Andy

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So far Andy Liu has created 155 blog entries.

What are the advantages of HDI PCB technology-Hitech PCB

HDI stands for High Density Interconnector. A circuit board which has a higher wiring density per unit area as opposed to conventional board is called as HDI PCB. HDI PCBs have finer spaces and lines, minor vias and capture pads and higher connection pad density. It is helpful in enhancing electrical performance and reduction in weight and size of the equipment. HDI PCB is the better option for high-layer count and costly laminated boards.   Following is the advantages for the HDI PCB. This technology allows future components, that are becoming smaller, to be used on a wider scale. Electrical [...]

2019-11-01T15:17:39+00:00Categories: PCB knowledge|Tags: |

Difference between Copper PCB and Standard PCB

Standard PCBѕ uѕе a diеlесtriс and сорреr аѕ thеir mоѕt рrоminеnt mеtаl соnѕiѕt of different lауеrѕ оf material. They fеаturе a ѕubѕtrаtе, оr bаѕе, made frоm fiberglass, роlуmеrѕ, ceramic or аnоthеr nоn-mеtаl соrе. Mаnу оf thеѕе PCBѕ uѕе FR-4 for thе substrate. Thiѕ fibеrglаѕѕ mаtеriаl has a rеlаtivеlу affordable price аnd mоdеrаtе durability. Additiоnаl layers of copper, ѕоldеr mаѕk and ѕilkѕсrееn make the bоаrd conductive and outline соmроnеnt lосаtiоnѕ. These lауеrѕ may appear оn оnе side оf thе bаѕе, both ѕidеѕ оr in a multilауеr stack up while сорреr PCB hаѕ a similar lауоut tо аnу other PCB. It hаѕ [...]

2019-10-24T10:57:23+00:00Categories: Blog|Tags: |

Printed Circuit Board industry accelerates transfer to China

The industry moves eastward and the mainland is unique. The focus of the PCB industry is constantly shifting to the Asian region, and Asia's production capacity is further transferred to the mainland, forming a new industrial structure. With the continuous transfer of production capacity, mainland China has become the region with the highest PCB production capacity in the world.   Applications such as data centers will increase HDI demand, and FPC will have broad prospects. Data centers are moving in the direction of high speed, high capacity, cloud computing and high performance, and construction demand is exploding. The demand for [...]

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 [...]

2019-10-12T11:20:12+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 [...]

2019-10-11T11:34:06+00:00Categories: Industry News|Tags: , , |

Automated Optical Inspection (AOI)

Automated Optical Inspection (AOI) is the automated visual inspection of a Printed Circuit Board (PCB) in which a camera is used to scan the board in extremely fine detail to check for any defects or failures. So why is AOI so important? Assuming your PCB design is correct, if you assemble the right parts in the right place then your product will work. In production, this means putting a lot of focus on detecting and correcting any manufacturing defects or Manufacturing Defects Analysis (MDA.) AOI is a vital inspection system which enables you to measure and monitor the quality of [...]

2019-09-19T17:32:04+00:00Categories: Blog|Tags: , , |

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, [...]

Medical main board PCB Assembly

Items Capability 1 PCB assembly min IC pitch 0.30mm (12mil) 2 PCB assembly foot pin SO, SOP, SOJ, TSOP, TSSOP, QFP, BGA and U-BGA 3 PCB assembly min chip placement 01005 4 PCB Assembly Max PCB Size 410 x 600mm (16.2 x 23.6″) 5 PCB assembly min PCB thickness 0.35mm (13.8mil) 6 PCB assembly maximum BGA size 74 x 74mm (2.9 x 2.9″) 7 PCB assembly BGA ball pitch 1-3mm (4-12mil) 8 PCB assembly BGA ball diameter 0.4-1mm (16-40mil) 9 PCB assembly QFP lead pitch 0.38-2.54mm (15-100mil) 10 PCB assembly packing Anti-static bubble bag and cartol For PCBA order, provide [...]

PCB Components Sourcing

PCB Components Sourcing Service With our PCB Assembly business expanding, we added comprehensive electronics components sourcing services to improve our PCB assembly production line efficiency, enable you more time on project engineering and designing. Our PCB Components Sourcing services consist of two options: • We purchase parts from leading authorized distributor of electronic components; • We purchase parts from your recommended channels; Note: No substitutions will be made without your approval. More than 10 years' experience in circuit assembly allows us to build strong cooperative relationship with authorized component distributors including Digi-Key, Mouser Electronics, Arrow Electronics, Avnet, etc. which makes it possible for us to get [...]

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 [...]