String stabilized ribbon growth a method for seeding same

Patent · 25 August 1987

OSTI ID:866352

Sachs, Emanuel M ^[1]

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1. 39 Harding Ave., Belmont, MA 02178

This invention is a method of initiating or seeding the growth of a crystalline or polycrystalline ribbon by the String Stabilized Ribbon Growth Method. The method for seeding the crystal growth comprises contacting a melt surface with a seed and two strings used in edge stabilization. The wetted strings attach to the wetted seed as a result of the freezing of the liquid melt. Upon drawing the seed, which is attached to the strings, away from the melt surface a melt liquid meniscus, a seed junction, and a growth interface forms. Further pulling of the attached seed causes a crystal ribbon to grow at the growth interface. The boundaries of the growing ribbon are: at the top the seed junction, at the bottom the freezing boundary of the melt liquid meniscus, and at the edges frozen-in strings.

• Assignee: Sachs; Emanuel M. (39 Harding Ave., Belmont, MA 02178)
• Patent Number(s): US 4689109
• Application Number: 06/588,701
• OSTI ID: 866352
• Country of Publication: United States
• Language: English

Related Subjects

/117/136/264/
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