When it comes to the design and development of printed circuit board manufacturing, there are three primary types of construction. A printed circuit board (PCB) is a self-contained module of interconnected components. They are used in a wide range of different devices, from sophisticated computer systems to home electronics, beepers or pagers, and military radar devices.
The circuits that are used are formed with a thin layer of conducting material that is deposited onto the surface. The method for depositing is known as “printing,” hence the term printed circuit board manufacturing; and the board itself is made of a substrate that can vary, depending on the need of the finished product. In-circuit test fixture and automated test equipment solutions can be used to verify the performance of the finished PCB.
How It Works
A printed circuit board may have a variety of different circuits designed to perform a single function or multiple functions, depending on the industry and demands of the project. The three types of printed circuit board construction include single-sided, double-sided, and multi-layered. When it comes to the single-sided boards, the construction involves components that are attached to just one side of the substrate. If the number of components required exceeds the space available on the single-sided circuit board, a double-sided printed circuit board manufacturing will be used.
The electronic connections that are made between the circuits on each side of the double-sided printed circuit board are made by drilling holes through the substrate layer in the right locations. As you might have guessed, the multi-layered approach includes a substrate that is made up of various layers of PCBs that are separated by layers of insulation. Once again, the components on the surface are connected by drilling plated holes to the appropriate circuit layer to simplify the circuit pattern and simplify custom wiring for the finished product.
Connecting the Circuits
The methods used to electrically connect the components on the printed circuit board include through-hole technology (TH) and surface mount technology (SMT). The newest method is SMT, which has many advantages over the old TH options. In through hole technology, each component in the product uses thin wires or leads, which are pushed through small holes in the substrate. The wires are then soldered to the connection pads on the opposite side to ensure a proper connection.
Surface mount technology is a bit different. Legs that are either J-shaped or L-shaped are fitted on each component contact to connect the printed circuits directly. Soldering paste, which consists of glue, solder, and flux, is applied at the point of contact to hold everything in place until the printed circuit board manufacturing is finished and the final connection is made. While greater care is required to ensure the placement of components using surface mount technology, many time-consuming processes are eliminated, such as drilling and the use of connection pads, which can take up a lot of space.
Testing Printed Circuit Board Manufacturing
The electronic test industry has created functional test solutions to ensure that the printed circuit board manufacturing is done correctly to ensure quality performance. Whether you design and manufacture your printed circuit boards in-house or source them from another manufacturer, it is important to use automated test equipment, functional testing solutions, in-circuit test fixture and other methods to assure the quality of custom wiring.
EMC Technologies offers full in-house machining and metal fabricating services, as well as PCB design services and manufacturing. We can accommodate requirements ranging from simple double-sided designs to complex multi-layer designs to meet or exceed the demands of our clients. We can accomplish printed circuit board design directly from the customer’s requirements or develop solutions entirely here at EMC. Our team of highly trained, experienced and skilled engineers utilizes the design and manufacture of PCBs as an integral component of the interface test adapter to provide the client with many advantages.
Interested in learning more about our services? Give us a call at 508-672-0808 to speak with a representative about your needs for printed circuit board and custom wiring solutions. We are ISO 9001: 2015 Certified and ITAR registered to provide you with comprehensive services that will meet or exceed your expectations for automated test equipment and PCB manufacturing.