many electronic designs, one has a choice to build a circuit on either a breadboard or on a printed circuit board. The longest exposure i have done so far is about six. Plenty of presensitized pcb and other dry film developers employ the same principle. A presensitized pcb is a factory prepared pcb surface coated with a photo sensitive emulsion. The goal of this tutorial is to acquaint you with the allegro pcb editor and apd environment and some of its basic functions.
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