Thin EFG Octagons: Semiannual Subcontract Report, 1 April 1993 - 30 September 1993
This report describes work to advance the manufacturing line capabilities in crystal growth and laser cutting of Mobil Solar`s unique edge-defined film-fed growth (EFG) octagon technology and to reduce the manufacturing costs of 10-cm {times} 10-cm polycrystalline silicon EFG wafers. The report summarizes the significant technical improvements in EFG technology achieved in the first 6 months of the PVMaT Phase 2 and the success in meeting program milestones. Technical results are reported for each of the three main pregrain areas: Task 5 -0 -- Thin octagon growth (crystal growth) -- to reduce the thickness of the octagon to 200 microns; Task 6 -- Laser cutting-to improve the laser cutting process so as to produce wafers with decreased laser cutting damage at increased wafer throughput rates; and Task 7 -- Process control and product specification --to implement advanced strategies in crystal growth process control and productivity designed to increase wafer yields.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 10134916
- Report Number(s):
- NREL/TP-411-6399; ON: DE94006855; BR: WM1020000
- Resource Relation:
- Other Information: PBD: Mar 1994
- Country of Publication:
- United States
- Language:
- English
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Mobil Solar Energy Corporation Thin EFG Octagons, Annual Subcontract Report, 1 April 1992 - 30 September 1992
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