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Paralyzed man walks with aid of mind-controlled exoskeleton Image source: A frame from BBC video In an earlier column we introduced a tiny (2.5 mm x 0.6 mm) device called Injectsense, which can monitor the pressure inside the eye. In the not-so-distant future, the goal is to use devices like these to provide organ-to-cloud data connections that will allow clinicians and physicians to monitor our health and determine the effectiveness of...

The lightweight handheld NeoSpectra-Scanner provides material analysis capabilityImage source: Si-Ware Systems I have a cousin who lives in Canada. We’ll call her Rachel (because that's her name). Rachel is extremely allergic to almost any form of shellfish. The slightest hint of a sniff of a mollusk, crustacean, or echinoderm will leave her gasping frantically for air and grasping feverishly for her EpiPen. Rachel's allergy is so severe...

What happens when you try to route two traces between pins on 1mm pitch BGAs? As noted in the previous article on pad stack design and fabrication, there are a number of factors that need to be taken into account when it’s time calculate the complete dimensioning of the finished hole size on a plated through-hole in a PCB. When it comes to fine pitch components, there are always questions regarding what happens when 1mm and smaller pitch...

A prototype of Injectsense's wireless silicon sensor module next to a grain of rice and a quarter (Image source: Injectsense) A little over a year ago, I noticed that things sometimes got a little blurry while I was looking at my computer screen. My cousin Graham in England has macular degeneration, which has left him almost totally without sight. I have to admit that the thought this might happen to me was lurking in the back of my mind, so I...