User: Hetal Gosavi

gravatar for Hetal Gosavi
Hetal Gosavi70
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Mumbai
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Posts by Hetal Gosavi

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Answer: A: Explain the importance of etch stop techniques with proper illustration.
... While it is always possible to use a measured etch rate and a specified time to determine the depth of etched features, it is highly desirable to be able to use a well-defined structural feature to stop an etch. There is a rich array of possible etch-stop structures in use. **Electrochemical Etch S ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Explain the process integration for typical MEMS Device.
... MEMS process integration – the technique by which processing steps are combined into an ordered sequence with the goal of creating a methodology that allows the production of functional MEMS devices. Following is the process flow diagram. ![][1] Some of the blocks of the process integration are a ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Explain scaling of MEMS devices.
... Miniaturizing machines and physical systems is an ongoing effort in human civilization. This effort has been intensified in recent years as market demands for: Intelligent, Robust, Multi-functional and Low cost consumer products has become stronger than ever. The only solution to produce these consu ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: What is the need of Lift off method? Explain this method with proper diagrams.
... Lift-off is used with metals that are difficult to etch with plasmas. Lift-off is a patterning process frequently used in MEMS for patterning materials that do not possess a reliable process to etch them (e.g., noble metals). The liftoff process is accomplished via the use of an intermediate layer a ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Explain any one MEMS device used in modern automobile systems with working princ
... - The Airbag is a very common automobile safety device. - Airbags are inflated by gas produced in a chemical reaction. Gas inflates the airbag with velocities of up to 320km/h. The entire process happens in 20-30 milliseconds. - It consists of the airbag cushion, a flexible fabric bag, inflation mo ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Explain fabrication of any one of the MEMS devices using Bulk micromaching techn
... - Micromachining is defined as the process of shaping Si or other material to realize 3 dimensional mechanical structure in miniature form. - The oldest micromachining technology is bulk micromachining. - This technique involves the selective removal of the substrate material in order to realize min ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Write short note on DRIE & its significance for MEMS device fabrication.
... **Reactive Ion Etching:** - Reactive ion etching (RIE) uses mid-level RF power and mid-range pressure to combine both physical and chemical etching in one process. - The positive ions from plasma bombard the wafer’s surface (physical etch) at the same time that the free radicals adsorb to the surfa ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Give two examples of combination of structural, sacrificial layers and enchants
... **Structural Layer –** - A layer having the mechanical and electrical properties needed for the component being constructed. (doped polycrystalline silicon, silicon nitride, some metals such as chrome, gold and aluminum-copper) - A layer of thin film material that comprises a mechanical device. Th ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Explain transduction pertaining to capacitive measurement, Piezo-resistive for M
... - The capacitive transducer or sensors is nothing but the capacitor with variable capacitance. - The capacitive transducer comprises of two parallel metal plates separated by air/ mica. - In the instruments using capacitive transducers the value of capacitance changes due to change in the value of i ...
written 5 weeks ago by Hetal Gosavi70
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Answer: A: Compare ripple carry adder with CLA
... Ripple carry adder - Succinctly, a ripple carry adder passes its carry bit through a long logic chain, which is very straightforward to design, but can have a very large delay. - A ripple carry adder is implemented purely with a half-adder and multiple full adders. The maximum delay is through the ...
written 6 weeks ago by Hetal Gosavi70

Latest awards to Hetal Gosavi

Popular Question 5 weeks ago, created a question with more than 1,000 views. For Air Bag Sensor (Accelerometer)
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Explain the Polymers (PMMA)
Popular Question 5 weeks ago, created a question with more than 1,000 views. For TCR (Temperature coefficient of resistance)
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Write short note on Wire Bonding techniques
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Compare wet etching and Dry etching
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Selectivity Ratios of Etchants
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Explain Surface Micromachining
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Architecture and working of cantilever
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Architecture and working of microheater.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Fabrication of pressure sensor
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Fabrication process of DMD
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Architecture and working of inkjet printer head
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Architecture, working and fabrication of Accelerometer
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Testing of reliability of MEMS and Microsystems
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Explain the Lithography.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Explain carry look ahead adder and its advantages.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Explain the necessity of Millers theorem with suitable example.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Give comparison between full custom and semi-custom design
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Draw and explain AMS design flow.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Write a short note on Gilbert cell.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Explain the Embedded system design life cycle/ development methodology.
Popular Question 5 weeks ago, created a question with more than 1,000 views. For Difference between RTOS and GPOS.