PCB News︱Circuit board manufacturing︱PCB assembly

How to prevent your PCB from overheating

Green printed circuit board (PCB) Printed circuit board (PCB) materials are formulated to withstand a certain amount of heat. What happens when the temperatures rise beyond certain limits? Performance takes a nose dive, especially at higher frequencies. This is why cost-effective heat management is perhaps an engineer’s number-one priority. Of course, heat-tolerant PCB materials and carefully designed circuits can tolerate a certain amount of heat. First, the circuit designer should understand the different parameters of the materials’ behavior when temperatures rise. Heat comes from various sources Circuit boards are assembled in increasing density to make smaller, lighter designs. A [...]

Andy Liu2019-10-12T11:20:12+00:00Categories: PCB News|

SMT Processing / Patch Processing Basic Process Elements

The basic process elements of smt processing / patch processing: Silk Screen (or Dispensing) --> Mounting --> (Curing) --> Reflow Soldering --> Cleaning --> Testing --> Rework Silk screen: Its function is to print solder paste or patch glue on the pad of PCB to prepare for soldering of components. The equipment used is a screen printing machine (screen printer), located at the forefront of the SMT production line. Dispensing: It is a glue that drops the glue to a fixed position on the PCB. Its main function is to fix the components to the PCB. The equipment used is [...]

Andy Liu2019-10-11T11:34:06+00:00Categories: Industry News|Tags: PCB, PCBA, SMT|

The role and difference of solder mask and solder paste layer

The impact of many projects on solder masks and solder layers is unclear. It is to open the window itself, but only provides the paste layer. There is no solder layer. Some board engineers don't look at the paste layer (note that this is used). This is a useless layer for the plant's engineers and can cause window leaks. The following is a brief introduction to their differences. The solder layer is used to control the area where the green oil (white oil) is not covered when the board is fabricated. For example, the position of the pad, [...]

Andy Liu2019-09-16T17:08:31+00:00Categories: Blog, PCB knowledge|Tags: Aluminum based PCB, electronic board assembly, fast pcb assembly, Flex printed circuit board, Heavy Copper PCB|

Who Can Benefit From Turnkey PCB Assembly Services?

Advantages of Full Turnkey PCB Assembly Services and Who Can Benefit From Turnkey PCB Assembly Services? • Shorter Lead Time As a fundamental form of electronic assembly, PCB assembly primarily contains three phases: PCB fabrication, components procurement and PCB assembly. Traditionally, you should quote and confirm design files with sales and engineers working for your PCB manufacturer, then components distributors and finally PCB assemblers. Such series of quotations and confirmations just need your time spent in contacting with different partners. If those partners are from different countries, you have to overcome some problems such as time zone, communication habits etc. Full-turnkey [...]

Andy Liu2019-09-07T11:10:43+00:00Categories: Blog, Company News, PCB knowledge|Tags: Electronics assembly manufacturing, Electronics components, PCBA Testing Service, Turnkey PCB Assembly|

How to Identify Circuit Board Electronics Components?

How to Identify Circuit Board Electronics Components? Start by identifying the printed circuit board, or PCB. This is the underlying rectangular chip or board, often in green or blue. This chip is covered in conductive pathways--little lines of metal that are actually printed on the board by another machine during production. Notice that each of these lines starts with a dot and is most likely labeled with a number. Though they are not wires, each of these connective lines works in the same manner as a wire to transmit independent lines of electricity. Identify other "nuts and bolts" electronic circuit [...]

Andy Liu2019-09-07T10:57:10+00:00Categories: Blog, PCB knowledge|Tags: Circuit board components, Electronics assembly manufacturing|

The differences between immersion gold and gold plating for bare PCB

Gold plating: Gold plating is a method of depositing a thin layer of gold onto the surface of another metal through plating way. The gold particles attached to the pcb, as strong adhesion also known as hard gold. The gold finger of memory bank is hard gold and abrasion resistant. Immersion gold: Immersion gold through chemical reaction to make gold particles attached to pcb. As weak adhesion it is also known as soft gold. Why use gold plating for some printed circuit board? As IC become more and more integrated and IC pins are also denser. This brings difficulty to [...]

Andy Liu2019-09-03T15:12:36+00:00Categories: Blog, PCB knowledge|Tags: Immersion gold PCB, printed circuit board|

BENEFITS OF CONFORMAL COATING FOR PCB& PCB Assembly

A conformal coating is defined as a thin layer of transparent plastic that "fits" the body of the PCB and component. By being breathable, it forms a protective layer that protects against particular environmental conditions, but also allows any moisture trapped in the board to escape. The conformal coating is a protective coating for printed circuit boards (PCBs). It protects PCB components from moisture, heat, cold, dust, smoke, weather changes and other environmental conditions that can affect PCB performance. The use of a conformal coating on the PCB reduces the need for repair or replacement of printed circuit boards, thereby reducing [...]

Andy Liu2019-09-03T14:35:20+00:00Categories: Blog, PCB knowledge|Tags: electronic pcb assembly, Electronics components, printed circuit board|

What Function Does PCB Board Offer for Electronic assembly manufacturing Products?

Whether PCB circuit boards, aluminum PCB or single-sided PCB，they all have a common name, that is a printed circuit board (PCB) or printed wireless board (PWB), then what function does PCB board offer for electronic assembly products. The function that PCB boards provide for electronic assembly products 1. Assurance integrated circuits and other electronic components fixed, and support mechanical assembly . 2. Ensure the quality of the electronic equipment, improve the labor productivity, reduce the cost and easy to maintenance. 3. Provide resistance welding graphics for automatic soldering，provide identification of characters and graphics for components instrumentation, inspection, maintenance. 4. Implementation electrical connections or [...]

Andy Liu2019-09-03T14:26:53+00:00Categories: Blog, Industry News|Tags: Electronic assembly, PCB boards, PCB circuit boards, printed circuit board, printed wireless board, PWB|

Five knowledge points of PCB Design technology–Hitech Circuits Co., Limited

1: Print line width selection: The minimum width of the printed line is related to the current flowing through the line: the line width is too small, the resistance of the printed line is large, and the voltage drop on the line is large, which affects the performance of the circuit. The width, the wiring density is not high, and the board area is increased. In addition to increasing the cost, it is not conducive to miniaturization. If the current load is calculated as 20A / mm 2 , when the thickness of the copper foil is 0.5MM (generally), the [...]

Andy Liu2019-09-03T14:20:55+00:00Categories: Blog, PCB knowledge|Tags: board assembly, circuit board assembly, electronic board assembly, electronic pcb assembly, Heavy Copper PCB, pcb design and manufacturing|

What is the difference between Rogers PCB and ordinary PCB?

Compare with ordinary PCB, Rogers PCB is widely used in high frequency and high reliability fields such as microwave communication, 5G, military radar, etc. Furthermore, Rogers PCB is a high-performance PCB, which means: 1.Good rigidity, mechanical and electrical properties, easy to hole metallization; 2.High precision of board thickness; 3.Awesome copper adhesion, high heat dissipation capacity, perfect peel strength, no layering and foam; 4.Be compatible with FR-4 processing technology except the higher cost of Rogers board itself. PS: Rogers PCB is the most stable material in the industry, with low dielectric loss and low water absorption. In addition, its dielectric constant (DK) is stable with [...]

Andy Liu2019-09-03T10:54:17+00:00Categories: Blog, PCB knowledge, PCB News|Tags: FR4 PCB, Rogers PCB|