At Advanced Circuits we understand that keeping the cost low is an important part of planning your printed circuit board (pcb) fabrication. Here are some things to keep in mind when designing your board to help keep the pcb assembly cost down.
•Use a good drawing package that will locate the components you are using on the printed circuit board.
•View your Gerber and Excellon files with a separate viewer, not just the one provided to you by your design package.
•Consult with your pcb assembler to insure the finish you chose will work best with their assembly processes.
•Begin by placing the components that require a specific location first.
•Leave at least 100 mils between components and the printed circuit board edge.
•Attempt to space out your components evenly horizontally and vertically, and orient like printed circuit board components the same direction whenever possible. Insure that the orientation of polarized parts is the same. Avoid placing your components at angles other than 0 or 90 degrees
•When it is necessary to have components on both sides, keep sensitive, heavy, or through hole components on the primary side. Also, any components that need special attention should be kept on the primary side of the printed circuit board as well.
•When deciding where to place PCB assembly components, always attempt to minimize trace lengths.
•Consider the volume of the run. If you have a low volume then PCB assembly by hand is a viable option. If you have a high volume run, it is most cost efficient to use automated printed circuit board assembly. Also, the volume is not only determined by the number of printed circuit boards ordered but also by the number of components on each PCB. Check with your PCB assembler to determine what volume your run is considered.
Producing circuit boards is often a process that takes time and is not regarded as a “simple thing” to do. Even though, you’ll find enthusiasts who are able to make their unique boards at home with the best materials, but they normally have a tendency to be not as complex as machine made printed circuit boards. Also, it may be quite time consuming to hand make 20,000 Printed circuit boards. Below, it will briefly walk you through the actual Pcb Assembly course of action and what is required at each stage. Pcb Assembly, which also is known as Printed Circuit Board Assembly is when you will solder electronic elements to a PCB or printed circuit board. A circuit board that has not yet been assembled with the electronic components are called PCB or Printed Circuit board and when the boards have soldered components upon them, they are technologically termed as Printed Circuit Assembly or Printed Circuit Board Assembly. Needless to say circuit board assembly is not necessarily similar to circuit board manufacturing. After you manufacture PCBs, it requires multiple processes that include PCB Design as well as making the PCB prototype. Ahead of the board is often predesigned in electronics or devices, the correct components need to be added by soldering all of them upon. The kind of components together with the procedure for the actual assembly rely on the sort of circuit board it actually is, sort of electronic components that ought to be connected, as well as what electronic device the board will probably be combined with. So, after the PCB is carried out being made, it is time for the various electronic components to be attached to it so as to actually be functional.
This is certainly sometimes termed as PCBA or Printed Circuit Board Assembly. There are two forms of construction methods useful for the assembly.
1) Through-Hole building: Component leads are inserted to the holes
2) Surface-Mount construction: Components are placed upon lands or pads on the outer surfaces of the PCB. Interestingly, throughout construction types, the component leads continue to be electrically and mechanically fixed to the PCB using molten metal solder. Depending on volume of boards that need to be assembled will determine how the components can be soldered. If it is for a substantial production quantity, then soldering components to the Printed Circuit Board is best done by piece of equipment placement. Machine placement is performed along with volume wave soldering or reflow ovens. Or else, in case the production quantity ideal for small number prototypes, soldering by hand works just fine in most cases (Ball Grid Arrays are actually impossible to solder by hand). Usually, through-hole and surface-mount construction should be performed in one PCB assembly mainly because some needed electronic components only available in through-hole packages, while others are only easily obtainable in surface-mount packages. Also, this is a valid reason to utilize each of the methods in the course of the same assembly due to the fact through-hole mounting will essentially provide more strength for the electronic components which have been more likely to bear some physical stress. Knowing that a Pcb isn’t going to go through any physical stress, then it is often techniques in order to consider less space on your board.
Starting wholly engineered over the PCB, normally it is better to examine to verify the board correctly as well as the particular functioning needed. Here I will discuss the strategy they are examined when they have been produce.
1) A fairly easy visual examination to ensure that is perhaps no electrical components abnormal on the circuit board. It is also the best time to be sure all of the soldering. (energy is off)
2) Analog Signature Analysis: in case you applie something-limited AC sine wave throughout 2 points inside electrical components as well as circuit. (energy is off)
3) Undertaking an In-Circuit Test: investigating various physical dimensions when using the board such as current, frequency, etc. (energy is on)
4) Undertaking a practical Test: making sure the particular circuit board truly does indeed what it is intended for. (energy is on) Just in case your number of within the printed circuit boards are unsuccessful these assessments, only a few sheds. You’ll find a way to discover the location where the issue is happening and change the failing components and/or board allowing it to provide. This really is regularly generally seen to concerning as reworking. Circuit boards alongside the manufacturing process on their own account is not only complicated, however an essential part for individuals firms throughout the world. With developments within technology and capabilities of outsourcing, US symptom in the art pcb manufactures possess required to surpass to stay operating and deliver support that is unmatched to local and globally competition.
About PCBway
Since 2003 PCBWAY has been the leading PCB quick turn manufacturer specializing in both Prototype and Production quantities, Initially produced single-sided and double-sided printed circuit boards for the consumer electronics market. PCBWAY is ranked among the top 4 board fabricators in asia and is well-known for its expedited turn time capabilities and its reliable best on-time shipping record.
Today, we have over 450 operators with high modern facilities to manufacture multi-layer PCB up to 12 layers. Backing up with a group of professional engineers, and well established quality system. PCBWay has grown to become a major PCB manufacturer in Asia to serve in diverse customers base such as electronics appliance, communication, educational electronics, power supplies, Automationsetc.
Our mission is to become one of leading PCB manufacturer that provide in high quality product with total customer satisfaction.
For more information about PCB, or to learn more about the online quote and ordering process, please visit //www.PCBway.com.
