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1. What is a wafer? What is a substrate? What is a die?
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2. List the three major trends associated with improvement in microchip fabrication technology, and give a short description of each trend.
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3. What is the chip critical dimension (CD)? Why is this dimension important?
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4. Describe scaling and its importance in chip design.
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5. What is Moore's law and what does it predict?
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6. What is the advantage of gallium arsenide over silicon?
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7. What is the primary disadvantage of gallium arsenide over silicon?
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8. What is an active component? Give two examples of this type of component. ʲôÊÇÎÞÔ´Ôª¼þ£¬¾Ù³öÁ½¸öÎÞÔ´Ôª¼þµÄÀý×Ó
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9. What are some notable characteristics of bipolar technology? What is biggest drawback to bipolar technology?
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10. What are the benefits of the field-effect transistor (FET)?
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11. What are the two basic types of FETs? What is the major difference between them?
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12. What are the two categories of MOSFETs? How are they distinguishable from one another?
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13. What two IC technologies are used in BiCMOS?
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14. What could a digital/analog (D/A) converter chip
be used for? What could an analog/digital (A/D) chip be used for?
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15. Explain the difference between an enhancement-mode transistor and depletion-mode transistor with regards to their standby condition.
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16. Why is it necessary to have monocrystal silicon for wafer fabrication?
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17.Which crystal plane orientation is most common MOS? Which is most common for bipolar?
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18.Define crystal growth. What is the CZ method for crystal growth?
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19. List seven wafer quality requirements for a silicon wafer.
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20. What is an epitaxial layer, and why is it used on wafers?
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22¡¢List the six distinct production areas in a wafer fab and give a short description of each area.ÁгöоƬ³§ÖÐ6¸ö²»Í¬µÄÉú²úÇøÓò²¢¶Ôÿһ¸öÇøÓò×ö¼òµ¥µÄÃèÊö ´ð£ºÀ©É¢£ºÀ©É¢ÇøÒ»°ãÈÏΪÊǽøÐиßι¤ÒÕ¼°±¡Ä¤³Á»ýµÄÇøÓò¡£