Method of increasing the grain size of polycrystalline materials

Details Method of increasing the grain size of polycrystalline materials Method of increasing the grain size of polycrystalline materials

1981-06-24

1983-09-27

Roy, Upendra

Metal treatment

Compositions

Heat treating

29576B, 136258, 148187, 156620, 357 91, 427 531, H01L 21263

Patent

active

044067097

ABSTRACT:
Crystal grain size in a material is increased by scanning the material with an appropriately directed energy beam. Short-term oscillation in the scan, and a particular temperature gradient configuration in the wake of the scan, results in growth of large-grain crystallites.

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patent: 4309225 (1982-01-01), Fan et al.
patent: 4330363 (1982-05-01), Biegesen
Maserjian, Solid State Electronics, vol. 6, 1963, pp. 477-484.
Gibbons in Proceedings of the Symposium on Laser and Electron Beam Processing of Electronic Materials, The Electrochem. Soc., Princeton, vol. 80--1, 1980, pp. 1-25.
Biegelson et al. in Laser--Materials Processing, Elsevier North Holland Publishing Co., 1981, p. 487, Ed. Gibbons et al.
Williams et al., Appl. Phys. Letts., 33, (1978), 542.
Murakami et al., Appl. Phys. Letts., 35, (1979), 628.
Gat et al., Appl. Phys. Letts., 33, (1978), 775.

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