-YOU ARE INVITED TO ATTEND-

San Diego Chapter of the IPC Designers Council is pleased to present the following:

Wednesday, Jan 25th, 2006

@ 6:00PM

Rick Norfolk
of
Hallmark Circuits

presenting

"Controlled Impedance, from the Fabricator's Point-of-View"

MARK YOUR CALENDAR!!!

The presentation will briefly cover what various types of impedances exist. Mostly the presentation will cover cores/preg material and how they interlink with the finished line width to get the impedance value desired by the OEM. We will cover 'loss to fill ratios' within a board stack-up and how this affects the impedance values and how the percentage of copper of a particular layer is important in determining the dielectric thickness to the reference planes of the various impedance types.

This presentation will help designers better understand what is involved from a fabricator’s standpoint in meeting the required impedance values of a design and the importance of working with a fabricator during the design phase.

Who should attend? Signal Integrity Engineers and PCB Designers

Rick Norfolk is a Sales Applications Engineer for Hallmark Circuits in Poway, California. Rick has been working in the printed circuit industry for approximately 28 years. He started his career at TRW, Printed Circuits Division (later becoming Benchmark Technology) as a planner. Rick was a Planning Engineer at Sigma Circuits for 7 years. He worked for 5 years as a Product Engineer at Hadco/Sanmina in Owego, New York and there he worked with OEM designers on fabrication and design issues and specialized in controlled impedance applications.

Rick has been an Applications Engineer with Hallmark Circuits now for almost 5 years. He routinely provides guidance to their customers in board material and board layer stack-up recommendations for controlled impedance designs. Rick has made several presentations to Hallmark's customers and fabricators regarding controlled impedance design challenges and their solutions and he assists them with all aspects of the printed circuit board's fabrication. Rick holds a B.A. Degree from California State University at Fullerton.

Meeting Agenda:

	6:00PM - Dinner
	6:30PM – Announcements and Introductions
	6:45PM – Presentation
	7:45PM – Q&A
	8:00PM - Adjourn

Hosted by the San Diego Chapter of the IPC D esigners Council

This meeting will be held at:

Hallmark Circuits

13500 Danielson Street
Poway, CA 92064

(858) 513-2200

...
1.	Take the I-15 from the North or South
4	Exit at Scripps Poway Parkway - go 1.5 mi
5.	Turn left at Parkway Centre Dr - go 0.1 mi
6.	Turn right at Danielson St - go 0.0 mi

RSVP to mailto:bbrooks@dtwc.com by Tuesday, Jan 24th, 2006.

IPC Designers Council Members will be admitted free of charge, Non-Members will be asked to contribute a $5.00 donation at the door. Contributors will get a $5.00 discount applied to their membership should they decide to join the IPC Designers Council at the event.

More information about the IPC Designers Council is available on-line at http://www.ipcdesignerscouncil.org or http://dcchapters.ipc.org/SanDiego

SDDC Meetings and Events

Wednesday, Jan 25th, 2006

Rick Norfolk of Hallmark Circuits

Rick Norfolk
of
Hallmark Circuits