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April 2006

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Subject:
Re: Black GFP
From:
Jeffrey Bush <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Jeffrey Bush <[log in to unmask]>
Date:
Fri, 14 Apr 2006 08:46:35 -0400
Content-Type:
text/plain
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text/plain (78 lines) 
Mainly we use for applications like cockpit displays where background light and night flights are an issue.  Also - not all GHP material are opaque.  Many are a blend of standard FR4 and some layers of black b-stage.  

Jeffrey Bush
Director, Quality Assurance and Technical Support
VERMONT CIRCUITS INCORPORATED 
           76 Technology Drive - POB 1890 
              Brattleboro, Vermont 05302
                Voice - 802.257.4571 ext 21
                    Fax - 802.257.0011
                       <http://www.vtcircuits.com/> 
                           

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of "Louis Guérin"
Sent: Thursday, April 13, 2006 11:17 AM
To: [log in to unmask]
Subject: [TN] Black GFP

Hello everyone,

 

I've been ask by a client to explain why someone would use black material for the PCB's instead of standard clear color.

They're main application are for aircraft either military or civilian.

 

I thought that in some application, historically, black material was used in military or aerospace.

Apart black solder mask that, I've been told, could help heat dissipation, does the black color for the PCB's material have the same impact or is it for other reason?

 

What advantage do I have to use a black base material for PCB instead of clear ones? 

 

Thanks,

 

Louis Guérin, C.I.D.+

Conception de Plaquette de Circuit Imprimé| PCB Designer

Lyrtech RD inc. 
*  Téléphone - International/Phone - Worldwide: 1 (418) 877-4644 # 242

*  Sans frais - Canada et É.-U./Toll-free - Canada and USA: 1 (888) 922-4644 # 242

* Téléc./Fax: 1 (418) 877-7710

Infinite possibilities...TM

 


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