Typy desek plošných spojů používaných v elektronických zařízeních

There are four main types of circuit boards used in electronic devices. These are Single sided, Multi-layer, Rigid flex, and Aluminum-backed. Depending on the type of device, the type of circuit board will be different. Listed below are the differences between these types of circuit boards.

Single-sided PCBs

Single-sided circuit boards have undergone many changes in recent years, including advancements in materials and production processes. These changes benefit single-sided circuit boards, which can often be more affordable than their dual-sided counterparts. Despite the advances in technology, one major concern for single-sided circuit boards remains their affordability.

Single-sided PCBs are a good option if your needs are simple and low-density. They can also be produced at high production speeds and with low lead times. However, they may not be suitable for complex projects. For this reason, it’s important to consider the project’s needs before purchasing single-sided PCBs.

One of the major downsides of single-sided PCBs is that they have fewer connections, which means they run slower and require more power than multi-layer boards. These single-sided boards also require more space to add new capabilities, which means they are not suitable for every application.

Multi-layer PCBs

Multi-layer circuit boards are a popular way to design electronic products. This type of circuit board offers superior performance and flexibility in design. It can also be made at a lower cost than other competing technologies. Its benefits are numerous and include high functionality, space efficiency, and reliability. Multi-layer PCBs are commonly used in all types of computer products.

Multi-layer circuit boards are more dense than double-sided boards, and feature multiple layers of substrate and insulating material. They are often made using surface-mount technology and through-hole technology. Many applications for these types of boards include satellite systems, weather analysis systems, GPS-driven devices, and data storage. Multi-layer boards are also compatible with a variety of electronic devices. The main difference between double-sided and multi-layer PCBs is their overall thickness.

Multi-layer PCBs are often smaller and lighter than single-sided PCBs. Because they contain more layers, they are more durable and can squeeze more functionality into a smaller space. Multi-layer PCBs require more planning and advanced production methods. However, they can be less expensive than single-sided boards.

Rigid flex PCBs

Rigid flex PCBs combine the advantages of both flex and rigid circuits to create a unique hybrid board. This type of board offers high component density, increased precision, reduced interconnects, and flexibility in packaging geometry. It is especially useful in medical, aerospace, and military applications, where space is limited. Rigid flex PCBs are also easy to test and are an ideal choice for prototyping.

The most common conductor material used in rigid-flex circuit assembly is copper. Copper has high electrical conductivity and is available in a wide range of thicknesses and weights. It is also subject to chemical treatment to enhance bond strength and reduce bond degradation. Various techniques are used to produce rigid flex PCBs, including electro-deposition and rolled-annealing. Rigid flex PCB design guidelines can help designers make a high-quality rigid flex PCB that meets their design criteria.

Pevné ohybové desky plošných spojů mají mnoho výhod, včetně nižších výrobních nákladů a vyšší spolehlivosti. Běžně se používají pro lékařské přístroje, systémy pro podávání léků a bezdrátové ovladače, stejně jako pro automobilové aplikace, chytrá zařízení a testovací zařízení. Tuhé flex PCB jsou také užitečné v leteckých a kosmických aplikacích.

DPS s hliníkovou podložkou

V porovnání s deskami plošných spojů se skleněnými vlákny nabízejí konstrukce desek plošných spojů s hliníkovou podložkou vyšší mechanickou stabilitu. Díky této vlastnosti jsou vhodnější pro aplikace, které vyžadují přísné rozměrové tolerance nebo vysoký tepelný rozptyl. Díky těmto výhodám jsou ideální pro různé aplikace. V tomto článku se budeme zabývat výhodami a nevýhodami desek plošných spojů s hliníkovou podložkou.

DPS s hliníkovou podložkou jsou stále oblíbenější díky své schopnosti účinně přenášet teplo. Díky tomu jsou vhodnější pro LED aplikace, protože lze zvýšit proudovou hustotu těchto zařízení bez obav z tepelného selhání. Tyto desky mají také nižší provozní teploty než běžné desky plošných spojů, což znamená, že mohou pracovat déle bez poškození.

Další výhodou desek plošných spojů s hliníkovou podložkou je jejich lehká, odolná a ekologická konstrukce. Lehký materiál funguje také jako uzemňovací vrstva a může odvádět teplo od některých komponent. Jejich výroba je však velmi nákladná. DPS s hliníkovou podložkou jsou obvykle jednostranné.