Basic Transistor Physics Essay -- physics electronics transistor

The first transistor was demonstrated on Dec. 23, 1947, at Bell Labs by William Shockley. This new invention consisting of P type and N type semiconductive materials (in this case germanium) has completely revolutionized electronics. Transistors quickly replaced vacuum tubes in almost all applications (most notably those in discrete logic). Today when we echo of transistors the first thing that comes to mind is computers. Advances in transistor technology and manufacturing processes as well as new materials being utilise for the semiconductor ground substance and wiring have led to smaller, faster, cheaper, lower part transistors. Some of the rudimentary principles behind semiconductor behavior and the restrictions currently faced by new-fangled transistors will be discussed in the following pages. Transistors are composed of a P type (positively doped) and N type (negatively doped) semiconductor material. These P-N junctions are the spunk of both BJTs (Bipolar Junction Transistors) and FETs (Field Effect Transistors). BJTs have a physical community between they current controlling input (base) and the input and output (collector and emitter). This results in a trickle current into the base. FETs have a physical breakup between the control (gate) and the input and output (drain and source). BJT and FET transistors are used in virtually every electronic device requiring current ruler or amplification. They make it very easy to precisely control power to a device reliably and with much greater efficiency than former(a) methods. Another common use of transistors is their role in discrete logic. start used in DTL (Diode Transistor Logic) transistors compact nature and high sack speeds lend themselves well to use in logic ICs. In ... ...er time speed operation than the G4 processor and will include all the a la mode(p) fabrication developments when released. Processor core voltage for this chip will be as low as 1.2v allowing a higher transisto r compute with very low power dissipation. Pentium 4 core voltage is in the range of 1.55v. Smaller, faster, cheaper...transistors arent quite as boring as you thought huh?Bibliography1. IBM bruiser Technoglogy http//www.chips.ibm.com/2. AMD http//www.amd.com/3. Intel Semiconductor Technology http//www.intel.com/4. Motorola PowerPC Division http//www.motorola.com/5. Transistor History 101 http//users.arczip.com/rmcgarra1/xstrhist.html6. Britneys impart to Semiconductor Physics http//britneyspears.ac/lasers.htm7. The Mac Address http//www.themacaddress.com/8. Electromigration http//www.ifw-dresden.de/ifs/31/gfa/em_e.htm