High Frequency Flex minutes -110515

Minutes of Nov 5, 2015 Meeting

(10:00 AM Central)

 



Project Leader:  Martyn Gaudion, Polar Instruments.

 

Project Facilitator:    John Davignon, HDP

 

Present on the call:

 


Martyn Gaudion, Polar (Lead)

John Davignon, HDP

Farhad Razavi, MFlex

Tony Senese, Panasonic

Neil Chamberlain, Polar


 


Next Meeting:  Nov 19, 2015 @ 10 AM CT

 

Next Meeting Agenda:

 

·         Neil to supply the cross hatch designs he would like to see on the panel and what would give us the most information.

·         Discuss what help maybe provided by Microconnex (Geoffrey/Microconnex)

·         Discuss getting CAD support.

Action items:

 

·         Neil to set the crosshatch design and send it to Farhad who will run it on his CST simulator. Neil will send the data in Polar field solver with stack-up, pitch, trace width and offsets to Farhad.

Discussions

 

TV/coupon Design discussions:

 

Neil would like to do a WebEx meeting to show what they can do and what his customers are doing (sensible and non-sensible).

 

Polar software can set the crosshatch width and crosshatch pitch. They set the pitch for the differential pair and keep the width constant. The angle is now 450 degrees but their customers are wanting more options and change. Neil wants to offset the differential pair, but this may make fabrication difficult.

 

The crosshatch are really modified by the fabricators to make the target impedance. Neil said that they send the data into the fabricator with only a target idea of the crosshatch.  Trying to align the crosshatch to the differential pair is very hard.

 

It was suggested that we should use Single ended trace that we can then move around the crosshatch. At least for the first pass. Using Dif pairs will make it very difficult to control.

 

Tony wants to make sure we do not make this extremely difficult and with too many factors during our first round.

 

Farhad wants to start with Simulation first to see what we should get. This would help to define how much of a change this would be. Farhad has CST capabilities.

 

Next Step: 

Neil will set the design and send it to Farhad who will run it on his CST simulator.

Neil will send the data in Polar field solver with stack-up, pitch, trace width and offsets to Farhad.

 

 

Plan to date:

·         The team decided to do the baseline study with the thicker laminates as designed by Neil Chamberlain stack-up construction posted to the website.

·         Farhad volunteered M-Flex to help with the simulation of the X-hatch design that Polar will send to him.

·         Glenn said that TTM Santa Clara will build the TV

·         Polar can do the connectorless SPP testing

·         Glenn can do the S3 testing (he will have to put on connectors for this)

 

Next Meeting:  Nov 19, 2015 @ 10AM CT          

 

 

EOM

 

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