BGA Breakouts and Routing: Effective Design Methods for Very by Charles Pfeil

By Charles Pfeil

This e-book is for PCB designers who're designing forums with a number of very huge Ball Grid Array (BGA) applications. It explores the influence of dense BGAs with excessive pin-count on PCB layout and offers recommendations for the inherent layout demanding situations. although you'll no longer but were faced with the problems of routing BGAs and the influence on fabrication expenses and sign integrity, this publication will show those capability pitfalls in addition to easy methods to mitigate those difficulties

Show description

Read or Download BGA Breakouts and Routing: Effective Design Methods for Very Large BGAs PDF

Similar electronics books

Handbook of switchmode power supplies

The top hands-on consultant during this speedily increasing quarter of electronics, Keith Billings revision of the Switchmode strength offer guide brings extra state of the art thoughts and advancements to engineers in any respect degrees. supplying sound operating wisdom of the most recent in topologies and transparent, step by step ways to part judgements, this instruction manual offers strength provide designers useful, solutions-oriented layout suggestions, freed from unnecessarily complex mathematical derivations and thought.

Power Electronics and Instrumentation Engineering: International Conference, PEIE 2010, Kochi, Kerala, India, September 7-9, 2010. Proceedings

This e-book includes the simplest papers of the foreign convention on Advances in energy Electronics and Instrumentation Engineering, PEIE 2010, equipped by way of the organization of computing device Electronics and electric Engineers (ACEEE), in the course of September 7–9, 2010 in Kochi, Kerala, India. PEIE is a global convention integrating significant components of electric en- neering – strength electronics and instrumentation.

Intelligent Integrated Systems: Devices, Technologies, and Architectures

This publication offers a cutting-edge evaluation through internationally-recognized researchers of the step forward units architectures required for destiny clever built-in structures first booklet within the Pan Stanford sequence on clever Nanosystems. either complicated Silicon dependent CMOS applied sciences and New Paths to Augmented Silicon CMOS applied sciences, showing within the first part and the second one part respectively, function extra Moore, greater than Moore and past kind of units of curiosity to development Heterogeneous built-in structures.

Power system optimization: large-scale complex systems approaches

An unique glance from a microeconomic viewpoint for energy process optimization and its program to electrical energy markets provides a brand new and systematic point of view for energy approach optimization encouraged through microeconomics and video game idea A well timed and demanding complicated reference with the short development of shrewdpermanent grids Professor Chen is a pioneer of employing experimental economics to the electrical energy industry buying and selling mechanism, and this paintings brings jointly the most recent examine A better half web site is obtainable Edit

Extra info for BGA Breakouts and Routing: Effective Design Methods for Very Large BGAs

Example text

A good example of these adjustments is impedance control. Regardless of how carefully the stackup is defined with trace widths, material choices, dielectric and copper thicknesses, the fabrication process is not so exact. Each vendor has different equipment and methods. The lamination process shrinks the dielectrics and materials may be changed if not in stock or readily available. The tolerances in all areas add up and ultimately a reliable vendor has to make the right combination of adjustments in-process so that when measuring impedance on the test coupon, it fulfills your spec.

A stripline configuration, where pairs of signal layers are sandwiched between plane layers, not only provides the best return paths but also reduce crosstalk. This supports the notion that using a ground plane on the outer layers is a good practice. Recommended HDI Stackups What are the best HDI stackups for BGA breakouts and routing? It depends on your priorities. The following stackups were analyzed for relative cost, route density, power integrity and signal integrity. The three are rated at the top with the priority given to route density with good power and signal integrity.

It depends on your priorities. The following stackups were analyzed for relative cost, route density, power integrity and signal integrity. The three are rated at the top with the priority given to route density with good power and signal integrity. 44 Chapter Three – HDI Stackups Stackup A Figure 3-12: Stackup A Stackup A Comments: • Total score = 13 • This is a great average of the variables and a good stackup if you are starting out with HDI. • The via models are simple and it won’t be difficult to find vendors who can fabricate them.

Download PDF sample

Rated 4.50 of 5 – based on 18 votes