Sep 10, 2010 | M. N. Srinivasa Prasad.
An optimal reflow profile is one of the most critical factors in achieving quality solder joints on a printed circuit board (PCB) assembly with surface mount components. A profile is a function of temperatures applied to the assembly over time. When graphed on a Cartesian plane, a curve is formed that represents the temperature at a specific point on the PCB, at any given time, throughout the reflow process....
Sep 09, 2010 | Bev Christian
The effectiveness of cleaning stencils and misprinted/dirty printed circuit boards can be effectively monitored. This can be done by washing known clean circuit boards and then checking to see if they have stayed clean as a result of the washing process. ...
Publisher: Research In Motion
Sep 02, 2010 | ScanExpress JET™ White Paper
As chip packaging and interconnectivity have become more dense and operate at higher clock frequencies, physical access for traditional bed-of-nails testing becomes limited. This results in loss of ICT (in-circuit test) fault coverage and higher test fi...
Publisher: Corelis Inc.
Aug 26, 2010 | Siemens PLM Software
Driven by high-profile regulations compliance like the TREAD Act, warranty management has become a hot topic across industries worldwide. Recalls are costly and time-consuming events that should be avoided entirely. But without adequate process traceability and product genealogy, too many customers will get defective products and too many products will be recalled for repair or replacement even though they are not defective. Both scenarios have enormous implications for the quality-conscious manufacturer that gets rated on the number of recalls it performs - not to mention the enormous direct costs. The core issue is visibility into product quality....
Publisher: ASM Assembly Systems GmbH & Co. KG
Aug 26, 2010 | Murata
Radio frequency identification (RFID) ICs are a popular alternative to barcodes for PCB tracking applications. This article outlines some of the challenges that may be encountered when implementing an RFID system...
Publisher: Murata Manufacturing Co., Ltd.
Aug 26, 2010 | CODICO GmbH, Yamaichi Electronics
The advantages of the Compression Mount Technology (CMT) when using AdvancedTCA and MicroTCA connectors....
Publisher: Yamaichi Electronics
Yamaichi Electronics is an international manufacturer of Memory Card connectors, test & burn-in-sockets, production sockets, test contactors, and high-density connectors.
San Jose, California, USA
Aug 19, 2010 | Dong Zhang, Meg Tredinnick, Mark Challingsworth
The silver end termination plays an important role for multilayer chip inductors. A basic requirement is to achieve excellent electrical properties with superior adhesion to the chip. Driven by the increasing price of silver, interest has been shown to ...
Aug 19, 2010 | Griff Derryberry
This article looks at each of the roles of the engineer and PCB designer, considers the traditional design process, and makes suggestions on how the designer can contribute significantly to improving a design’s overall signal integrity while simultaneousl...
Aug 05, 2010 | Bart O. McCoy, Robert Techentin, Benjamin Buhrow, Kevin Buchs, Dr. Barry K. Gilbert, Dr. Erik S. Daniel, How Lin
Variability analysis is important in successfully deploying multi-gigabit backplane printed wiring boards (PWBs) with growing numbers of high-speed SerDes links. We discuss the need for large sample sizes to obtain accurate variability estimates of SI me...
Publisher: i3 Electronics
A world leader in high-performance PCB fabrication & assembly, semiconductor packaging, systems integration & test, advanced laboratory services and contract R&D.
Endicott, New York, USA
Jul 29, 2010 | Satoshi Kataoka, Eric Klaver
The introduction of the 01005 chip components in 2004 was a challenge to the whole electronics equipment assembly industry. The components’ miniature size made them difficult to see, let alone place reliably with high accuracy. Designers were reluctant to...