You Are Here: Home » Posts tagged "Silicon"

Reverse engineering the silicon in the ARM1 processor

How can you count bits in hardware? In this article, I reverse-engineer the circuit used by the ARM1 processor to count the number of set bits in a 16-bit field, showing how individual transistors form multiplexers, which are combined into adders, and finally form the bit counter. The ARM1 is the ancestor of the processor in most cell phones, so you may have a descendent of this circuit in your pocket. ARM ...

Read more

Understanding silicon circuits: inside the ubiquitous 741 op amp

The 741 op amp is one of the most famous and popular ICs[1] with hundreds of millions sold since its invention in 1968 by famous IC designer Dave Fullagar. In this article, I look at the silicon die for the 741, discuss how it works, and explain how circuits are built from silicon. I started with a 741 op amp that was packaged in a metal can (above). Cutting the top off with a hacksaw reveals the tiny silic ...

Read more

Inside the ALU of the first ARM microprocessor

I stood in stunned silence at the smoke billowing up from the hardware on the workbench. Just moments before, it had been operating as expected, before self-destructing with a sound that can only be compared with a gunshot. The failure of the hardware under test had an unexpected consequence: the computer that had been using a USB-to-UART converter to communicate with the hardware experienced a USB fault th ...

Read more

Water Cooled Silicon Chips are reality

Using microfluidic passages cut directly into the backsides of production field-programmable gate array (FPGA) devices, Georgia Institute of Technology researchers are putting liquid cooling right where it’s needed the most – a few hundred microns away from where the transistors are operating. Combined with connection technology that operates through structures in the cooling passages, the new technologies ...

Read more

Terahertz Optical Transistors Beat Silicon

PORTLAND, Ore.--Purdue University researchers have demonstrated a CMOS-compatible all-optical transistor capable of 4THz speeds, potentially over a 1000 times faster than silicon transistors. Nano-photonic transistors processed at low-temperatures can be fabricated atop complementary metal oxide semiconductors (CMOS) to boost switching time by ~5,000-times less than 300 femtoseconds (fs) or almost 4 teraher ...

Read more

Plessey is first to release GaN on silicon LEDs

Plymouth, England - 8th April 2013 - Plessey announced that samples of its Gallium Nitride (GaN) on silicon LED products (p/n PLW111010) are available today. These entry level products are the first LEDs manufactured on 6-inch GaN on silicon substrates to be commercially available anywhere in the world. Plessey is using its proprietary large diameter GaN on silicon process technology to manufacture the LEDs ...

Read more

Frontier Silicon Launches DABplus Feature for Digital Radio

London (PRWEB) June 1, 2005 Frontier Silicon – the leading fabless manufacturer of semiconductors for mobile digital television and DAB digital radio products – has launched a significant new capability that will bring personal-video-recorder (PVR) like capabilities to digital radio. The company has introduced DABplus, a combination of a sophisticated advanced electronic programme guide (EPG) and advanced r ...

Read more
Scroll to top