Technical Library | 2019-08-19 09:46:13.0
Boundary scan is a method for testing interconnects on printed circuit boards (PCBs) or sub-blocks inside an integrated circuit. It has rapidly become the technology of choice for building reliable high technology electronic products with a high degree of testability. Due to the low-cost and integrated circuit (IC) level access capabilities of boundary scan, its use has expanded beyond traditional board test applications into product design and service.
Technical Library | 2019-10-16 10:20:25.0
A major goal of the development of advanced packaging technology is to reduce the size, weight, and power consumption of electronics components using state-of-the-art commercial technologies. One of the novel concepts involves the use of all three spatial dimensions when designing and producing new systems. In the past, electronic structures tended to be two dimensional in nature. Generally speaking, individually packaged integrated circuit (IC) dies were interconnected on printed circuit boards. Techniques such as die and package stacking naturally contribute to a reduction of the spatial footprint of any given electronic system design.
Technical Library | 2019-06-04 10:19:46.0
Interconnection technology relies very heavily on the ability of the conductors on a printed wiring assembly to maintain reliable signal integrity. Harsh environmental factors can precipitate a loss of conductivity due to oxidation and corrosion. Connections are typically soldered or inserted using pressure fitted connectors to obtain enough surface contact to meet the electrical conductivity requirements. In pressure contacts, surface integrity is especially critical where the abrasive effects of retraction and insertion can wear off the metallic finish from the contact area. This can expose the underlying copper or nickel and lead to increased resistance at the contact points. These types of conductors are frequently found in card edge connectors where the terminations are plated with a layer of nickel and gold (frequently referred to as gold fingers). A hard gold is typically used containing very small amounts of nickel and cobalt to increase the wear resistance.
Technical Library | 2008-06-25 16:11:51.0
Printing technologies provide a simple solution to build electronic circuits on o low cost flexible substrates. Nanocomposites will play important role for developing advanced printable technology. Advanced printing is relatively new technology and need more characterization and optimization for practical applications. In the present paper, we examine the use of nanocomposites or materials in the area of printing technology.
Technical Library | 2009-01-01 16:37:38.0
Recent technology advancement has enabled enhancement in PWB electrical performance and wiring density. These innovations have taken the form of improved materials, novel PWB interconnect structures, and manufacturing technology. One such advancement is Z-axis conductive interconnect. The Z-interconnect technology involves building mini-substrates of 2 or 3 layers each, then assembling several mini-substrates together using conductive paste.
Technical Library | 2006-06-29 13:37:36.0
Electronic Packaging is a critical part of all electronic devices and can be a source of the reliability problems experienced by systems using those devices. In many cases, the packaging defects are intermittent in nature and difficult to detect. This paper describes a tester that has been used for 20 years on commercial products and has proven to be extremely effective in detecting these defects prior to component assembly.
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