Posted On: October 7th, 2005 | By: Dr. Ron Lasky

SAC Alloy for RoHS Compliant Solder Paste: Still on Target

Folks, I read with dismay this week, an advertisement in an electronic assembly trade journal touting a “drop in” solder paste. The solder...

Posted On: August 31st, 2005 | By: Dr. Ron Lasky

A Layman's Perspective on the Effect of Alloying

Folks, Recent work and teaching has caused me to reflect on several interesting properties of alloys. Alloying typically: 1. Lowers the melting temper...

Posted On: August 18th, 2005 | By: Dr. Ron Lasky

Tin Pest: Still a Forgotten Concern in Lead Free Assembly

Folks, I am still surprised that so few people are concerned about tin pest in lead-free assembly. Below is an excerpt from a paper I wrote on the top...

Posted On: July 5th, 2005 | By: Dr. Ron Lasky

Comments on Handheld XRF Analyzers for RoHS Compliance Screening

Folks, Several companies have developed hand held units to aid in screening for RoHS compliance Let me start off by saying that I think such a unit wo...

Posted On: June 8th, 2005 | By: Dr. Ron Lasky

High Lead Solders Exempt from RoHS

Eric writes: Dr. Ron, I have an application that uses a high melting point solder. The solder has more than 85% lead. Is it exempt from RoHS? Eri...

Posted On: March 25th, 2005 | By: Dr. Ron Lasky

RoHS Exemption for Ceramic Devices?

Chuck writes: Dr. Ron, I make ceramic modules, so I am assuming that I am excepted from RoHS (See Annex 4.) My ceramic models use lead containing sold...