... a number of operational hours. An electrical test is needed to check the actual functions of a PCB. It is an essential if inner | PCB FABRICATORS | layers need to be tested, as is the case with multi-layers. In two position measure-ments all connections in the PCB are checked for stoppages and | PCB FABRICATORS | short circuits. All SMD pads and plated through holes are checked. The electrical test can be conducted as a parallel or finger test. Parallel test: | PCB FABRICATORS | For the parallel test a control adaptor is constructed, consisting, e.g. of several synthetic sheets positioned above each other and fitted with control pins. An | PCB FABRICATORS | adaptor programme must be written to reflect the actual holes in each individual synthetic layer of the adaptor. The pin positions are identical to the | PCB FABRICATORS | control points enabling an overall PCB test within seconds. The control adaptors are all the more expensive the higher the density and the lower the | PCB FABRICATORS | grid distances between control points. The adaptors can also only be used for one specific type of PCB ...
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... located near the panels.The imaging process is carried out in a controlled environment to minimise the effects of temperature and humidity variation and maximise | PCB FABRICATORS | the yield of quality product. After exposure, the panel is ejected from the exposure system and loaded onto an accumulator. Developing Image After the panel | PCB FABRICATORS | has been exposed, it is finally developed to remove all areas of unexposed resist. The chemistry in the developer is controlled by an automatic replenishment | PCB FABRICATORS | system. This fully automatic system assures consistent and uniform development and eliminates down time for cleaning and replacement of the chemistry. The copper tracks and | PCB FABRICATORS | pads thus defined are then ready for the electrolytic plating process or for etching. Remaining resist acts as an etchant barrier. Following development, all panels | PCB FABRICATORS | pass through Automatic Optical Inspection (AOI). This inspection stage is to verify that all the design features are in accordance with customer requirements. The final ...
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... of your order, we record it in order to enable you to monitor the current status of your order , as well as to | PCB FABRICATORS | facilitate follow-up orders and easy access to information and offers. | CAN A CUSTOMER SEE HIS RECORDED DATA? | Yes. The recorded data can be | PCB FABRICATORS | called up at any time by selecting "shopping basket" from the menu, "my orders" and "history". It is also possible to update the data there | PCB FABRICATORS | in order to prevent any delivery difficulties. We will, of course, also provide you with information regarding your customer data by telephone or email. | | PCB FABRICATORS | WHICH SECURITY MEASURES ARE IN PLACE TO PROTECT OUR DATA? | Protection of all personal data which we receive from visitors to our web site | PCB FABRICATORS | and from our customers is a vital element of our company philosophy. We assure you that our security measures protect your personal data from loss, | PCB FABRICATORS | misuse or alteration. | AS IS THE CASE | with all transfers via the internet, there is however always a remaining risk, also when sending | PCB FABRICATORS | personal data. ...
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