TECHNET Archives

April 1998

TechNet@IPC.ORG
Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
Re: Black Oxide
From:
drilbert <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Mon, 27 Apr 1998 07:31:34 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (44 lines) 
I heard that black oxide "piles up" around the drilling nailhead, and is
the one reason why nailheading creates a reliability problem.
Therefore, brown oxide was invented--smaller drifts of oxide.
However, I was just told that, by a consultant.  I really don't know, I
just make the holes.
Robisan1 wrote:
>
> Everything I have been told is that the oxide coating on
> inner layers was there to provide "tooth" to the otherwise
> smoothe surface of inner layer circuitry.  The debate was
> always whether brown was better than black.
>
> As far as handling, it is a problem because when handling
> you have to be careful not to remove it.
>
> Susan Mansilla
> Technical Director
> Robisan Lab
>
> (I use to build a lot of boards for the Navy)
>
> ################################################################
> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
> ################################################################
> To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
> To subscribe:   SUBSCRIBE TechNet <your full name>
> To unsubscribe:   SIGNOFF TechNet
> ################################################################
> Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
> For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
> ################################################################

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
################################################################

ATOM RSS1 RSS2