Adhere to our tolerance guidelines to ensure the best results for your printed circuit boards.
They provide enough variation for us to manufacture your board — and for it to work properly in your application. Minimum of 0. For scoring, minimum of. This means the annular ring radius of the pad should be at least. Our minimum finished hole size is 0. Call your salesperson if you required a finished hole size less than 0. If your hole tolerances are zero, then Imagineering will assume that you are OK with our default hole tolerance.
Note: We rout to your board size using the center of the board outline from the outside. Copper spacing is the minimum air gap between any two adjacent copper features. Trace width is the minimum width of a copper feature, usually traces.
This is the expansion of mask relief over pad area. Our minimum is 0. Imagineering will modify files to meet the minimum dimension, unless requested otherwise. PCB Fabrication Tolerances Adhere to our tolerance guidelines to ensure the best results for your printed circuit boards.
Hole Size Our minimum finished hole size is 0. Printed Circuit Board Thickness Boards below 0. For 0. Soldermask Swell This is the expansion of mask relief over pad area. Learn About Imagineering. Have questions? Contact Us.Search articles:. Contact Us. About Bittele. Why Bittele.
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Prototype PCB Assembly. SMT Assembly. BGA Assembly. Parts Management. IC Programming. Functional Testing. DFM Guidelines.Get instant answers. Dimension Tolerance. For the 1. For the 0. Legend Line width less than 6mil 0.
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PCB Trace Width Calculator
Sign in Hi. Login now to access File History No file uploaded. No extra fee for different color of solder mask.SOLIDWORKS 2019 PCB Envelopes and Thickness
Thickness 0. Trace 3. Drill Hole Size 0. Half Hole Diameter 0. Controlled Impedance PCB. No extra charge and only accept our default layer stack-up.
FR-4 board material. Solder Mask. Finished Outer Layer Copper. Finished Inner Layer Copper. Via hole size. Via diameter.
Via To Trace. Drill Hole Size. Hole Size Tolerance. Annular Ring.Printed circuit boards are versatile components used across numerous industries and electrical devices. Did you know that PCB copper thickness can be a crucial factor in designing the perfect board for your needs?
Copper plays an integral role in PCB conductivity, and that is why you need to choose optimal thickness for your application. Take a look at our guide and get to know different weights available, but that is not where we will stop. We will also teach you how to place an order from a reliable manufacturer. Before we can discuss copper weight, it is essential to learn a thing or two about this material.
Copper is a chemical element that belongs to the category of metal. In the construction of PCBs, copper is used as an alloy. That is what enables it to be a great conductor, and it is why it is used in devices manufactured across various industries. It is also the reason why it is one of the major components of any printed circuit board.
If you want to see its conductivity capabilities, you need to heat it or cool it to a specific temperature. That is how PCB manufacturers ensure that the copper they implemented carries a charge.
If you want to calculate copper weight, you need to have all the necessary information. Start with the form of the copper, which can be a tube, sheet, bar, or any other type if the manufacturer gets creative. The next thing you need is to consider the copper grade.
Here it is essential to check out whether you are using pure copper, or an alloy combined with other materials, such as nickel. Depending on that, you can determine the grade precisely.
In most cases, PCB manufacturers use the copper that has a C class. Flat bars and sheets are the most common forms of copper used in printed circuit board manufacturing. However, it is not that unusual that the designer melts down other copper shapes to use them for plating. When it comes to PCB copper thickness, you should know that it is calculated in ounces. The measurement represents the thickness of a copper ounce when you roll it out on a single square foot.
If you notice the information specifying that you are dealing with a one-ounce copper, its thickness is 1. Even if it sounds confusing, the good news is that you can leave everything to the pros. The only thing you should know is how to pick the right thickness for your desired application, and your preferred manufacturer will turn your desires into reality.
Although it may seem a bit unusual, the thickness of the copper used in PCBs is measured in ounces. Now that we learned the details, we will focus on assessing the different weights used in printed circuit boards.
If you are not a PCB expert, you might want to know which size clients most frequently order from the manufacturers. The statistics will tell you that it is 1 Oz copper that is usually a component of a printed circuit board. The majority of the companies consider this to be the standard PCB copper thickness. Unless the buyer states, otherwise, they will use this thickness, and there is a good reason for that. A 1 Oz copper can carry more than enough current for most applications.
As such, they are very versatile, and you can use them in both rigid and flexible printed circuit boards. The experts consider 1 Oz copper thickness to be the optimal deal in terms of price, too.
You will get a reliable and durable component that can secure a consistent performance of your board.The thickness can be specified from 0. Yes, we can make 2 layer PCBs as thin as 0. Some PCB Stack Ups and layer-counts will have higher minimal thicknesses due to additional material needed to manufacture the Stack Up. Here you can select different default PCB thicknesses or set a custom thickness!
When you select custom thickness the PCB thickness field turns into a text field where you can enter the value you need in millimeters. Selecting a custom thickness will prevent your design from being panelized with other designs, so minimum PCB area charges will apply, but no additional charges will be added unless you increase the thickness higher than that of the standard stackup for your layer count. Our expectation is that the PCB fab has some copper-clad core, with the total thickness of the copper and FR4 material equaling 1.
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What are core and prepreg? Core material is an FR4 substrate that has been fully hardened and is pre-plated with copper foil. Prepreg pre -im preg nated is a layer of epoxy resin that has not been fully cured, with a thin layer of fiberglass embedded in it. To make PCBs out of multiple layers, the prepreg is stacked and then pressed and heated.
The epoxy cures fully during this process. To create a custom thicknesses, the PCB fab starts with a set of common core and pre preg thicknesses, then combines them in the necessary sequence, along with copper foil, solder mask, and copper plating thickness to reach the desired final thickness. For example, to make a 1.Adhering to these tolerances will allow for proper manufacturing of your PCBs. Within these parameters, there is enough variation to allow us to manufacture the board and then also for it to work properly in your application.
If you have any questions or want to discuss unique requirements, please call to contact us. Minimum of 0. For scoring, minimum of. This means the annular ring radius of the pad should be at least. If your hole tolerances are zero see belowthen Advanced Circuits will assume that you are OK with our default hole tolerance.
Our default hole tolerance is listed above. Our minimum finished hole size; 0. Call your salesperson if you required a finishedhole size less than 0. Note: We rout to your board size using the center of the board outline on your mask layer.
Copper spacing is the minimum air gap between any two adjacent copper features. Trace width is the minimum width of a copper feature, usually traces. We can process. CU finished inner layers. For 1 oz. Note: Advanced Circuits does not offer weights such as 1.
It only takes a minute to sign up. I plan to run mA through some thicker traces, but less than 30mA for all other traces.
About what size would I need? Your traces can be any size you want as long as you stay within the minimum feature size and spacing that your PCB fab supports for your particular price point. These will cover basic needs, the trace width one is a best fit calculation to the chart Engen posted:.
PCB Via Calculator. Move right horizontally, until you intersect the line of the appropriate conductor thickness. Move down vertically to the bottom of the chart to determine the cross-sectional area of the conductor.
Move up vertically, until you intersect the line of the appropriate allowable temperature rise. This is the increase in temperature of the current-carrying conductor. Move left horizontally, to the left side if the chart to determine the maximum allowable current. If you are making your own boards, then you want traces as large as you can get by with -- perhaps 15 mils 0. Note: with traces that large, you will typically have to narrow the traces down a bit before connecting to IC's pins with fine pitch pads.
If you are having a board house make your boards, then you can use smaller traces for signal traces, say 8 or 10 mils if you have room. Most PCB fabricators that do fast and inexpensive boards have a minimum trace width of 5 or 6 mils, but if you can go a little larger, the better. For military and other high-tech boards, they can now go as small as 2.
For power traces, then I agree with other posts that you should use a trace width calculator like this one. I generally end up using 20 or 25 mil traces for power rails. But the calculator will give you ridiculously small trace widths for signal traces that might carry only a few milliamps. Note that in addition to trace widths, you will also want to space your traces apart, typically by the same distance as the trace width.
Printed Circuit Board Manufacturing Capabilities Summary
You can enter these rules such as minimum trace widths and minimum distances between traces, between traces and vias etc. PCB makers sometimes produce swag that has this kind of thing on it, because it's common to want to get a feel for PCB traces that are out of one's comfort zone. Here's a photo of one such trade-show give-away, with a dime for scale as well as the ruler scales.
Figure 1: Cross section area to current. External layer.