 
| Subject: | |
| From: | |
| Reply To: | DesignerCouncil Mail Forum. |
| Date: | Thu, 2 Oct 1997 11:03:09 -0500 |
| Content-Type: | text/plain |
| Parts/Attachments: |
|
|
IPC-D-275 is over 6 yrs. old. The IPC is in the process of updating the standard. It is currently at the Interim Final stage. We expect the update (now called IPC-2221) to be published in Q1 '98.
The table you are questioning has been updated, especially between 0-30 volts (now 0.1 mm [0.004 in]) minimum spacing.
Lisa Williams
IPC
>>> <[log in to unmask]> 10/02/97 10:38AM >>>
Fellow designers;
Do I understand IPC-D-275 Table 3-1 Column B2 as applying to minimum
spacing between pads and/or vias?
If so; I'm ashamed to say that I've been in violation for as long as
I've ever designed circuit boards. I've always set via/via, via/pad,
and pad/pad spacing to the same as the spacing for traces. ( 13/12,
10/10, 8/8, whatever )
George Uptain - Development Technician IV
Schlumberger Oilfield Services Austin, Texas
(512) 331-3183
##############################################################
IPC Designers Council Mail List 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 DESIGNERCOUNCIL <your full name>
To unsubscribe: SIGNOFF DESIGNERCOUNCIL
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
##############################################################
##############################################################
IPC Designers Council Mail List 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 DESIGNERCOUNCIL <your full name>
To unsubscribe: SIGNOFF DESIGNERCOUNCIL
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information.
For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311
##############################################################
|
|
|
