| 摘要 |
984,700. Pulling dendritic crystals. TEXAS INSTRUMENTS Inc. May 10, 1962 [May 12, 1961], No. 18016/62. Heading B1S. A dendritic crystal is pulled from a supercooled portion of a melt, the remaining melt being above the melting point. The melt may be of silicon or germanium. Initial heating may be by induction. The supercooled portion of the melt may be 5-10 ‹C. below the melting point. Supercooling may be by direct contact with an inert cooling gas, Fig. 4, or by indirect gas cooling of a portion of the melt having a depth of #-“ inch, Fig. 1 or 3. The crucible containing the melt may be of graphite with a quartz liner. |
