Good advice Steve.
I almost lost a Electronic Technician Instructor because he pointed at what not to, while teaching a class on high voltage radar equipment.
The majority of the content for the High Voltage soldering section of 610 came as contributions from Don Ripplinger of ITT Aerospace. He might be a good source for the technique side also. I've not heard from him in a couple of years but someone here might know his whereabouts. The military soldering schools all offered high voltage soldering for technicians that were involved in component replacement.
 

Mel Parrish
Director of Training
Soldering Technology International
102 Tribble Drive
Madison, AL 35758
256 705 5530
256 705 5538 Fax
[log in to unmask]
www.solderingtech.com

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Steve Gregory
Sent: Monday, July 15, 2002 8:43 PM
To: [log in to unmask]
Subject: Re: [TN] Ball Solder for High Voltage

Phil just touches the "Tip of the iceburg" about high voltage stuff...we do some high voltage stuff for a semi-conductor equipment manufacturer, and I was amazed at the things that need to be thought about...

One of our test engineers visited the company, and they took him back to where they had some of the equipment operating that we build boards for, and they told him that whatever he did, was not to point at anything while in the room, because he would be a "lightning-rod" and might be struck. All the cabinents had rounded corners to keep arcs to a minimum...scarey stuff if you ask me!!!

-Steve Gregory-


Linda,

In a nutshell here is what we do.  We first start with a good standard solder connection with a short or clinched lead.  Then we heat up the joint and add more solder until there is a nice dome over the whole solder joint.  If you leave the soldering iron on the solder too long you will get spikes as the solder ages.
There may be specs with quantifying numbers of how high, angle of curve, etc.  This is something that I haven't found extensive data/specs to support.  It is something that is unique to those of us who are working with higher voltages.

Phil Nutting

-----Original Message-----
From: Linda Langley [mailto:[log in to unmask]]
Sent: Monday, July 15, 2002 8:42 AM
To: [log in to unmask]
Subject: [TN] Ball Solder for High Voltage


Anyone out there know where I can get some information about Ball Solder
Techniques?   IPC-610 gives some inspection standards but I would like to
have some type of procedure for making that type of solder joint. Or, point
me in the right direction for finding information.


Thanks
Linda


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