Posted On: July 2nd, 2012 | By: Dr. Ron Lasky

Cleaning No-Clean Solder Paste Residues in SMT Assembly

Folks, There is a lot of interest in cleaning PCBs that have been assembled with no-clean solder pastes. Recently I discussed the topic with my ...

Posted On: December 12th, 2011 | By: Dr. Ron Lasky

Military/Aerospace Lead-Free Solder Reliability Still Unproven

Folks, I’m taking a few moments from Wassail Weekend , held annually in my village, Woodstock VT, “The prettiest small town in Americ...

Posted On: October 3rd, 2011 | By: Dr. Andy Mackie

Solder Powder: IPC "Type" and Surface Area

Solder powder particle size and shape impacts the functionality of solder paste in many ways: printing/dispensing/dipping; solderballing; graping; voi...

Posted On: June 6th, 2011 | By: Ed Briggs

SMT Reflow Process Window: Solder Paste Maximum Slope vs. Ramp (or Average) Rate

Included in a solder paste‘s Product Data Sheet, among other things, are general guidelines which aid the customer in designing a...

Posted On: February 14th, 2011 | By: Dr. Ron Lasky

Lead-Free Soldering: Pluses and Minuses

Folks, I thought I would take a stab at listing the minuses, pluses, and “it’s a wash” aspects of assembling with lead-free (LF) sol...

Posted On: August 13th, 2010 | By: Ed Briggs

SMT Soldering Reflow Profiling and Ramp Rates

Solder paste is made to be reflowed in the SMT process. Exactly HOW that is done is critical to your success. Included in the Product Data Shee...

Posted On: June 25th, 2010 | By: Dr. Ron Lasky

An SMT PCB Assembly Competency Screening Quiz

Folks, Patty and Rob return from their honeymoon….... Patty had just finished some emails and was ready to head off to meet Rob and some of the...

Posted On: May 5th, 2010 | By: Dr. Ron Lasky

Patty Tackles Graping in China

Folks, After a bit of a break, the adventures of Patty, Rob, and The Professor continue: The plane droned on as it made its slow march from Detroit to...