LONDON Ė Nanium SA (Porto, Portugal), formerly known as Qimonda Portugal and one of few chip packaging and test companies left in Europe, has announced it has shipped its 200 millionth embedded wafer-level BGA (eWLB) component for wireless communications and other applications.
The main reason to use eWLB technology is that it allows greater fan-out and pin-counts than conventional wafer-level packaging and more space for interconnect routing and thinner packages.
The 300-mm eWLB uses a combination of front-end and back-end semiconductor manufacturing techniques, and Nanium said it has adapted the process for consumer MEMS, stacked-die DRAM multichip packages (MCP) and mixed-signal RF ASIC applications.
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"This milestone, which we have reached in less than two years, demonstrates that eWLB technology is a robust low-cost solution delivering both high reliability and high yields for manufacturing advanced electronic products with high I/O density in a small form-factor," said Armando Tavares, Nanium president, in a statement.
A few years ago, I was working on the design of a data acquisition system (DAS) that would eventually need to be tested when manufactured. It had both high-side current sensing and floating diff-amp input channels. I could either recommend to the client that some expensive equipment be bought and configured for such testing or else design and build some prototypes of a Floating Differential Source (FDS) which would cost much less. I did the latter.
As an engineer, eventually you will have to insert an equation into your written work or presentation. This can be a struggle as equation editors are not always the friendliest. However, there is good news. The equation editor in Word has improved immensely (I am using version 2010 here). In this blog we look at how to insert an equation into a Word document. As a bonus, there is information on how to insert an equation into a web page with an html code generator website.
Wait a minute. Letís see if I understand this. (Here Iím channeling you, the puzzled reader, after youíve grabbed me in the coffee break of a Filter Wizard lecture morning). The frequency of the nth harmonic of a sinusoid is n times that of the fundamental. The nth harmonic distortion is defined as the ratio of the amplitude of the nth harmonic to the amplitude of the fundamental. So the 1st harmonic distortion isÖ the ratio of the amplitude of the fundamental to the amplitude of the fundamental and thatísÖ unity. I. Do. Not. Understand.