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0905 Question

1. What is Tape Out

Milestone in the hardware design circle in integrated circuits (ICs).

Origin: the design file was written to a tape, sent out to fab for production

Currently: entirely digital, final steps before fabrication.

Meaning: substantial investment of time and resources

1.1. Other Important Event

Feasibility study

Requirement Specification

Architecture design

Detailed Design

Simulation

Tape out

First Silicon and Validation

2. Corn Type, fruit, sweet, crispy

Type:

  • Sweet corn, most common in USA, high sugar content
  • Field corn, more common in other parts of the world
    • used for animal feed, cornmeal, industrial
  • Waxy corn, popular in East Asia, give it a sticky, glutinous texture

3. Diabetes

Type

  1. Type 1: autoimmune reaction destroy insulin-producing cells, require lifelong insulin injections 2. Type 2: body become resistant to insulin, managed through diet

Symptoms

  • Frequent urination
  • Extreme thirst
  • Fatigue
  • Cuts long time to heal

Avoid:

  • Healthy diet
  • Workout
  • Weight management
  • Regualr check up

4. Stacked Sensor

Propertiees

  • higher readout speed
  • lower noise
  • HDR

Why: traditional sensor and circuitry compete for space

How: separates the photodiodes from the readout circuitry by stacking in layer.

  • free up space for more advanced circuitry

5. How Many Blood

How many? 7-8% of body weight

How to measure? radiolabeled albumin

  1. a known volume and concentration of albumin is injected 2. measure the albumin level after mix
    1. How long? generally 10-15 minutes

6. How is Paper Tissue made

Paper tissue

  1. Pulping, wood chips broken down
  2. Cleaning
  3. Forming
  4. Pressing
  5. Drying
  6. Cutting

How strong? Decided by

  • Raw material, long fiber result in stronger tissue
  • Manufacturing process: chemical pulping result stronger