What are the steps in IC fabrication?
1.3 IC Fabrication Process Steps
- Lithography: The process for pattern definition by applying thin uniform layer of viscous liquid (photo-resist) on the wafer surface.
- Etching: Selectively removing unwanted material from the surface of the wafer.
- Deposition: Films of the various materials are applied on the wafer.
What are the various steps involved in IC fabrication using photolithography?
Photolithography uses three basic process steps to transfer a pattern from a mask to a wafer: coat, develop, expose. The pattern is transferred into the wafer’s surface layer during a subsequent process. In some cases, the resist pattern can also be used to define the pattern for a deposited thin film.
Which transistor is used for IC fabrication?
MOSFETs
How many types of IC are there?
There are two main types of integrated circuits: digital ICs or analog ICs….Digital IC.
| i) | Small Scale Integration (SSI) where the number of transistors incorporated in a single IC chip is up to 100. |
|---|---|
| ii) | Medium Scale Integration (MSI) where the number of transistors incorporated in a single IC chip is from 100 to 1000. |
What is IC function?
An integrated circuit (IC), sometimes called a chip or microchip, is a semiconductor wafer on which thousands or millions of tiny resistors, capacitors, and transistors are fabricated. An IC can function as an amplifier, oscillator, timer, counter, computer memory, or microprocessor.
What is the role of IC in TV?
This IC television did not use IC circuits entirely. Rather, it used both IC circuitry and transistors. The IC circuit was used for the tuner, output, power supply, horizontal oscillation, and amplifier, as well as most of the video amplifier components. All ICs used were bipolar semiconductors.
What are the main functions of IC?
An integrated circuit, or IC, is small chip that can function as an amplifier, oscillator, timer, microprocessor, or even computer memory. An IC is a small wafer, usually made of silicon, that can hold anywhere from hundreds to millions of transistors, resistors, and capacitors.
What are the advantages of IC?
The advantages of ICs : (i) Extremely small in size, (ii) Low power consumption, (iii) Reliability, (iv) Reduced cost, (v) Very small weight and (vi) Easy replacement.
What is disadvantage of IC?
Limited power rating as it is not possible to manufacture high power (say greater than 10 W) ICs. Need of connecting inductors and transformers exterior to the semiconductor chip as it is not possible to fabricate inductor and transformers on the semiconductor chip surface.
What are the 4 types of packaging?
Let’s take a look at some of the different types of packaging options you can use to enhance your product & customer experience!
- Paperboard boxes. Paperboard is a paper-based material that is lightweight, yet strong.
- Corrugated boxes.
- Plastic boxes.
- Rigid boxes.
- Chipboard packaging.
- Poly bags.
- Foil sealed bags.
What is the name of IC package?
Flat packages
| Acronym | Full name | Remark |
|---|---|---|
| LQFP | Low-profile quad flat-package | – |
| QFN | Quad flat no-leads package | Also called as micro lead frame (MLF). |
| QFP | Quad flat package | – |
| MQFP | Metric quad flat-pack | QFP with metric pin distribution |
How do I know my IC grade?
The integrated circuit grade or temperature grade (or rating) is a method of classifying ICs based on their operating temperature – typically based on the intended purpose of a particular chip ….Samsung.
| Grade | Operating temperature | |
|---|---|---|
| Min | Max | |
| Industrial | -40°C / -40°F | 85°C / 185°F |
| Military | -55°C / -67°F | 125°C / 257°F |