The strength or rigidity of the printed circuit board comes from the core and the substrate. The materials of substrate are usually aluminum or glass fiber and the core is basically epoxy-reinforced fiberglass cloth. The manufacturer glues thin copper foil on the top or both sides of the core to form a copper cladding. The single layer PCB has only one layer of copper, while the double-sided layer PCB is covered with copper on both sides. The copper layer will be covered with a layer of solder mask to prevent oxidation of the copper. Different substrates constitute different PCB types, such as aluminum PCB or LED PCB, MCPCB, high TG PCB, FR-4 PCB, Heavy Copper pcb, CEM-3 PCB, etc. JHDPCB has established long-term cooperative relations with many well-known CCL factories, can produce various types of PCBs. For specific CCL types available, please refer to “CCL that JHDPCB can provide”
What are the advantages of Single & Double-layer PCBs?
Easily Design and Production: Single-layer PCB & Double-layer PCB are relatively simple and are also very common, which means most designers can easily design them, and most manufacturers can produce them without problem. The design and production processes will be easy compared to advanced printed circuit boards(means Multilayer PCB,HDI PCB and etc.)
Lower cost: Because single & double-layer PCBs are simple. They require fewer resources, less time and less expertise to design and produce. This makes them less expensive. Therefore, lower cost is one of Single & Double-layer PCBs significant benefits, especially for high volume orders. JHDPCB can provide our customers with competitive prices through large-scale mass production.
Faster Lead Times: With their simple and uncomplicated construction, single & double-layer PCBs are easy to fabricate.We can deliver within a week even for very large orders. For some very urgent small batch orders, we can deliver in one day.You can visit our Our Standard Build Time for reference.
More alternative PCB Materials: There are more alternative PCB materials for single & double-layer PCBs. Such as FR1,FR-4, Aluminium,CEM1,CEM3. The customers can choose the material according to their needs and budget.
What Types Of PCB Packages Are There?
According to application requirements, pcb package are classified into various types. Before choosing a PCB, you must consider considerations including required space, stress handling, mechanical, electrical stability and so on.
Common PCB package types are divided into the following: SMT, PGA, DIP, LCC, BGA, QFN package, QFP package, TSOP, CSP package.
One method of mounting electronic components directly to the surface of a printed circuit board is surface mount technology(SMT). This method has largely replaced the through-hole technology construction of assembled components in the industry. SMT can improve manufacturing automation, thereby reducing costs, and improving quality is the main reason.It also allows more components to be mounted on a given substrate area, allowing both technologies to be used on the same board. However, in large transformers and thermal power semiconductors that are not suitable for surface mount components, we usually use through-hole technology.
SMD components are generally smaller than through-hole components because they have smaller leads or none. It may have various styles of short pins or leads, flat electrical contacts, solder ball (BGA) matrix, or termination on the component body.
A pin grid array (PGA) is one of many integrated circuit packages. In a PGA package, the pins are usually arranged in a square or rectangular pattern on the bottom of the package in a regular array. These pins are typically 2.54 mm (0.1 in) pitch, and the entire bottom surface of the package can be optionally covered or uncovered.
On a printed circuit board or plugged into a socket, PGAs are typically mounted using the through-hole method. Compared with the old package, PGA allows more pins per integrated circuit.
A type of surface mount device (SMD) component without leads is called a ball grid array integrated circuit. This SMD package uses a set of metal balls made of solder, called solder balls, for connection to a PCB (printed circuit board). These solder balls are attached to the laminate substrate on the bottom of the package.