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Pros and Cons of Convection Reflow Soldering using Nitrogen

Any electronics manufacturer who has ever considered implementing nitrogen in their soldering process will tell you that the immediate and largest obstacle is cost. One has to either buy nitrogen

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To Minimize BTC Voiding, Start with the Right Solder Paste

Let’s see what’s up with Patty….. Patty was just dropped off at O’Hare airport after finishing a 3 day workshop on Lean Six Sigma statistics, design of experiments, and statistical process

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80Au20Sn: Superior Physical Properties

In my previous post we saw that 80Au/20Sn eutectic alloy performs as both a solder or a braze. This is due to its unique and valuable properties. Let’s explore those properties a bit more

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AVOID THE VOID®: Large Ground Plane Voiding in Electronics Assembly: Solder Paste

In a previous post I spoke about Large Ground Plane Voiding in Electronics Assembly and referred to a statistical tool called an Ishikawa diagram. This tool helps map out a process and provide an

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Thermal Management: Why Indium is the Best Choice

In our first review of our Heat-Spring® metal thermal interface material product line, we noted that the Heat-Spring® sprang from customer need. Polymers and greases were not good enough for

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80Au/20Sn – solder or braze? Excellent question.

You may have heard the 80% gold 20% tin alloy referred to as a solder. Or, you may have heard it called a braze. I’m going to explain how both statements are correct. As we all know, solders

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BGA Voiding in Electronics Assembly

Patty had to admit that the last few weeks were exciting. Her talk to US Army Rangers and Navy Seals on critical thinking went really well. Now, the local newspaper was asking her to comment on

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Voiding: A Critical Issue in Electronics Assembly

Folks, Looks like Patty and the teamhave a new assignment from Mike Madigan. Let's look in….. Patty had just waved to her twin boys as they got on the school bus when her mobile phone rang.

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AVOID THE VOID®: Large Ground Plane Voiding in Electronics Assembly: Stencil Design

In a previous post I spoke about Large Ground Plane Voiding in Electronics Assembly and referred to a statistical tool called an Ishikawa Diagram. This tool helps map out a process and provides an

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AVOID THE VOID®: Large Ground Plane Voiding in Electronics Assembly: PWB Surface Finish

In a previous post I spoke about Large Ground Plane Voiding in Electronics Assembly and referred to a statistical tool called an Ishikawa Diagram. This tool helps map out a process and provides an

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AVOID THE VOID®: Large Ground Plane Voiding in Electronics Assembly: Environment

In a previous post I spoke about Large Ground Plane Voiding in Electronics Assembly and referred to a statistical tool called an Ishikawa Diagram. This tool helps map out a process and provide an

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How rare is indium — and are we running out?

You've seen this in the news before: We are running out of resources. Oil (a perennial favorite), indium (for many years now), or (as of November 2014), chocolate. Name your resource and you can

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Thermal Management Using Indium Metal: The Heat-Spring®

Indium metal has long been used for a variety of applications including low-temperature solder, cryogenic sealing, coatings for touch screens, and in fusible alloys. Most recently it has found its

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In SMT Statistical Process Control, Cpk is King

Let’s look in on Patty and the team…… Several weeks ago… It was just before Christmas and Patty was heading in to Ivy U from her home in Woodstock, VT. Just as she passed

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AVOID THE VOID®: Large Ground Plane Voiding in Electronics Assembly: Ishikawa Diagram

Experiencing soldering defects? Need help with your SMT electronics assembly process? There's a tool for that. Statistical tools, like the Ishikawa Diagram, help map out a process and provide an

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Metal Loading in Solder Paste – A Review (Part 1)

As mentioned in an earlier blog post , a solder paste's alloy type, powder particle size distribution (PSD), and metal loading (weight of metal as a percent or "%w/w") affect the

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Conclusion of In Electronics Manufacturing, Does Cpk =1 Yield 66,800 defects per million?

Patty, Rob, and Pete were quite sure they understood the confusion in the Cpk = 1 issue, but wanted to make sure they discussed it with the Professor. After a brief chat with him, they called ACME

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Materials Lifetimes – A Modest Proposal

Traveling in Malaysia recently, I met up with an old friend (and customer). We got talking about “lifetime” of solder paste: how long could the material survive various process steps

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In Electronics Manufacturing, Does Cpk =1 Yield 66,800 defects per million?

Folks, As Patty was walking past the Professor’s office on her way to see Pete and Rob, she decided to drop in. “Professor, I got the strangest phone call … a man claimed he had

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Wave Soldering: The Soldering Station – An Introduction

For those of you reading my blog for the first time, you will see that my main focus is on Wave Soldering. I recently completed a series on “preheating” where I talked about the different

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Use the Coffin-Manson Equation to Calculate Number of Thermal Cycles

Folks, Let's look in on Patty and friends…. Patty, Rob, and Pete were headed to their regular monthly meeting where they, along with the Professor, discussed a book they were all reading.

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