Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

On 03/31/2011 02:38 PM, Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

Other than making it RoHS non-compliant?

I use 60/40 solder for prototyping, with a mix of RoHS and non-RoHs
components. I haven't had problems -- but I haven't tried to get
anything through environmental cert, either.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html

On Thu, 31 Mar 2011 14:51:40 -0700, Tim Wescott
wrote:

On 03/31/2011 02:38 PM, Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

Other than making it RoHS non-compliant?

I use 60/40 solder for prototyping, with a mix of RoHS and non-RoHs
components. I haven't had problems -- but I haven't tried to get
anything through environmental cert, either.

This is for my extended G-job... no certification needed ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

Remember: Once you go over the hill, you pick up speed

On Thu, 31 Mar 2011 14:51:40 -0700, Tim Wescott
wrote:

On 03/31/2011 02:38 PM, Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

Other than making it RoHS non-compliant?

I use 60/40 solder for prototyping, with a mix of RoHS and non-RoHs
components. I haven't had problems -- but I haven't tried to get
anything through environmental cert, either.

60/40 for reliability, tin solder for compliance.

On Thu, 31 Mar 2011 17:19:21 -0500, flipper wrote:

On Thu, 31 Mar 2011 14:38:44 -0700, Jim Thompson
wrote:

Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson

If you're talking a discrete 'module' then leading probably uses a
matte tin plating, which shouldn't be a problem for tin/lead solder.
Maybe need a bit more temp than with lead/tin plating to get good
wetting, but less than needed for lead free solder.

BGAs are another matter since they, if RoHS compliant devices, will
already have lead free solder bumps (often/usually SAC) and trying to
mix those with a tin/lead solder profile can be problematic, because
of the temperature mismatch, although solvable from what I hear.

This is hand-work, thru-hole. Only BGA's I ever see are on paper as I
figure out the wire-bonding/strap-welding ;-)

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

Remember: Once you go over the hill, you pick up speed

On Thu, 31 Mar 2011 17:19:21 -0500, flipper wrote:

On Thu, 31 Mar 2011 14:38:44 -0700, Jim Thompson
wrote:

Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson

If you're talking a discrete 'module' then leading probably uses a
matte tin plating, which shouldn't be a problem for tin/lead solder.
Maybe need a bit more temp than with lead/tin plating to get good
wetting, but less than needed for lead free solder.

BGAs are another matter since they, if RoHS compliant devices, will
already have lead free solder bumps (often/usually SAC) and trying to
mix those with a tin/lead solder profile can be problematic, because
of the temperature mismatch, although solvable from what I hear.

We use ROHS BGAs with leaded and lead-free solder, and it all works
fine. We prefer leaded solder of course, and use it on US aerospace
stuff, but we do lead-free for our european customers, who are
presumably less pickey about their airplanes falling out of the sky.
At least they don't spread any lead around when they crash.

John

Raveninghorde wrote:
On Thu, 31 Mar 2011 14:51:40 -0700, Tim Wescott
On 03/31/2011 02:38 PM, Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

Other than making it RoHS non-compliant?

I use 60/40 solder for prototyping, with a mix of RoHS and non-RoHs
components. I haven't had problems -- but I haven't tried to get
anything through environmental cert, either.

60/40 for reliability, tin solder for compliance.

63/37 is the eutectic alloy. I've never noticed a difference in performance
with 60/40, but I feel better about it. ;-)

Cheers!
Rich

John Larkin wrote:
On Thu, 31 Mar 2011 17:19:21 -0500, flipper wrote:
On Thu, 31 Mar 2011 14:38:44 -0700, Jim Thompson

Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

If you're talking a discrete 'module' then leading probably uses a
matte tin plating, which shouldn't be a problem for tin/lead solder.
Maybe need a bit more temp than with lead/tin plating to get good
wetting, but less than needed for lead free solder.

BGAs are another matter since they, if RoHS compliant devices, will
already have lead free solder bumps (often/usually SAC) and trying to
mix those with a tin/lead solder profile can be problematic, because
of the temperature mismatch, although solvable from what I hear.

We use ROHS BGAs with leaded and lead-free solder, and it all works
fine. We prefer leaded solder of course, and use it on US aerospace
stuff, but we do lead-free for our european customers, who are
presumably less pickey about their airplanes falling out of the sky.

Probably more like they're more programmed for obedience than us rough-
and-tumble American rebels. ;-)

At least they don't spread any lead around when they crash.

True. But I do wonder what's the status of fluorescent lamps there. ;-)

Cheers!
Rich

Tim Wescott wrote:
On 03/31/2011 02:38 PM, Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

Other than making it RoHS non-compliant?

I use 60/40 solder for prototyping, with a mix of RoHS and non-RoHs
components. I haven't had problems -- but I haven't tried to get
anything through environmental cert, either.

At ordinary operating temperatures, no problems.
But SMT parts will tend to dislodge at temps 170C and higher; that is
seen even if one starts with HASL PCB and uses tin-silver solder (paste
or wire).
ANY amount of tin-lead significantly lowers the MP.

Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson
At ordinary operating temperatures, no problems.
But SMT parts will tend to dislodge at temps 170C and higher; that is
seen even if one starts with HASL PCB and uses tin-silver solder (paste
or wire).
ANY amount of tin-lead significantly lowers the MP.

"Jim Thompson" wrote in
message ...
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

I do it all (most) of the time.... no-one knows, no-one cares and no-one
checks....

In article ,
says...
On Thu, 31 Mar 2011 17:19:21 -0500, flipper wrote:

On Thu, 31 Mar 2011 14:38:44 -0700, Jim Thompson
wrote:

Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson

If you're talking a discrete 'module' then leading probably uses a
matte tin plating, which shouldn't be a problem for tin/lead solder.
Maybe need a bit more temp than with lead/tin plating to get good
wetting, but less than needed for lead free solder.

BGAs are another matter since they, if RoHS compliant devices, will
already have lead free solder bumps (often/usually SAC) and trying to
mix those with a tin/lead solder profile can be problematic, because
of the temperature mismatch, although solvable from what I hear.

We use ROHS BGAs with leaded and lead-free solder, and it all works
fine. We prefer leaded solder of course, and use it on US aerospace
stuff, but we do lead-free for our european customers, who are
presumably less pickey about their airplanes falling out of the sky.
At least they don't spread any lead around when they crash.

John

I thought telecom and aeronautics were exempt.

Robert Baer wrote:
Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson
At ordinary operating temperatures, no problems.
But SMT parts will tend to dislodge at temps 170C and higher; that
is seen even if one starts with HASL PCB and uses tin-silver solder
(paste or wire).
ANY amount of tin-lead significantly lowers the MP.

Does anything run at 170C, especially SMT?


--

Reply in group, but if emailing add one more
zero, and remove the last word.

Tom Del Rosso wrote:
Robert Baer wrote:
Jim Thompson wrote:
Any issues with soldering to an RoHS-compliant module with ordinary
60/40 solder?

...Jim Thompson
At ordinary operating temperatures, no problems.
But SMT parts will tend to dislodge at temps 170C and higher; that
is seen even if one starts with HASL PCB and uses tin-silver solder
(paste or wire).
ANY amount of tin-lead significantly lowers the MP.

Does anything run at 170C, especially SMT?


Let me put it this way..i make and sell high voltage shunt regulators
guaranteed to operate up to 204C (400F).
They were originally intended to be solid state replacements for the
discontinued Victoreen Corotron(TM) regulators.
But some companies still use these in new tools for the oil patch.