EXAM3-2009key - EXAM III INTRODUCTION TO MATERIALS SCIENCE...

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EXAM III INTRODUCTION TO MATERIALS SCIENCE - MSE 150 SPRING 2009 HONOR CODE I PLEDGE MY HONOR THAT I HAVE NEITHER GIVEN OR RECEIVED AID ON THIS EXAMINATION SIGNATURE _________________________ PRINT NAME _________________________ CAST YOUR VOTE TO DECIDE WHETHER THERE WILL BE A BONUS QUIZ ON MONDAY, APRIL 20, 2009 YES ______ NO ______ DO NOT TURN THIS PAGE UNTIL 10:10 YOU HAVE 50 MINUTES TO COMPLETE THIS EXAM 1
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12 points) What is the name of the electronic device in the figure on the right? Metal Oxide Semiconductor Field Effect Transistor (MOSFET) What happens when a negative voltage is applied to the region labeled G and there is a positive voltage difference between the regions labeled S and D? No current, the FET is off What are the names of the regions labeled S, G, and D? Source Gate Drain What is the name of the material used to make the region labeled G? Polysilicon What is the name of the deposition process used to make the material labeled G? Chemical Vapor Deposition (CVD) What material is used to insulate the channel from the region labeled G? Silicon Dioxide (SiO 2 ) What is the name of the process by which a microscopic pattern is transferred to the silicon wafer surface of the integrated circuit? Photolithography Name a technique used to introduce the dopant atoms into a silicon wafer in order to make n- type or p-type regions for IC devices? Ion Implantation or Diffusion Name a metallization method used to produce the wiring between devices on an IC chip. Evaporation or Electroplating Name the process used to grow magnetic thin films for magnetic data storage. Physical Vapor Deposition (PVD) Sputtering (3 points) For nucleation of a solid from the liquid: What is the thermodynamic driving force? Decrease in volume free energy
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EXAM3-2009key - EXAM III INTRODUCTION TO MATERIALS SCIENCE...

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