Blogs

J-STD-004 Halide Test Requirements Update
May 1, 2008
The IPC J-STD-004 committee met at APEX last month. They are planning on releasing an updated specification. One positive change that is being made is that titration is being eliminated as an acceptable method for quantitative halide analysis. That means that ion chromatography is the...

Fine Feature Assembly Issues vis a vis Lead-Free
May 6, 2008
Folks, We are all aware that the miniaturization of electronics continues unabated. As consumers we benefit from this phenomenon, as electronic assemblers we struggle with it. The smaller stencil aperture openings make stencil printing more of a challenge, while at the same time reflow is more difficult because the...

博弈中的纳什平衡 Nash Equilibria in Game Theory
May 9, 2008
前段时间读完了《你身边的博弈》一书，更加感叹自己一直较少理论结合实际，原来身边的许多生活现象是可以用博弈原理来分析的，特别是其中的纳什平衡原则。   span lang=ZH-CN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ascii-font-family:...

Selection of the Optimum Lead-Free Solder for Solar Tabbing Ribbon
Apr 16, 2008
Solar tabbing ribbon typical consists of 10-15 micrometers of solder alloy coated on OFHC or ETP copper strip. SN60, (60% tin and 40% lead) or SN62, (62% tin, 36% lead and 2% silver) typically are the two standard lead-containing solder alloy choices. Both solder alloys have...

A Liquid Metals Handling Update
May 8, 2008
Have you seen the statement on Indium’s product data sheet for liquid metals that says...

Engineered Solders with a European Flavour
Apr 30, 2008
Visit our web site www.esolders.com for more information on Engineered Solders such as preforms and ribbon.

Does Anyone Underfill Package-on-Package Components?
May 12, 2008
This works out well, and is made possible by the design of the bottom component. 

Universal Technology Update; Is your process biased?
May 12, 2008
At what point in new product development does the solder get updated with the rest of the product or process?  “We” as an industry have just finished a “mandatory” update of soldering products, because of...

Semicon Singapore
May 5, 2008
I am in Singapore for Semicon Singapore 2008. This is the first exhibition (that I can recall) that started on a Monday! It sure felt a little weird. Things were certainly slow on the floor up until noon, then the floodgates seemed to open up. This is...