When designing HDI boards, one question that needs to be resolved up-front is whether or not to use VIP, and if so, what type? Happy Holden’s book “HDI Handbook” (available at www.hdihandbook.com) has quite a few references in the Index that describe the use of VIP. I wrote an article recently in CircuiTree called “A Fresh Look at MicroVias”, in which a few paragraphs describe the various forms of … Read More
Tags: MicroVia, HDI, Via-In-Pad
In a December article I wrote that was published in CircuiTree called “A Fresh Look at MicroVias”, I presented the value of stacking microvias in the context of increased route density. The full article can be found here: http://www.circuitree.com/Articles/Feature_Article/BNP_GUID_9-5-2006_A_10000000000000953428
In this blog, I am interested in getting feedback about stacking or staggering … Read More
In my last post, I alluded to some prizes that Mentor will be giving away at DesignCon 2010. We are giving away THREE of these great Planet HyperLynx leather jackets (unless I can get my hands on one; then it would be two!) These are great looking jackets that anyone would be happy to own.
But wait! You can’t buy these in any store. You must come by the Mentor Graphics booth at DesignCon and register … Read More
Tags: Planet HyperLynx, PCB Software, Power Integrity, DesignCon 2010, HDI, DesignCon, Signal Integrity, PCB Simulation, High Speed PCB, PCB Analysis
I’m sure all of you are aware of the rapid progression of HDI technology used in mobile phones, telecom and advanced consumer products. But HDI is rapidly being introduced into military and space programs as well. The HDI for military and space has to be ultra-reliable and capable of harsh environments. The cost to develop these materials and fabrication processes can be quite high. … Read More
Tags: PCB Reliability, PCB Mfg, Process Control, PCB Manufacturing, Education, HDI, Test Vehicles, HDI Design, HDI Redesign, Quality
For everyone using the new HyperLynx PI tool, here is a list of available PCB Laminates that are candidates for the PWR/GND pair in your stackup. This table is from page 217 (Fig 32) of my HDI HANDBOOK. The entire Chapter 5 is about “Materials for HDI” and you might find it interesting.
Some of the abbreviation used in the Table are: CCL=copper clad laminate; film=copper clad unreinforced polyimide … Read More
Tags: PCB_mfg, PCB_Laminate, HDI_Design, PCB_Manufacturing, HDI, Laminate, PCB_Design, FR4
The HDI Handbook - A comprehensive high-density interconnection resource for designers, fabricators and assemblers
First Edition, Written by Happy Holden, et al., Edited by Happy Holden and Diane Neer Here is the link to DOWNLOAD the HANDBOOK (53 MB ZIP)
I have finally finished my book on high density interconnects (HDI). Along with the help of 9 friends and fellow PCB experts, we have created a 631 … Read More
Tags: HDI_Design, HDI
In addition to “doing everything right”, I think there are 6 other ideas that can help lower the manufacturing cost of a PCB.
1. Understanding First Pass Yield (FPY) in Mfg.- The mfg. yield of a PCB can be predicted for a particular fabricator by ‘calibrating’ that fabricator’s capability. 75% of the cost of a PCB is based on the design (20 - 25% is cost of inventory and factors not related to the … Read More
Tags: PCB Manufacturing, PCB Flow, PCB Tooling, Fabricator Capability, HDI, Cost Competitive, Yields, Lowering Costs, JPC, JPC Standards
A lot of my time is spent helping customers implementing HDI. I also spend a good deal of time teaching seminars on how to get started in HDI. The most frequent questions I receive are:
How Do I get Started?
How can I deal with a fabricator that states he can not build it to your recommendations?
What do we have to do to convince management that this is worthwhile?
In response to these questions … Read More
Tags: Redesign, Quality, Test_Vehicles, Education, HDI_Design, HDI, PCB_Flow, PCB_Reliability, HDI_Redesign, OEM_Manufacturing
Book helps you resolve BGA-layout issues
by David Marsh – EDN, 10/2/2008
As a circuit designer who also often lays out quite complex boards, I found the temptation to purchase Charles Pfeil’s new book-BGA Breakouts & Routing: Effective Design Methods for Very Large BGAs-irresistible, and I wasn’t disappointed. The approximately 160 pages and more than 100 figures within this quality paperback … Read More
Tags: Route, Expedition_PCB, BGA, HDI, Breakout, Design_Methods, BGA_Routing, Board_Fabrication
HIGHLY RECOMMENDED!
If you thought the presentation on HDI in Expedition PCB was good, this one is even better!
Effective BGA Fanout Patterns
Selecting the above link will take you to a presentation that condenses the most important aspects of my book “BGA Breakouts and Routing” into 1/2 hour. Normally this presentation takes about 2 hours live; however, I have attempted to provide you with … Read More
Tags: Route, Expedition_PCB, BGA, HDI, Breakout, Design_Methods, BGA_Routing, Board_Fabrication
