Flat Panel and LCD Screens: Part 1

By | 2017-11-10T17:15:40+00:00 June 16th, 2016|Electrical Engineering, Mechanical Engineering|

Figure 1: Powered LCD screen of a Sony Ericsson S500i at 200x magnification. Liquid crystal display (LCD) screens are omnipresent in our technologically saturated lives.  Having largely displaced the older CRT screens, LCDs make up a large portion of the digital imaging we see all around us.  They are present in everything from our ubiquitous smartphones and computer screens to digital billboards, wristwatches and vehicle and aircraft instrumentation.  How do flat panel LCD screens work? One can often find videos and articles documenting eager teardowns of new devices, but few delve beyond the hardware and into the materials and design behind [...]

Semiconductor Safety: Pyrophoric Gases

By | 2017-11-08T16:11:01+00:00 February 19th, 2016|Mechanical Engineering, Safety, Semiconductor|

We have written about pyrophoric materials in a number of Glew Engineering’s previous blogs on safety in semiconductor fabrication, but have yet to cover how to define it or its danger.  At its simplest, a pyrophoric substance is any substance that spontaneously ignites in room temperature air.  As one might imagine, spontaneous combustion on contact with the regular atmosphere we live in can be quite dangerous. Last year, Glew Engineering assisted a research lab in designing a safe gas distribution system for their plasma-enhanced chemical vapor deposition chamber.  During the initial work, the building administrators and safety managers were concerned about the lab’s proposed [...]

Series on Semiconductor Processing and Integrated Circuits, Part 3: Oxidation

By | 2017-05-10T10:59:41+00:00 March 12th, 2014|Materials Science, Mechanical Engineering, Semiconductor|

A review of oxidation during semiconductor fabrication and semiconductor processing.