Printed Circuit Board Words

PCB Protype, MOQ 1PCS, Delivery time fastest 1day

   CNC drilling, cutting edge, light painting, etching production process, only for less demanding customers, providing fast, cheap proofing services. No drilling metal plating, no character screen (single layer PCB can be printed in black silkscreen ), solder green oil, only suitable for the experiment, manual welding, can also be used to check for errors before production. Because no drilling metal plating, double panel vias problem Check "vias solution", or modify files, avoiding component pins and vias, shop may be able to modify the file, because vias can resolve threading welded at both ends, but if the pin element and vias, there may be elements blocked welding end less, so to avoid component pins and vias; pad line to be set a little rough, welding is best to use low-temperature solder (shop for sale ). Recommended not to do, of course, if a lot of your money, we do not oppose the demanding user is recommended to do the whole process. 16:30 hours before delivery traded at 22:00, 16:30, if the transaction had to be postponed until 22:00 the next day will delivery. Do not take different type in a panel.

Technical indicators are as follows:
Layers (maximum) 1-30
Panel type FR-4
The maximum size of 500mm X1100mm
Accuracy ± 0.2mm Dimensions
Thickness range of 0.40mm - 2.4mm
Thickness tolerances (t ≥ 0.8mm) ± 10%
Thickness tolerances (t <0.8mm) ± 10%
Media thickness 0.075mm - 5.00mm
The minimum width 6mil
Minimum spacing 6mil
35um thick outer layer of copper
Inner copper thickness 17um - 100um
Drilling aperture (ROP) 0.3mm - 6.35mm
Into the hole diameter (drilling) 0.3mm - 6.30mm
Diameter tolerance (ROP) 0.08mm
Diameter tolerance (ROP) 0.09mm
Thickness aperture ratio 8: 1
Solder type photographic ink
The minimum width of 0.1mm solder bridge

Sophie Deng
_______________________________________
Wonderful PCB Limited
NO.32A,Building NO.1, XianDaiC hengHuaTing,ChuangYeRoad|NanShan District,ShenZhen City 518054|  China  T +86-755-86229518-806 | F  +86 755 2607 3529|  e  wonderful08@wonderfulpcb.com |
w  www.wonderfulpcb.com  | Skype:wonderful-07   |                                                   
Welcome to our trading shows:
1.Booth: L32,Expo Electronic 2013,Apr.10-12th in CROCUS EXPO,Moscow,Russia
2.Booth: 11J36, HK Global sources  Apr.12-15th, 2013 Asia World-Expo, Hong Kong
3.Booth: 9J35, HK Global sources Oct.12-15th,2013 Asia World-Expo, Hong Kong
4.Booth: 70206, CES  2014  Jan,8th-11th in Las Vegas, USA

PCB industry supplied by evergrande mode evolution continues to advance

1. PCB industry supplied by evergrande mode evolution continues to advance

Recently, the manufacturers of printed circuit board (PCB) TTMTechnologies, about $368 million in all acquisition huia group (Via systems) jointly create news of the kingdom of PCB manufacturing is terminal operators know, maybe 1 + 1 > 2 is the reason that the two bosses concern, integration of resources has become a popular vocabulary in this industry, however, whether this big mergers or through expansion of production capacity, we can't send out, PCB industries concurrently evergrande mode evolution is still in advance.

2. Taiwan PCB factory output value to achieve high growth strive to surpass Japan and South Korea this year

According to the personage inside course of study says, Taiwan PCB manufacturers TPT, plans to increase production to 150 square feet in 2014.The global notebook motherboard market share of 20% in 2013, plans this year to 25%.
Printed circuit board (PCB) industry is one of the earliest development of electronics industry in Taiwan, the history of more than 40 years, over the past few years a lot of the decline in PCB industry because of the PC industry, after 2008, wash dish and turn into the new electronic products such as mobile phone, tablet, plus international paper, several PCB industry to become the market this year big dark horse, including hin hing, clever, songstress China turn into profit, like electricity, etc, to say goodbye.
Engineering institute estimates, 2014 Taiwan PCB industry output growth of 2.66%, 533 billion Yuan on the output, and break the past three years, only about 1% of the low growth. Institute will MIC, high on the top three global PCB industry in Taiwan, output value of more is equal with Japan in recent years, surpassed Japan for the first time in 2011 in Taiwan, Taiwan industry output value accounted for 31%, Japan (29%), with their close HDI production line, Samsung important PCB supplier DAP in March, the fire supply tight, apple with the apple camp positive transfer list for Taiwan factory.

Single Layer PCB

Single-sided printed circuit board is in the early 1950s with the emergence of the transistor, developed by the United States as the center of the product, which were mainly copper production methods to direct etching method for the mainstream. From 1953 to 1955, Japan's imports of copper for the first time made ​​use of paper phenol copper foil substrate, and a large number of applications on the radio on. In 1956, Japan's professional circuit board manufacturer appears, and then a single panel manufacturing technology progresses rapidly. In material terms, early in paper phenol copper foil substrate mainly because of the phenol material was low electrical insulation, heat resistance welding, twisting and other factors, there is another paper ring gas resin, fiberglass epoxy resin and other materials to be development, the current consumer electronic equipment required for single-sided, almost phenol substrates using paper plates.

Printed circuit board with copper on only one side. Generally with the through-hole technology, the copper in the solder side, opposite to any component placement. All through holes will be Non-plated. Pad should be large enough to provide mechanical support part of the leadership. Pad is too small can be easily torn from the PCB board. And the copper layer surface mount technology components, or areas where the top plate.

In order to avoid your work was shelved, use a text label your copper layer. This simple addition will avoid confusion about orientation of the copper and drill files. If you are in the component side copper layer, and the assembly on the top of the board design, the text should be the correct reading. If the copper layer is the bottom, opposite your component, the text should leave the reading (reversed) looked through the plate.

PCB design & shape affect warpage of manufacturability

1.Design principles shape：
    PCB design for the general shape of the aspect ratio is not too large rectangle, large aspect ratio, or a larger area of the board, prone to warpage. Larger board can save material, but because the quality of warping and other factors make it in the production and transportation are more difficult and require special fixtures fixed, so in principle the use of more than 23cm × 30cm board; for SMD SMB PCB components, for its size, thickness, chamfer around and around vertical and parallel precision, require more stringent. This is because of the different sizes and types of placement machines to the specific requirements of the SMB will be slightly different, SMB's size is too large or too small, the board can not Mounter well fixed, this will placement accuracy, speed, welding quality adversely affected, causing problems in manufacturing; and in severe cases can lead to the production of SMB can not be processed with automatic placement equipment.

2. PCB warpage requirements
    PCB size is too large, in addition to increasing the production and transportation of inconvenience outside automated insertion line, if the PCB level, can cause inaccurate positioning, components can not be inserted into the hole and surface mounted stick-chip board on the plate, and even crashed inserted automatically installed. Loaded on board after soldering components bending element foot is difficult to cut flat tidy. The board can not be fitted into the socket on the chassis or inside. At present, the PCB has entered into the era of surface mount and chip installation, assembly plant on the warping degree requirements must be more strict. Because for PCB warpage is not serious, the use of plug-in components when you can rely on to overcome part of the deformation component leads; and PCB warpage to mount components, since no lead, only to rely on the element itself adaptation, which can cause cell rupture, welding unreliable and other issues.
    Rigid PCB, the PCB surface mounting for maximum allowable warpage and distortion of 0.75%, 1.5% allow various other boards. For 1.6mm thickness PCB, double-sided or multilayer regardless, warpage is usually 0.70 to 0.75%, many SMT, BGA board required is 0.5%. Warpage test method is to put on the PCB by the test platform to test the needle into the largest local warping to the length of the test needle diameter, divided by the curved edge of the PCB can be calculated the warping of the PCB.