MOS Capacitor on n-type Si. Consider a MOS capacitor built with aluminum as the metal, a...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
MOS Capacitor on n-type Si. Consider a MOS capacitor built with aluminum as the metal, a 50 nm thick silicon dioxide as the insulator, and n-type Si whose donor concentration is 1015 cm- -3. a) Determine the energy band diagram in thermal equilibrium after contact is established. Provide a sketch and calculate the depletion region thickness (if the semiconductor is in a state of depletion), the potential drop on the oxide, the band bending in the semiconductor (if the semiconductor is in a state of depletion), the work function of the semiconductor, the flat band voltage, the conduction and valence band offsets between the semiconductor and the oxide, and finally the potential barrier seen by electrons in the metal. b) In this structure the sign of the potential drop on the oxide and the band bending in the semiconductor are reversed (compared to the p-type substrate case in depletion) at the threshold of inversion so the relationship between the gate voltage and these potential drops is given as: VG- VFB = o's + pox From this derive an expression for the threshold voltage (Vr) and calculate a number. State the range of gate bias associated with depletion, accumulation and inversion. Note that at the threshold condition that o'= -2on. MOS Capacitor on n-type Si. Consider a MOS capacitor built with aluminum as the metal, a 50 nm thick silicon dioxide as the insulator, and n-type Si whose donor concentration is 1015 cm- -3. a) Determine the energy band diagram in thermal equilibrium after contact is established. Provide a sketch and calculate the depletion region thickness (if the semiconductor is in a state of depletion), the potential drop on the oxide, the band bending in the semiconductor (if the semiconductor is in a state of depletion), the work function of the semiconductor, the flat band voltage, the conduction and valence band offsets between the semiconductor and the oxide, and finally the potential barrier seen by electrons in the metal. b) In this structure the sign of the potential drop on the oxide and the band bending in the semiconductor are reversed (compared to the p-type substrate case in depletion) at the threshold of inversion so the relationship between the gate voltage and these potential drops is given as: VG- VFB = o's + pox From this derive an expression for the threshold voltage (Vr) and calculate a number. State the range of gate bias associated with depletion, accumulation and inversion. Note that at the threshold condition that o'= -2on.
Expert Answer:
Answer rating: 100% (QA)
a 1 Energy Band Diagram in Thermal Equilibrium In thermal equilibrium the energy band diagram for the MOS capacitor on ntype Si will show a flat band ... View the full answer
Related Book For
Fundamentals Of Momentum Heat And Mass Transfer
ISBN: 9781118947463
6th Edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
Posted Date:
Students also viewed these physics questions
-
Principal: $2,000 Rate: 4% per annum (compounded annually) Time: 4 years * Find the compound interest earned over the given period. . A
-
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
-
What do you believe is the most challenging aspect of using the economic analysis workbook? Briefly describe the challenge and any suggestion you have to reduce the challenge.
-
A wooden plank rests on two soup cans laid on their sides. Each can has a diameter of 6.5 cm, and the plank is 3.0 m long. Initially, one can is placed 1.0 m inward from either end of the plank, as...
-
Risky Corporation had sales of $3,000,000 for the year ended December 31, 2025. The unit selling price was $15. In making the sales, the company incurred the following costs and expenses....
-
A strong wind can blow a golf ball off the tee by pivoting it about point 1 as shown in Fig. P9.64. Determine the wind speed necessary to do this. Figure P9.64 U (1) 40.20 0.20 in. Radius = 0.845 in....
-
Perform the following estimations without using ca calculator. (a) Estimate the mass of water (kg) in an Olympic-size swimming pool. (b) A drinking glass is being filled from a pitcher. Estimate the...
-
First, use both the text and Brady v US to explain plea bargaining. What features must a guilty plea have in order to be valid? Which constitutional rights are implicated by pleading guilty? (Make...
-
Tracy Morgan is self-employed as a professional golf instructor. She uses the cash method of accounting and her SS# is 465-34-3389. Her principal business code is 812990. Tracy's business is located...
-
If fixed costs are $750,000 and variable costs are 80% of sales, what is the breakeven point in sales dollars?
-
Solve each equation using log properties. 1.logs (5x + 5)-log, (x - 1) = 0 2. Solve for a. log,4 + 2log a = 2log,(n + 1) I 3. The energy E. measured in kilocalones, to transport a substance from the...
-
2 . I have 2 gold coins, each 1 oz and 18K. I melt them to make a gold chain for myself. What is the purity of the gold chain? What is the weight of the gold chain?
-
Use the image to answer the following questions in order: 1. Which of the primate skulls represents a strepsirrhine? 2. Name one characteristic that led you to that conclusion. 3. Which of the...
-
S Book Print Activity Cost Pool Labour related Machine related Machine setups Production orders Product testing Packaging ferences General factory Estimated Overhead Cost $ 60,000 80,000 Expected...
-
Prepare T-Accounts Date February 1 Cash Description T. Michaels, Capital February 3 Office Supplies Accounts Payable February 4 Building Land Cash February 8 Cash Service Revenue February 10 Accounts...
-
In a survey of 500 students of a college, it was found that 49% liked watching football, 53% liked watching hockey and 62% liked watching basketball. Also, 27% liked watching football and hockey...
-
At 31 December 20X9, the end of the annual reporting period, the accounts of Huron Company showed the following: a. Sales revenue for 20X9, $ 2,950,000, of which one- quarter was on credit. b....
-
The Cooper Cooler is a novel cooling device that rotates a cylindrical beverage can within a chilled environment in order to cool down the beverage. In a related process shown in the figure, the...
-
For an asbestos cylinder with both height and diameter of 13 cm initially at a uniform temperature of 295 K placed in a medium at 810 K with an associated convective heat-transfer coefficient of 22.8...
-
Consider a hot dog to have the following dimensions and properties: diameter = 20 mm, c p = 3.35 kJ/kg K, = -880 kg/ m 3 , and k = 0.5 W/m K. For the hot dog initially at 5C, exposed to boiling...
-
The following figures relate to the production of product X: If the years production is 20,000 units and this product uses 25 per cent of total factory production, the unit cost for product X in...
-
Are depreciation expenses either too subjective or too arbitrary to provide useful information?
-
A company buys and sells units of product P as follows: Under a FIFO method, the gross profit on the sold item is: A. :20. B. :24. C. :25. D. :30. 1 January buy 2 at 30 1 February 1 March buy 3 at 40...
Study smarter with the SolutionInn App