- Surface Mount PCB Assembly"

Why SMT With BGA Packaging Is Preferred Over The Through-Hole Technology

admin — Wed, 19 Mar 2014 12:34:53 +0000

SMT or Surface- Mount technology helps in production of electronic circuits. The components are placed directly onto the surface of PCBs or printed circuit boards in this type of technology. The electronic devices which are made by this method are called surface-mount device or SMD.

Surface Mount technology has emerged as a popular choice and has replaced the through-hole technology within the industrial structure. In the through-hole technology, the fitting components are constructed with wire leads put into the holes of the circuit board. SMT component is preferred over the through-hole substitute, since it is smaller in size. This is so because it has smaller or no leads in it. The pins or leads may be of various styles, viz. terminations on the body of the component, flat contacts, or a matrix of solder balls better known as ball grid array.

As mentioned above, BGA or ball grid array is the very packaging type used in surface-mount devices. These are used basically for integrated circuits. It provides more interconnection pins than a flat package or dual-in line. Instead of the perimeter, the whole surface of the bottom can be used in these types of devices. It also provides shorter leads than the ones in perimeter type, thus leading to a better performance with high speed. Soldering of these devices require precision. So, automated processes are used.

Advantages of BGA packaging:
•   provides high density
•   provides less thermal resistance between the PCB and package
•   the leads has low inductance

The SMT soldering process should be done matched with the design and specification of the device. X-ray inspection should be used to test the solder joint quality. 3D-X-ray inspection is done to detect the problems of BGA assembly on SMT soldering.
To know more about Surface Mount PCB assembly logon to http://www.dferrantielectronics.co.uk/.

About Surface Mount PCB Assembly

admin — Sat, 30 Mar 2013 05:21:26 +0000

Surface-mount PCB Assembly refers to the process of manufacturing and designing PCBs or Printed Circuit Boards without drilling holes as in the Pin Through-Hole method. Instead, the components that require soldering are mounted directly over the surface of the PCBs. The components thus formed, are more minute and smaller than their PTH counterparts as they do not require making holes and may or may not contain leads. The equipment or accouterments required to carry out SMT comprise reflow oven, solder paste screen printer, inspection equipments, repair tools, solven cleaning products and the likes.
What to Consider while Designing an SMT

One of the main considerations while undergoing any electromechanical assembly is the thermal compatibility and this holds true for SMT as well. The packaging of the Surface Mount PCB products is something which requires attention for checking into the thermal issues.
The reliability of the final product is largely dependent on packaging as with increase in the density of the latter, there is bound to be thermal problems which affect the PCB in the whole. PCBs assembled using SMT are made of FR-4 Glass Epoxy Substrates which tend to react with ceramic packaging leading to reliability issues of the solder-joint. The CAD system is also something that needs to be considered while manufacturing SMT PCBs. Packaging moisture density, market requirements are other things which are looked into by designers before carrying out SMT assembly of PCBs.
Advantages of SMT PCB

Surface mount technology of PCB design and manufacture comes with a number of benefits making this method a more preferable one than the Through-hole one. The components of the SMT PCBs are much lighter in weight and consequently occupy much lesser space than the through-hole ones. Moreover, due to the attenuated space taken up by the components the cost for board also reduces considerably thus leading to overall saving.
To hire a contract manufacturer with expertise in manufacturing SMT PCB assembly, Denis Ferranti can prove to be a trustworthy name. To browse through our company profile log onto http://www.dferrantielectronics.co.uk/

Through Hole Versus Surface Mount PCB Assembly

admin — Wed, 27 Feb 2013 11:00:28 +0000

While enlightening yourself about the fundamentals of Electronic and Electromechanical Assembly, you need to understand the basics of two of the most important technologies- that of Surface Mount and Through Hole. The two are methods of performing Printed Circuit Board Assemblies and are largely performed by contract PCB assembly companies. Take a look at the discussion concerning the two.
Through-Hole Technology
Through-hole technology of PCB Assembly embraces drilling of the components into the Printed Circuit Board through holes by using lead. It is followed by a soldering process, through manual or automated insertion by machines.

Surface Mount PCB Assembly
The Surface Mount technology involves the intricate soldering of the PCB by mounting the components atop the board. The PCB in Surface-Mount technology comprises solder copper pads or flat pads plated with tin, lead or gold which come without holes. Reputed contract electronic manufacturers like Denis Ferranti use solder pastes and fluxes which are soluble in water in order to attenuate the efforts of the residue cleaning.

Advantages of Surface Mount over Through-Hole
The advent of the Surface Mount PCB Assembly technology has brought forth many benefits with relation to cost and design of the Printed Circuit Boards and is thus replacing Through-hole technologies in most electronic manufacturing companies. One of the main advantages with the Surface-Mount technology is the small size of the components with density higher than their through-hole counterparts. The small size of the components makes them take up smaller areas or spaces on the PCBs which also leads to considerable cost-cutting. The weight of the SMT components has been found to be about one-tenth of those for through-hole assembly. Surface mount leads to a considerable reduction of vibration, shock and electrical noise as well. Not to speak of the handsome reduction in costs which is brought about by way of manufacturing through use of lesser holes and smaller board, large volumes of production, lesser material handling and many more.

For optimum cost-savings as well as PCB Assembly of impeccable quality, visit Denis Ferranti at their official website at http://www.dferrantielectronics.co.uk/

The Rising Popularity of PCB Assembly

admin — Wed, 12 Dec 2012 04:55:02 +0000

Assembly services are gaining popularity. They were accepted quickly on inception and have been on a rise since then. Industries from different backgrounds search for assembling technology to satisfy their varied types of needs. Without any doubt, technologies have been improving every passing day, and so does the facilities. This has prompted manufacturers to offer advanced and comprehensive services to fulfil requirements of the customers, whether based in the country or abroad. Varied applications are available in the market that matches the diverse assembling requirements.

The surface mount PCB assembly service is generally needed for executing industrial functions. PCB stands for Printed Circuit Board. Reputed companies like Dferranti electronics provide these services that are competent, trustworthy, and within budget as well. Manufacturers around the world have been offering specialized surface mount services. They make available a highly efficient team comprising expert consultants that help clients make informed decisions. High Quality design is important in case of PCB assembly. It helps the clients arrive at advanced and fitting results. It serves as a crucial board for various electrical appliances, hence becomes very important. The entire performance of most of electrical appliances is dependent on PCB.

The assembly equipment of PCB is utilized in varied electronic assembling industries. The technology has become advanced with time, satisfying complex needs of customers around the world. Many companies offer turnkey solutions to customers, hence they require well-engineered PCB assembly. Only those manufacturers, who offer high-quality design, advanced fabrication and impeccable execution, are able to deliver demands of the customers perfectly. Every minute detail is considered, be it pre-engineering factors; post it, cost-efficiency, zero defects, etc.