Alkaline etching solution for circuit boards, also known as passivation solution, is one of the widely used chemical etching solutions in the electronics industry for removing unwanted copper materials from circuit boards, and then generating a protective layer on the surface to protect the circuits on the boards from corrosion. The principle of action of […]
PCB board copper thicknesses are generally classified as 1oz (35μm), 2oz (70μm) and 3oz (105μm). Of course, the copper thickness depends on the type of board you are making. Copper thickness for switching power supplies with high currents is 2oz. for signal transmission, usually, 1oz is sufficient. Normal double-sided boards are 1oz. Multilayer circuit boards
Bluetooth Data Module is a PCBA board with integrated Bluetooth functionality for short-range wireless communication. By integrating the chip and peripheral hardware circuits onto the PCB and developing inbuilt programs to implement the Bluetooth function, the module is capable of data transmission and networking with MCU controlled devices. It is widely used in the fields
What is semiconductor packaging? Semiconductor Packaging is the process of processing a tested wafer into an individual chip according to the product model and functional requirements. The purpose of traditional packaging is to fix, lead and seal the cut chip, but with the advent of the post-Moore’s Law era, more and more steps that need
HDI PCB definition, High Density Interconnect Board, is a circuit board with high line distribution density using micro-blind/buried hole technology. It is able to achieve higher line density and finer wiring in limited space to meet the demand for miniaturisation, high performance and high reliability of modern electronic products. In the field of pcb board,
On a circuit board, RT usually stands for Thermistor, a component that is extremely sensitive to temperature. The resistance value of a thermistor changes significantly with temperature, so by measuring its resistance value, we can accurately deduce the current ambient temperature. This characteristic makes thermistors play a vital role in circuit functions such as temperature
PCB test points may look like just some pads or exposed copper skins, but their role in the entire production, debugging, testing and repair process is very critical. If the test points are not reasonably arranged, it will lead to difficult to test the circuit board, debugging time becomes longer, the difficulty of rework increases,
A transparent flexible PCB is a pcb board that can be bent and has a certain degree of flexibility without affecting its functionality. It is made of flexible materials such as polyimide or polyester film, allowing for compact circuit connections in a given space. Transparent flex pcb is lightweight and durable. It is this property
FPC flexible circuit board is widely used in modern electronic products due to their thin, lightweight and bendable characteristics. However, its unique physical properties also bring many challenges to the welding process, requiring fine process control and specialised coping strategies. Flexible circuit boards in the welding process should pay attention to: Quality inspection is a
In the production of flex board, material deformation and delamination are important factors affecting product quality. In order to avoid such problems, the following detailed coping strategies can be adopted: Substrate selectionThe choice of material directly determines the basic bending performance of flex board. In terms of substrates, polyimide (PI) and polyester (PET) are commonly
High speed digital pcb is circuit boards that can support high speed digital signal transmission, and are usually used in scenarios where the frequency of digital logic circuits reaches or exceeds 45MHz-50MHz, or where the delay of digital signals in circuits on the transmission line is greater than 1/2 rise time. Compared to traditional analogue
Leadless chip carrier refers to a chip substrate material that does not contain lead. Traditional chip carriers often use leaded materials because leaded materials have high plasticity and are easy to process during manufacturing, but leaded chips are harmful to the environment and the human body. Leadless chip carrier is widely used in the manufacture
PCB board assembly processing, there may be a variety of defects, these defects can be categorised as the following major aspects, designed to improve product quality and reduce the defective rate. Welding defectsWelding is a key part of PCB board assembly processing, common welding defects include: False soldering (Dry Joints/Cold Solder): refers to incomplete solder
Ceramic substrate in accordance with the process points there are many kinds of, in addition to direct bonding copper (DBC) method, direct copper plating (DPC) method, laser activated metal (LAM) method, low-temperature co-fired ceramics (LTCC), high-temperature co-fired ceramics (HTCC) in addition to the AMB method of the technology that currently attracts much attention, that is,
What is a chipset? A chipset is a processor that consists of multiple chips. Each chip in a chipset may be produced by a different manufacturer. These individual chipsets are combined together to form a processor using a complex connection system. Chipset processors can take advantage of the latest chip manufacturing technology to reduce the
Ceramic substrates and PCBs play an important role in the electronics industry, each with unique material properties, manufacturing processes and application areas. Ceramic substrate is a ceramic material made of electronic substrates, belonging to the inorganic materials, usually with alumina (Al2O3), aluminium nitride (AlN) and silicon nitride (Si3N4) as the main component, ceramic substrate has
What is dual inline package? Dual inline package (DIP) is a type of integrated circuit package whose main feature is that the integrated circuit chip is mounted on two parallel rows of metal pins. This type of package is simple, easy to produce and maintain, so it is widely used in the electronics industry. Dual
The ball grid array socket is an adapter that allows for pluggable mounting without directly soldering BGA-packaged integrated circuits (ICs) to the test substrate. By connecting the solder balls of the IC to the pads of the test substrate via the BGA socket, the risk of poor contact (e.g. open or short circuit) and IC
The design layout of a camera pcb board is a central aspect of ensuring camera performance, reliability and stability. An optimised layout can effectively reduce signal interference, improve signal integrity, and improve thermal management. Camera PCB Board Wiring GuideThe LVCMOS signal alignment needs to be away from the differential lines to prevent the LVCMOS line
The camera motherboard, also called the camera pcb board, is one of the core components inside the camera and contains the camera’s processor. Memory. Interface chip. Sensor control chip and other important components. The role of the camera motherboard is to control and manage the various functions and operations of the camera, so that the
Hybrid Bonding is an advanced IC packaging technology used to achieve high-density, high-performance interconnections between different chips. The key feature of this technology is to replace the traditional bump or solder ball (bump) interconnections with direct copper-to-copper connections, which enables ultra-fine pitch stacking and packaging in a very small space for the purpose of three-dimensional
Hybrid bonding is an emerging packaging technology that combines the features of inter-chip bonding and intra-chip bonding. It utilises different bonding techniques to achieve interconnections between wafers and package substrates or within wafers to meet the needs of high-performance integrated circuits with complex interconnect structures. There are two common types of hybrid bonding: W2W can
FPC Bonding (Flexible Printed Circuit Board Bonding) is a technology that electrically and mechanically connects flexible circuit boards (FPC/FPCB) to other electronic components, rigid circuit boards (PCBs), or components such as displays through a specific process. This process is widely used in consumer electronics (e.g., mobile phones, tablets, wearable devices), automotive electronics, and medical devices
Differential signal line is mainly the difference between the traditional signal line corresponds to a ground line signal transmission mode, differential signal transmission is mainly two lines on the signal transmission, the two signals are equal in amplitude and opposite in phase. Relative to the traditional single-ended signal, it has a strong anti-jamming, can effectively
