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646687

Sigma-Aldrich

硅

wafer (single side polished), <100>, N-type, contains no dopant, diam. × thickness 2 in. × 0.5 mm

同義詞:

硅元素

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About This Item

線性公式:
Si
CAS號碼:
7440-21-3
分子量：:
28.09
EC號碼:
231-130-8
MDL號碼:
MFCD00085311
分類程式碼代碼:
12352300
PubChem物質ID:
24883476
NACRES:
NA.23
暫時無法取得訂價和供貨情況

形狀

crystalline (cubic (a = 5.4037))
wafer (single side polished)

品質等級

100

不包含

dopant

直徑× 厚度

2 in. × 0.5 mm

bp

2355 °C (lit.)

mp

1410 °C (lit.)

密度

2.33 g/mL at 25 °C (lit.)

半導體屬性

<100>, N-type

SMILES 字串

[Si]

InChI

1S/Si

InChI 密鑰

XUIMIQQOPSSXEZ-UHFFFAOYSA-N

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相關類別

一般說明

硅晶片或基底的“切片”可应用于集成电路、太阳能电池等的制造中。它们可用作各种微电子设备的基底。

應用

  • Innovative Solutions for High-Performance Silicon Anodes in Lithium-Ion Batteries: Overcoming Challenges and Real-World Applications.：该文解决了在锂离子电池中采用高性能硅负极的挑战和实际应用，提供增强效率的创新解决方案(Khan et al., 2024)。
  • Strain Engineering: Perfecting Freestanding Perovskite Oxide Fabrication.：研究改进了自支撑钙钛矿氧化物制造的应变工程，对于各种高纯硅的学术应用有重要意义(Yun et al., 2024)。

物理性質

氧含量：≤ 1~1.8×1018/cm3；碳含量：≤ 5×1016/cm3；晶棒直径：1~8″
零涡旋缺陷。蚀坑密度 (EPD) < 100 (cm-2)。电阻率 100 - 3000Ωcm

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類（WGK）

WGK 3

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
MKCW6935
MKCT4983
MKCT4982
MKCT4980
MKCT4978

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Molecular monolayers on silicon surfaces.
Lopinski GP and Wayner DDM.
Material Matters, 3(2), 38-38 (2008)
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A spin-casting process for fabricating polycrystalline silicon sheets for use as solar cell wafers is proposed, and the parameters that control the sheet thickness are investigated. A numerical study of the fluidity of molten silicon indicates that the formation of
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We investigated the thin film growths of hydrogenated silicon by hot-wire chemical vapor deposition with different flow rates of SiH4 and H2 mixture ambient and fabricated thin film solar cells by implementing the intrinsic layers to SiC/Si heterojunction p-i-n structures.
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Mesoporous Si-C-O fibers were fabricated by air activation of a kind of carbon-rich SiC-C fibers at 600 degrees C. The SiC-C fibers were prepared from the hybrid precursor of polycarbosilane and pitch through melt-spinning, air curing and pyrolysis in nitrogen.
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Questions

1–4 of 4 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  3. Bonjour, quelle est la signification d'un type N si il n'a pas pas de dopant ?

    1 answer

    1. The Si wafer 646687 contains impurities even it is un-doped. So it could be N type.

      Helpful?

  4. Do the 2" Si wafers come with a flat or not?

    1 answer

    1. The silicon wafers have 2 flats <110><110>.

      Helpful?

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