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Volume 2, Number 3, November 2002
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This article describes how rapid technological change in the circuit board fabrication industry has affected the through-hole drilling process. The choice of drill bit, entry material and backup material directly affects the through-hole quality of a circuit board. By selecting the optimal combination for your application, your circuit board fabricator can meet the technology, quality and cost requirements of your product. |
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A surface finish is used to protect a circuit board’s copper pads and exposed traces between the time the board is manufactured and when it is assembled, ensuring solderability during the assembly process. This article compares the application, effectiveness and cost of the three most common surface finish processes—hot air solder level (HASL), immersion precious metal plating and organic surface protectant (OSP) coating. |
The use of Automated Optical Inspection (AOI) systems is a very efficient method for supplementing process control and improving quality levels. This article provides guidelines for selecting the AOI system best suited to identify and remedy problems with your company’s manufacturing process. It also describes the advantages of laser-based systems for performing automated optical inspection of component placement on circuit boards. |
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A different PCB industry certification is reviewed in every issue of our newsletter. dsi ’s dedication to serving the medical device manufacturing industry is evidenced by its compliance with the comprehensive requirements of the FDA’s Current Good Manufacturing Practice (CGMP). A different PCB industry certification is reviewed in every issue of our newsletter. dsi ’s dedication to serving the medical device manufacturing industry is evidenced by its compliance with the comprehensive requirements of the FDA’s Current Good Manufacturing Practice (CGMP). |
Stanley Bentley, President of dsi, describes the steps dsi has taken to position itself not only to weather the current economy, but to respond rapidly when the expected turnaround comes. dsi is taking advantage of its cash flow position and investing in infrastructure to improve its technology, efficiency and speed. |
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Printer-Friendly Version Displays all articles in a format ready for printing. |
PDF Version Requires Acrobat Reader to view. |
| Resources
and References
Article symbols, a glossary of acronyms and abbreviations, industry links, and a Tech Tips archive all increase your PCB knowledge. |
Article
Index Lists current and archived articles. |
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| The dsi Quarterly Tech Review © is a quarterly publication of Diversified Systems, Inc. |  |
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