Showing posts with label pcb assembly. Show all posts
Showing posts with label pcb assembly. Show all posts

Wednesday, 28 May 2014

Get Improved PCB Assembly For Enhanced Operations

Since, there is a great advancement in technology. Everything is getting revolutionized and has shown much improvement. Therefore, maintaining the standards is really significant today. Besides all other advancements, the electronic manufacturing and components designing are required to be more focused these days.

The prime reason is that everything is digitized now; you need to build a smart electronic design for their smart operations. Due to these reasons, there is an urgent need for enhanced and advanced PCB assembly and manufacturing. Not only the PCB, the wire cable assembly is another area that must be robust enough to bear all issues in an efficient manner. PCB means the printed circuit board that provides a complete layout to design a circuit by placing the necessary components. As much smart your PCB design will be, that much intelligent application you can develop.

There are many issues in PCB assembly that need to be monitored. Like the soldering quality, layout, computer aided technology that is being used to facilitate the designing process. A professional vendor with a good reputation will provide you a high quality PCB assembly and manufacturing that will encompass all the necessary features.

Usually they provide full turnkey solutions including PCB manufacturing, assembly, material procurement, complete unit assemble and more. Similarly, for the best connectivity a smart wire cable assembly is very important. How well the wires are fabricated, what kind of clamping has been used therein, all these issues have their significance in wire cable assembly. These wires are used in all kinds of domain, whether you talk about medical wire cable assembly, networking cables, SATA cables, data cables and a lot more. Once your PCB and cable accessories are in place, the entire infrastructure would be automatically established.

Friday, 28 March 2014

Surface Mount PCB Assembly is that the Most most popular Technique

Printed Circuit Boards (PCBs) have currently become AN economical, compact and important element of a large kind of machines, computing terminals, PLCs, automobile devices and alternative equipment. PCBs have additionally had AN influence on the introduction of latest technologies and developments within the electronic business the planet around. PCBs, these days, ar used because the reliable and essential instrumentality in connecting individual electronic elements to the electronic style. Among all the pcb assembly techniques, Surface Mount Technology (SMT) is being thought of because the most well-liked technique of late. There ar some ways this system outdoes its shut contestant through-hole assembly technique.

Let’s discuss why SMT is that the most most popular technique today.

It is time economical

Before the SMT technique, point-to-point and through-hole assembly were being utilised immensely. however the matter in these techniques is that they consume lots of your time. The time was consumed as a result of the assemblers had to solder pads to the PCB’s frame and connect wires. the complete method wasn't solely taking lots time, however it had been reworking the means energy transmitted through the complete card. SMT, on the opposite hand, solders parts to the PCB surface instead of through-hole affiliation points. this is often simply an easy innovation that uses automation technique, however it saves huge quantity of your time within the whole producing method. thus this precisely why in style and reliable electronic firms like ‘VctiTech Electronics’ implement this innovative technique.

It is price effective

The machine-controlled SMT technique not solely saves lots of your time, however it additionally prices lesser than ancient techniques do. once model PCBs ar needed in low amount particularly by choice engineers, ancient assembly techniques price way more than SMT technique. Therefore, since SMT utilizes automation technique, it's capable of manufacturing PCBs at terribly low price. this is often why customers got to check that that the wire cable assembly service they take is victimisation machine-controlled SMT assembly technique.

It is energy economical

Since SMT assembly manufactures additional quantity of PCBs than they were being factory-made by past strategies, its potency is clearly way more than past techniques. Logically it will identical work that would have done by point-to-point of through-hole techniques in relatively less time, thus it consumes less energy.
SMT possesses increased usability

PCBs designed for SMT assembly use smaller parts, therefore the total PCB appearance sleek and compact. It additionally has bigger energy potency. this is often specifically why today’s most electronic devices like mobile phones (both featured and non-featured), hand-held and laptop computer computers and machines that require a flat and compact PCB board. SMT-manufactured PCBs ar getting used generally within the electronic circuit style business since most of the present-day’s electronic devices aren't victimisation giant dimensions any longer. From style engineers to OEM machinery designers, all like SMT-assembled PCBs instead of alternative techniques. Hence, SMT is growing in quality.

Wednesday, 12 February 2014

A Detailed Guide to PCB Assembly

Circuit boards are an important part of all electronic chips. There are a lot of chip designing and manufacturing companies in the world which depend mostly upon circuit board manufacturing companies since they do not have their own circuit board manufacturing unit. The end product of these companies might be electronic devices or the chips inside it. But as long as they are not supplied with the integral parts, i.e. the circuit boards they cannot manufacture the final product. So a circuit board is what we call as the heart of every electronic product.

When different electronic components are attached to a circuit board, it is called as printed circuit board (PCB). There are different technologies like surface-mount technology, through-hole technology and box-build, electro-mechanical assembly which are responsible to attach electronic components to form PCB assembly.

How Assembly is done
 
The surface-mount technology and through-hole assembly are mostly used in circuit board manufacturing. Both these methods have their own advantages and disadvantages. The former method consumes less space and less expensive, whereas the latter method takes more space than surface mounting and provides more strength to the board. Through-hole process is more expensive compared to surface mounting.

The components are connected and supported by different conductive pathways, methods, tracks and traces. All these components are cut properly from laminated copper using acid or similar substances. Then the surface mounting starts. It involves making holes in circuit board by drilling and attaching the electronic components through the holes. As soon as the components get inserted in the holes, they are placed on the external pads of the board.

The component leads are fixed to the board mechanically using soft metal molten solder. After getting attached by components the circuit board is called as printed circuit board (PCB) assembly.

The entire assembling of the board and the components uses several techniques. If components are attached in high volume like it’s needed in wire cable assembly or custom cable assemblies, then it is done by bulk wave soldering, machine placement or by using reflow ovens.

Utilities of PCB
 
The printed circuit boards are being used to connect the electrical elements to several appliances and machinery. All electronic device manufacturers use these circuit boards in the production of electronic devices such as computers, calculators, i-Pods, TVs, video games, consoles and so on. But companies have got to hire professional assemblers from registered and authorized assembly service centers when they produce large electronic devices.

Significance of Board Assembly
 
Printed circuit boards come in handy when it comes to any electronic devices since no device operates without a printed circuit board. The other advantage of PCB is that it helps upgrade any electronic device without any difficulty.

If you’re looking for a registered and professional electronic product development designer and manufacturer, visit this website.

Friday, 8 November 2013

How to choose the best PCB contract manufacturer

•PCB (Printed Circuit Board) contract manufacturers are important since they’ve got to play the most essential role in PCB assembling. When you look for outsourcing your PCB assembly jobs, you obviously have to select the best one in the industry, or in your area. This post is specifically aimed at providing you knowledge on how to select the best PCB contract manufacturer. Let’s get started.


 •Manufacturer’s background.
•Before you deal with a PCB contract manufacturer the first thing to watch out for is its experience. Since how long the manufacturer is in biz holds the key. Assembling printed circuit boards in electronic devices is not a new concept so better to go for the oldest among the contract manufacturers. This is how you can have a great chance of availing the best and robust PCB.

•.Location.
Choose the company which is nearest to you. You cannot afford to spend efforts, time and extra dollars just to go reach the contractor. Keep in mind that communication and transport matter a lot when it comes to outsourcing parts of any work (just like the circuit board of the entire device in this case).

•Meeting deadlines. Meeting work deadlines happens to be one of the special features of the best contract company. You can never walk with a contract company that does not assemble the PCB on time. Dealing with a company that delays in production might cost you heavy when manufacturing the total electronic device. So make sure the track record says the best about the assembling company you are going to choose.

•Assembly technicians and Manufacturing equipments.
Best quality and On-time production depend mostly upon the experience and capability of workers, staff and the manufacturing quipments. While outsourcing the job one important thing you should do is review the certification record of the entire staff. Additionally, make sure that every assembler is properly skilled and trained.

•Coming to equipments, proper maintenance is a must. This shows how serious the manufacturing contractor is. Some equipment like wave soldering equipment, reflow ovens and pick-and-place machines must have to clean well in order to retain their durability.

Monday, 21 October 2013

How printed circuit board assembly is done

When you talk about manufacturing circuit boards, note that this is not a simple thing; rather it is a long and complicated process. The entire process consumes time, requires expert brains, technology and electricity, and much more. All these are used to make way for manufacturing the end product, i.e. your mobile phone, or computer system or any other electronic equipment you see around you.

The PCB (Printed Circuit Board) integrates all chips and microprocessors to form the operational part of every electronic device. So, needless to say, PCB assembly is the most important factor in the manufacturing of all electronic devices. Here we will discuss about how printed circuit board assembly is done. So, let’s get started.

Beforehand, it’s good to know that we are not going to cover PCB design and manufacturing. So what we will discuss is what's done to the PCB after it is manufactured, means PCB assembly or integration to all microprocessors and equipments.

PCB assembly is done using 2 types of construction methods.
1. Through-hole construction: Here the leads of the components are inserted into holes.
2. Surface-mount construction: In this case the components leads are placed on the outer surface of the PCBs using some lands or pads.

Both these construction methods include the fixing of component leads to the PCB with molten metal solder electronically or mechanically. When the production volume of the circuit boards is more, then soldering components to the printed circuit board is best done by machines. And, if the production demand is less, hand-made soldering is fine (Ball grid arrays cannot be soldered by hand however).

When the circuit board has the possibility of going through any physical stress, Through-hole construction method practically has the edge on Surface-mount method as it gives more strength and grip to the components. Otherwise, Surface-mount technique works good as it takes up less space on the PCB.

In Circuit board assembly process next comes the testing phase. After the board and components have been fully constructed they are tested to ensure that there is no fault in the operation and the performance of the device is fine. The testing process includes:

1. A thorough visual check to inspect whether all the components are soldered and assembled properly to the circuit board or not (this is accomplished when power is off).

2. When power is OFF, Analog Signature Analysis is also performed. Here a current-limited AC sinewave is applied across two points of the components and the circuit.

3. Switching the power ON, an In-Circuit test is performed to check all the physical measurements like voltage, frequency etc.

4. When power in ON the final Functional Test is also performed to verify whether the circuit board is functioning properly or not. This confirms the product delivery time.

During the testing phase if any part is found improper, then it is removed from the board and allowed to process again which is called Reworking. This concludes the entire PCB assembly process.

PCB assembly process and its importance

Have you ever seen what is there inside your cellphone or computer that operates the system software? It’s not only your computer or mobile but every electronic device works because of an electronic circuitry present inside the device. This circuitry is the main functional unit which is a combination of many small components assembled with a printed circuit board (PCB).

The PCB assembly process:

The entire PCB assembly is a complicated process that involves the following processes.

• Solder paste printing: In this process an initial solder paste is applied on the PCB using a stencil. This concludes the initial binding process of the various components to the PCB.

• SMT Pick and Place assembly: This is considered as the heart of the entire assembly line. Here all individual chips are taken and placed accurately on their designated spots on the PCB.

• Through-hole curing: This is otherwise known as the Reflow mechanism. In this mechanism the board, after fixing the chips onto the solder paste, goes through a conveyor oven to melt the solder and bind the chips the PCB.

• Conformal coating: There are some boards which require lacquer coating for protection. Conformal coating process involves some special machinery work to apply a protective coating quickly and accurately.

• AOI & AXI: Automatic Optical Inspection (AOI) and Automated X-ray Inspection (AXI) are two processes done to make sure the total assembly process is free from errors and mistakes.

• Reworking: Well, this is done once any component or device is found defective or the whole assembly does not function properly. After testing reworking is done by heating the board and replacing the defective part of the PCB with a good one.

Each of these processes is again a complex process altogether which needs heavy technology involvement, specialist man-power and material consumption.

Importance of PCB manufacturing and assembling:

• Microprocessors and chips cannot do on their own. The process of building microprocessors and chips is itself a long and complicated process. But these chips, after they are manufactured, cannot perform their operations if they are not integrated onto the printed circuit board (PCB). So a PCB is an essential part of every electronic device.

• PCB manufacturers are specialists. All companies designing chips and microprocessors can also invest in making PCB integration; but it requires technology and specialists to make components and equipments needed for the integration and assembling of chips onto PCB.

• PCB assembly companies help devise the end-product. To facilitate the assembly work and provide assembly services the PCB integration companies have a no. of Surface Mount Assembly lines making sure the end-product is manufactured successfully.