Reduce PCB pad area on fabricated boards

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Hi Guys, We are seeing signal integrity issues on PCBs du... - Oct 25, 2013 by R

Laser ablation * Photochemical (UV sources, e.g. Excimer) ... - Oct 27, 2013 by davef

Do you actually need to reduce the area of the copper? Or co... - Oct 28, 2013 by davef

Dave - I actually need to trim down the copper area Th... - Oct 28, 2013 by R

Our company is one of leading Electronics components distrib... - Sep 16, 2014 by jacky3855

#71281

Reduce PCB pad area on fabricated boards | 25 October, 2013

Hi Guys,

We are seeing signal integrity issues on PCBs due an improper pad size. We tried to trim down the pad size and it fixed the issue.

Problem now is we have many assembled and blank PCBs. Is there a way we can have the pad size reduced on these boards with minimal risk. Plating on the board is ENIG.

Thanks!

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davef

#71282

Reduce PCB pad area on fabricated boards | 27 October, 2013

Laser ablation * Photochemical (UV sources, e.g. Excimer) * Photothermal (IR sources, e.g. CO2)

Comparing sources: * CO2 Laser-->UV Nd:YAG Laser--> Excimer Laser: An increase in system capabilities & ablation quality * CO2 Laser-->UV Nd:YAG Laser--> Excimer Laser: A decrease in processing speed and relative increase in manufacturing cost

Laser ablation equipment suppliers: * M-Solv Ltd, Oxonian Park, Langford Locks, Kidlington, Oxford OX5 1FP, United Kingdom; +44 (0)1865 844070, Fax: +44 (0)1865 844071 m-solv.com * Orbotech Inc., 44 Manning Road, Billerica, MA 01821; 978- 667-6037 F978-667-9969 orbotech.com Ram Oron ram.oron@orbotech.com

* Spectra-Physics, Santa Clara, CA; newport.com/spectraphysics Ashwini Tamhankar ashwini.tamhankar@newport.com

Laser ablation service providers: * Laser Services, Inc., 123 Oak Hill Road, Westford, MA 01886; 978- 692-6180 laserservicesusa.com Tara Graham, TGraham@LaserServicesUSA.com

* Micron Laser Technology, 22750 NW Wagon Way, Hillsboro, OR 97124; 503-439-9000 F503-439-3365 micronlaser.com Brett Robertson * LaserVia Drilling Centers. LLC, 9755 SW Commerce Circle Suite B-3, P.O. Box 1310 Wilsonville, Oregon 97070; 503-570-2666 F503-570-4239 laservia.com Larry Burgess lburgess@laservia.com

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davef

#71290

Reduce PCB pad area on fabricated boards | 28 October, 2013

Do you actually need to reduce the area of the copper? Or could you just cover some of the copper with something?

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