Shenzhen KKPCB Technology Co., Ltd. (KKPCB) is a professional PCB and PCBA manufacturer dedicated to providing one-stop electronic manufacturing solutions. Specializing in high-difficulty, small to medium batch PCB and PCBA production, we focus on delivering high-precision, high-reliability products with fast turnaround times to meet customers’ complex design and technical requirements.

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Contacts

05, 258 Shenshan Rd, Longdong Community, Baolong St, Longgang Dist, Shenzhen, China

+86-177-4855-1367

Engineering Technology
Double-layer PCB board

How to distinguish whether a PCB is single-layer or double-layer?

When discussing wiring-related technologies, two issues will be discussed: What if management cannot use a double-layer board or a ground plane, but still needs to reduce the noise in the circuit? And how to design the circuit to meet the ground plane requirements? Generally speaking, the solution is to tell management that a ground plane is necessary if reliable circuit performance is to be achieved. The main reason for using a ground plane is that the ground impedance is low and it can reduce EMI to a certain extent. But if cost constraints prevent users from achieving what they need, some suggestions provided in this article, such as star networks and correct current return paths, can also slightly reduce circuit noise.

PCB Manufacturing
rigid printing circuit board

What is the difference between flexible PCB and just scratching the printing circuit board?

Gangrou combined with print circuit boards allows you to have the advantages of both the beauty. The rigid soft combination of PCB combines the flexibility of the flexible circuit and the durability of the rigid PCB. Flexible printing circuit boards are only flexible materials, which are usually based on polyimide or polyester. They can be single, double or multi -layer boards. The rigid soft combination of PCB also uses flexible and rigid materials. The flexible layer is sandwiched between the rigid layer. The rigid layer has conductors and plating holes to connect the flexible layer to other layers.

PCB Manufacturing
high -frequency PCB

How to avoid radio frequency and microwave PCB design issues

RF and microwave signals are very sensitive to noise -much more sensitive than high -speed digital signals. This means that you need to minimize the noise, bell, and reflection, and at the same time be careful to deal with the entire system.
Returning the signal with the least inductance -the ground floor below the signal will be easier to ensure this path.
Discipline matching is important. With the rise of RF and microwave frequency, the tolerance will become smaller. Generally, the PCB drive needs to be fixed, such as 50 ohms, which means that during the transmission and sending to the receiver, the drive outputs 50 ohms.
The transmission line that is curved due to wiring restrictions should use a curved radius that is at least three times larger than the central conductor width. This will minimize characteristic impedance.
It is necessary to minimize the return loss, whether it is reflected by the signal or the bell. There will always be a return path, but your design should guide it and prevent the return from multi -layer leakage through the PCB.

PCB Assembly
PCB Stackup

About PCB Layer Stackup

PCB layering or stacking is a way of stacking multiple printed circuit boards together while ensuring that there are predefined interconnections between them, allowing multiple printed circuit boards to be installed in the same device. These multi-layer PCBs can multiply the speed and functionality of a device and are composed of at least three conductive layers, with the bottom layer being composited with an insulating board

PCB Manufacturing
Aluminum PCB Layers

Advantages of Using Aluminum-Based PCBs

Each rigid and flexible printed circuit board (PCB) design is different and can be customized based on the purpose of the board. The same is true for the PCB substrate – fiberglass is a commonly used substrate, but aluminum-based PCBs are also very effective in many industrial applications. Aluminum-based PCBs consist of a metal-based, copper-clad laminate that provides high performance, including excellent electrical insulation and thermal conductivity.

PCB Manufacturing
PCB Layer Stackup

About PCB Layer Stackup

PCB layering or stacking is a way of stacking multiple printed circuit boards together while ensuring that there are predefined interconnections between them, allowing multiple printed circuit boards to be installed in the same device. These multi-layer PCBs can multiply the speed and functionality of a device and are composed of at least three conductive layers, with the bottom layer being composited with an insulating board.