Industry Directory | Consultant / Service Provider / Distributor / Manufacturer / Other
Ludee Circuits offer RoHS PCB.We could offer leadfree HASL,Entek, flash gold, immersion gold, immersion silver, immersion tin finishing based on standard FR-4, CEM-3 materials, Teflon, Rogers RO4000 series, as well as high Tg S1170 materials.
Industry Directory | Manufacturer
We are a joint venture from China specializing in manufacturing and exporting PCB,multilayered circuit board,PCB fabrication,HDI PCB,PCB layout,quick turn,one-stop service,aluminum based pcb,flexible pcb.brand VGT
Precision wire cut machines keep the CNC precision working parts accurate according to your drawings. China Best Machined Co., ltd offer various heat treatment processes and metal finishing, chrome, nickel plating and anodizing inspection equipment
Industry Directory | Manufacturer
Konton, now, mainly supplies drill EDM, broken tap remover, drilling EDM, CNC EDM and super drill. Besides, We Sell Direct from Taiwan ONLY, NO Authorized Agents in China. Visit website to get more.
New Equipment | Assembly Services
25.0 um (>1mil) 6Max. Board Size: (580mm×1200mm) 7Min. Drilled Hole Size:4mil(0.1mm) 8Min. Line Width:3mil (0.075mm) 9Min. Line Spacing:3mil (0.075mm) 10Surface finishing:HASL / HASL lead free, HAL, Chemical tin, Chemical Gold, Immersion Silver/
Industry News | 2011-10-13 04:38:26.0
How are drilling and routing machines and equipment manufacturing companies performing? What strategies do they employ? What is the value of dual spindle technology and is it a global trend? To answer the third question, first you'll have to keep on reading about this fascinating technology which is becoming more and more important in the US, as well as in Asia.
Parts & Supplies | Repair/Rework
Repair parts include: CPU circuit board repair and maintenance of the I / O board, servo circuit board repair, the image processing circuit board repair, industrial CCD camera repair, frequency converter repair, PLC repair, touch screen repair, laser
CNC precision parts Precision CNC working parts China Best Machined Co., ltd is manufacturer of CNC precision parts and precision CNC working parts for a wide range of industries including aftermarket automotive, construction, aerospace, electroni
Technical Library | 2024-04-29 21:39:52.0
In this paper, we develop and put into practice an Automatic Optical Inspection (AOI) system based on machine vision to check the holes on a printed circuit board (PCB). We incorporate the hardware and software. For the hardware part, we combine a PC, the three-axis positioning system, a lighting device and CCD cameras. For the software part, we utilize image registration, image segmentation, drill numbering, drill contrast, and defect displays to achieve this system. Results indicated that an accuracy of 5µm could be achieved in errors of the PCB holes allowing comparisons to be made. This is significant in inspecting the missing, the multi-hole and the incorrect location of the holes. However, previous work only focusses on one or other feature of the holes. Our research is able to assess multiple features: missing holes, incorrectly located holes and excessive holes. Equally, our results could be displayed as a bar chart and target plot. This has not been achieved before. These displays help users analyze the causes of errors and immediately correct the problems. Additionally, this AOI system is valuable for checking a large number of holes and finding out the defective ones on a PCB. Meanwhile, we apply a 0.1mm image resolution which is better than others used in industry. We set a detecting standard based on 2mm diameter of circles to diagnose the quality of the holes within 10 seconds.
China Wrought Iron Forging Parts with Machining Service 1. ISO9001: 2000 certification 2. TUV (PED 97/23/EC & AD2000 a W0/TRD 100) certification 3. Professional OEM manufacturer 4. Process: Precision made. Experience & Reasonable QC that you can rep
.gif)
winsouce.jpg)