Metal treatment – Process of modifying or maintaining internal physical... – Chemical-heat removing or burning of metal
Patent
1978-10-24
1981-07-21
Dean, R.
Metal treatment
Process of modifying or maintaining internal physical...
Chemical-heat removing or burning of metal
29578, 29590, 148174, 148187, 148190, 148191, 357 34, 357 59, 357 65, 427 85, 427 86, H01L 21225, H01L 2120
Patent
active
042796717
ABSTRACT:
A method for manufacturing a npn-type transistor includes steps of depositing phosphorus on a base region, covering the deposited phosphorus with a polycrystalline silicon layer and heating the deposited phosphorus to diffuse it into the base region to form an emitter region.
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Chang et al., "Fabrication of Junction Insulating Gate FET," I.B.M. Tech. Discl. Bull., vol. 13, No. 9, Feb. 1971, p. 2503.
Dean R.
Saba W. G.
Tokyo Shibaura Denki Kabushiki Kaisha
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