LISTSERV - TECHNET Archives - LISTSERV.IPC.ORG

TECHNET Archives

July 2004

TechNet@IPC.ORG

	LISTSERV Archives
	TECHNET Home
	TECHNET July 2004

	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:	Re: Allowable solder balls on a component?
From:	"Victor G. Hernandez" <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Tue, 27 Jul 2004 08:41:56 -0500
Content-Type:	text/plain
Parts/Attachments:	text/plain (56 lines)

Rick,

   Reference IPC-A-610C section 6.5.3.1 Figure 6-44 makes diameter
reference to maximum allowable solder ball.
Victor,

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Richard Kraszewski
Sent: Tuesday, July 27, 2004 8:37 AM
To: [log in to unmask]
Subject: [TN] Allowable solder balls on a component?


What is the largest solder ball I am allowed that would not violate
minimum electrical clearance?
 
I am working within class 3 requirements.  The component in question has
9.6mm spacing from the edge of one pad to another. Eventually this
assembly will be conformally coated. 
 
I've turned to A-610, section 12.4.10 but it presents me with this
"minimum electrical clearance" question, and it's appendix 1 doesn't
seem to be of much help. 
 
Any thoughts would be truly appreciated.
 
 
Rich K
 
 
 
 

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts at: http://listserv.ipc.org/archives Please
visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
-----------------------------------------------------

ATOM RSS1 RSS2

LISTSERV.IPC.ORG