Andy

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So far Andy Liu has created 162 blog entries.

Flex Circuits Fit Where Cables Cannot

Flex printed circuits can provide several obvious advantages over conventional ribbon cables in certain applications. For example, a flex circuit can span between a board and a connector on a bulkhead several inches away at a right angle in the same plane as the board. That’s not feasible with a ribbon cable. A flex circuit can be formed in complex shapes in three dimensions with branches to multiple connectors, which would be impossible to achieve with a ribbon cable. Moreover, flex circuits can be interfaced with rigid boards without the relatively tall and bulky connectors flat cables require, or in [...]

2019-12-26T14:04:13+00:00Categories: Blog|Tags: , , |

Automated Optical Detector(AOI) For Printed Circuit Board

Printed circuit board (PCB) are substrates for assembling electronic components. The manufacturing quality of PCB directly affects the reliability of electronic products. Therefore, PCB are known as the "mother of the modern electronics industry." With the in-depth development of electronic assembly toward higher-density, smaller-sized PCB hybrid technology, relying only on traditional functional testing and manual visual inspection and inspection methods, it has been unable to meet the needs of modern PCB industry's large-scale production. At present, the primary yield of general PCB is still hovering between 60% and 70%. In order to reduce the number of defective circuit boards that [...]

Why Use Reflow Soldering?

Reflow soldering allows for the simultaneous processing of multiple connections. This prevents the disconnection of wires while you are soldering their neighboring wires. Reflow Soldering also improves the quality of resulting PCB and offers many other benefits such as, Improved wettability of solder joints and surface mounted components. Improved solderability of a large variety of electronic components. Enhanced joint integrity for crucial electronic applications. Reduced board discoloration. Elimination of charred flux residues on heating elements and boards. Reduced formation of white haze from the oxidation of rosin or tin flux Optimized performance of low-residue and no-clean pastes. Enhanced flexibility of [...]

2019-12-06T10:48:49+00:00Categories: PCB Assembly, PCB News|Tags: , , , |

How to Decrease the PCB Assembly Cost

With improving technologies, the cost of every production is increasing. Profit margins are being raised. When you look for quality products for your application, the costs are likely to be even higher. But, you obviously want to reduce spending on your expenses, without compromising on the quality. Is that even possible? Electronics companies are always facing issues while attempting to cut down costs as the technology is constantly changing. Electronic devices are always evolving into more and more complex products, in order to meet consumer demands. This is why technology companies are evolving to find new processes for developing products [...]

2019-12-06T10:45:18+00:00Categories: PCB Assembly, PCB News|Tags: , , |

Specifications for the manufacture of aluminum base PCB

The aluminum boards produced by PCB manufacturers are mostly used for LED lamps. What are the specifications for the production of aluminum base board in the production process? Aluminum boards produced by aluminum board manufacturers are often used in power devices, and the power density is large, so the copper foil is relatively thick. If a 3 oz or more copper foil  is used, the etching process of the thick copper foil requires engineering line width compensation, otherwise, the line width after etching will be excessive. The surface of the aluminum boards produced by the aluminum board manufacturer must be protected with a protective [...]

2019-11-30T11:18:47+00:00Categories: PCB knowledge|

5 Questions to Ask PCB Manufacturer

With so many PCB manufacturers to choose from, it's easy to feel overwhelmed with picking the right one. This may come as a surprise, but not all PCB manufacturers are created equal.  In fact, by asking these questions before you choose a PCB manufacturer, you'll get to see firsthand how some manufacturers simply don't measure up to others. 1.How many years have you been in business? When it comes to manufacturing circuit boards, experience is everything. This question not only sheds light on a manufacturer's competence, but also their ability to constantly adapt and innovate over time. 2.What are your certifications? Often times, PCB [...]

2019-11-20T09:53:33+00:00Categories: Blog|Tags: , |

The difference between Core and Prepreg

The Prepreg is an insulating material for the PCB. Prepreg is not prepreg before being laminated, also known as prepreg,prior to lamination, and is primarily used as a bonding material and an insulating material for the inner conductive pattern of a multilayer printed circuit board. After the Prepreg is laminated, the semi-cured epoxy is extruded, begins to flow and solidifies, bonds the multilayer sheets together and forms a reliable insulator.   The Core is the basic material for making printed circuit boards. The Core is also known as the core board, which has a certain hardness and thickness, as well [...]

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 [...]