LISTSERV - DESIGNERCOUNCIL Archives

DESIGNERCOUNCIL Archives

February 2013

DesignerCouncil@IPC.ORG

	LISTSERV Archives
	DESIGNERCOUNCIL Home
	DESIGNERCOUNCIL February 2013

	Log In
	Register

	Subscribe or Unsubscribe

	Search Archives

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 >>]

Subject:	Punching tools
From:	Gary Koven <[log in to unmask]>
Reply To:	Gary Koven <[log in to unmask]>
Date:	Tue, 26 Feb 2013 07:19:31 -0800
Content-Type:	text/plain
Parts/Attachments:	text/plain (34 lines)

Our Asia Pacific CM is requesting permission to use punching tools to singulate boards from panels.

My experience with punching tool sets is that their cost outweighs the benefits, but this CM states they can make the tool sets at a beneficial cost.

Our initial reaction is that it's okay, as long as components are not stressed by the punching action of the male die onto the female die, and as long as the exterior board profile dimensions match the Gerbers.

Earlier today I posted about edge spacing, and was also curious whether minimum edge spacing would matter in the world of punched-out boards.

We saw the CM's panel design, and it was a combination of mouse bite and v-score that really didn't look essentially different from what we see without punching tools.

There doesn't seem to be any IPC guidance regarding punching tool accuracy or designing panels for punch. Any comments welcome.

TIA and Best Regards,
Gary M. Koven, C.I.D.
InVue Security Products

Charlotte, NC, USA
Board Of Directors, RTP Chapter

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________

---------------------------------------------------------------------------------
DesignerCouncil Mail List provided as a free service by IPC using LISTSERV 16.0.
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF DesignerCouncil.
To temporarily stop/(restart) delivery of DesignerCouncil send: SET DesignerCouncil NOMAIL/(MAIL)
For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
---------------------------------------------------------------------------------

ATOM RSS1 RSS2

LISTSERV.IPC.ORG