32bitmicro

1. Nanotape could make solder pads obsolete

Nanotape could make solder pads obsolete "To the unaided eye, the nanotape will look like a conventional solder pad, because both the top and bottom are metallic. But inside it will harbor the superior thermal conduction of the carbon nanotubes. " ...

Monday, 24 January 2011 | 90 hits | Print |  E-mail | Report | Read more

2. Embedding Components into PCBs

Embedding Components into PCBs "In a process driven particularly by the mobile industry, electronic products are rapidly decreasing in size while increasing the number of functions. Designs are running out of space in which to place the...

Wednesday, 23 March 2011 | 110 hits | Print |  E-mail | Report | Read more

3. Printing and Assembly Challenges for QFN Devices

Printing and Assembly Challenges for QFN Devices "Printing solder paste 1-1 with the ground plane can cause the QFN to float during reflow, thus miss-registering the leads on the QFN and the pads on the PCB. QFN float can be controlled by reducing...

Monday, 23 May 2011 | 127 hits | Print |  E-mail | Report | Read more

4. From the CAD Library: Inch-to-Metric Conversion Tables

From the CAD Library: Inch-to-Metric Conversion Tables "Millimeters allow finer (and greater) granularity in the PCB design grid system to optimize board real-estate, part placement, via fanout and routing trace/space features and snap grids. This...

Tuesday, 21 June 2011 | 151 hits | Print |  E-mail | Report | Read more

5. PCB Design Techniques for DDR, DDR2 & DDR3, Part 1

PCB Design Techniques for DDR, DDR2 & DDR3, Part 1 "Multilayer PCB Stackup Before starting the PCB design, it is important to plan the PCB stack-up. To achieve the best results, the following points need to be taken into account: a)...

Wednesday, 29 June 2011 | 254 hits | Print |  E-mail | Report | Read more

6. Green Monsters of the Painted Circuit Boards

Green Monsters of the Painted Circuit Boards Engineers have a rather simplistic view of the PCB design and manufacturing methods. Good PCB should be flat, rigid, green and made from FR4. Introduction of the flexible PCBs added some new ideas...

Tuesday, 04 October 2011 | 126 hits | Print |  E-mail | Report | Read more

7. Taking on the 0.3 mm ultra-fine pitch device challenge in PCB design

Taking on the 0.3 mm ultra-fine pitch device challenge in PCB design "Increasingly greater product miniaturization along with higher levels of functional integration. The best examples are the new crops of smart phones and mobile/wireless...

Wednesday, 05 October 2011 | 82 hits | Print |  E-mail | Report | Read more

8. Quadrature-via layout

Quadrature-via layout "Quadrature layout does nothing to mitigate common-mode crosstalk, but at least it nails the differential mode." "Figure 1 illustrates the pattern of magnetic fields emanating from a pair of vias carrying a purely...

Saturday, 10 December 2011 | 68 hits | Print |  E-mail | Report | Read more

9. PC boards: Materials and processing are now a hot technology

PC boards: Materials and processing are now a hot technology "Engineers' traditional rational for printed circuit boards (PCBs) was to save cost over hand-soldered wiring. The earliest PCBs were made from paper saturated with phenolic resin. This...

Tuesday, 20 December 2011 | 124 hits | Print |  E-mail | Report | Read more

10. Particle-free silver ink prints small, high-performance electronics

Particle-free silver ink prints small, high-performance electronics 'University of Illinois materials scientists have developed a new reactive silver ink for printing high-performance electronics on ubiquitous, low-cost materials such as flexible...

Wednesday, 18 January 2012 | 53 hits | Print |  E-mail | Report | Read more