Sender: |
|
Subject: |
|
From: |
|
Date: |
Thu, 12 Mar 1998 02:55:31 PST |
Organization: |
Xerox Corporation |
Reply-To: |
|
Parts/Attachments: |
|
|
In the past I have made this a part of incoming inspection (especially to
qualify new vendors). A laser section microscope is quick and easy
(measure across an aperature with the stencil in contact with a flat
surface).
The results: nominal thickness reasonably accurate and uniform
step down areas -- thickness commonly inaccurate and non-uniform
Cheers
Brad Vanderhoof
-----Original Message-----
From: Eddie Brunker [SMTP:[log in to unmask]]
Sent: Thursday, March 12, 1998 2:32 AM
To: [log in to unmask]
Subject: [TN] Stencil homogeneity
Hi,
I would like to know if anyone measures the stencil thickness at various
locations to check the stated thickness (in our case 7 thou and 8 thou) is
actually what you get?
Do stencils vary over the expanse of the frame to any appreciable extent?
We
use stainless shim, fully mounted.
Regards,
################################################################
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
################################################################
|
|
|