Shadowing Practice: The Semiconductor Production Process Explained Clearly - Learn English Speaking with Video

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20 משפטים
אם המשפטים קצרים או ארוכים מדי, לחץ על ערוך כדי להתאים אותם.
1
Humble sand.
2
This is what the building blocks of the future are made of.
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But making them is a long process compromising a great many steps.
4
First, the silicon dioxide in the sand has to be converted into pure silicon.
5
After that, it is cut into wafer -thin disks.
6
In Dresden, these raw wafers are 300 millimeters in diameter and less than a millimeter thick.
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In our clean room, up to 35 ,000 chips are then made from each of these disks.
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In numerous process stages, the wafers are given their characteristic surface structure.
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After coating with a photoresist layer, the wafer surface is exposed, developed, and etched.
10
This results in the desired conductor structure.
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Such structures are hundreds of times finer than a human hair.
12
Dopants are then implanted in the material to increase the electrical connectivity of parts of the semiconductor. In subsequent phases,
13
this and other process steps are repeated until the entire layout of the chip has been deposited on the wafer.
14
This involves heating the wafer to more than 1 ,100 degrees Celsius, in some cases up to 27 times.
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Up to 200 measurements are done, and up to 26 exposures.
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All in all, this can mean as many as 700 processing steps and 14 weeks processing time.
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Once this is completed, the microchip is assembled from as many as 30 such layers, like a mini skyscraper.
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Each layer has its own function.
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Interconnecting them makes the microchip highly complex.
20
Semiconductor chips, the building blocks of our future.

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המלץ על סרטון

Vocabulary and speaking notes for this lesson

This video has 20 sentences and 242 words to shadow. The speech runs for 1:59. The speaker talks at a steady 122 words per minute, a comfortable pace for shadowing. Only 71% of the words are among the 3,000 most common in English, so the vocabulary is demanding.

Key vocabulary in this video

15 words from the video worth learning, with pronunciation and meaning:

WordPronunciationMeaning
layer noun/ˈleɪ̯ɚ/A single thickness of some material covering a surface.
chip noun/t͡ʃɪp/A small piece broken from a larger piece of solid material.
sand noun/sænd/Rock that is ground more finely than gravel, but is not as fine as silt (more formally, see grain sizes chart), forming beaches and deserts and also used in…
disk noun/dɪsk/A thin, flat, circular plate or similar object.
silicon noun/ˈsɪləˌkɑn/A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855.
semiconductor noun/ˌsɛmikənˈdʌktə/A substance with electrical properties intermediate between a good conductor and a good insulator.
thin adjective/ˈθɪn/Having little thickness or extent from one surface to its opposite.
thick adjective/θɪk/Relatively great in extent from one surface to the opposite in its smallest solid dimension.
exposure noun/ɪkˈspəʊ.ʒə(ɹ)/The condition of being exposed, uncovered, or unprotected.
mini adjective/ˈmɪn.i/Miniature, tiny, small.
electrical adjective/ɪˈlɛktɹɪkəl/Related to electricity (or electronics)
subsequent adjective/ˈsʌbsɪkwənt/Following in time; coming or being after something else at any time, indefinitely.
coat noun/ˈkoʊ̯t/An outer garment covering the upper torso and arms.
involve verb/ɪnˈvɑlv/To have (something) as a component or a related part; to comprise, to include.
deposit noun/dɪˈpɑ.zɪt/Sediment or rock that is not native to its present location or is different from the surrounding material. Sometimes refers to ore or gems.

Pronunciation to watch

  • The “th” sounds: thin /ˈθɪn/, thick /θɪk/
  • The “sh” and “zh” sounds: exposure /ɪkˈspəʊ.ʒə(ɹ)/, measurement /ˈmɛʒ.ə.mənt/
  • Long words — get the stress right: semiconductor /ˌsɛmikənˈdʌktə/, electrical /ɪˈlɛktɹɪkəl/, diameter /daɪˈæmɪdɚ/, characteristic /ˌkæɹ(ə)ktəˈɹɪstɪk/, interconnect /ˌɪn.tə.kəˈnɛkt/

How to practise with this video

  1. Listen to the whole video once without speaking and note the words you do not know.
  2. Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
  3. Record yourself and compare with the original, paying attention to words like layer, chip, sand.

מהי טכניקת השאדואינג?

שאדואינג היא טכניקת למידת שפה מבוססת מדע שפותחה במקור להכשרת מתורגמנים מקצועיים ופופולרית על ידי הפוליגלוט ד"ר אלכסנדר ארגואלס. השיטה פשוטה אך עוצמתית: אתה מקשיב לאודיו באנגלית ילידית וחוזר עליו בקול רם מיד — כמו צל העוקב אחרי הדובר עם עיכוב של 1–2 שניות בלבד. בניגוד להאזנה פסיבית או תרגילי דקדוק, שאדואינג מכריח את המוח והשרירים בפה לעבד ולשחזר דפוסי דיבור אמיתיים בו זמנית. מחקרים מראים שזה משפר משמעותית את דיוק ההגייה, האינטונציה, הקצב, הדיבור המחובר, הבנת השמיעה ושטף הדיבור — מה שהופך אותו לאחת השיטות היעילות ביותר להכנה לIELTS Speaking ולתקשורת באנגלית בעולם האמיתי.

טכניקת Shadowing: קרא את המדריך המלא שלב אחר שלב →