Dual filament lamp for rapid temperature processing

Details Dual filament lamp for rapid temperature processing Dual filament lamp for rapid temperature processing

2011-04-26

2011-04-26

Patel, Nimeshkumar D (Department: 2879)

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For filament

C313S115000, C313S579000, C313S250000, C313S271000, C313S316000, C313S344000

Reexamination Certificate

active

07932665

ABSTRACT:
A lamp (10), which can be used in rapid thermal processing (RTP), has a lamp envelope (12) arrayed along a longitudinal axis (14) and has a top (16) and a bottom (18). A first coiled-coil filament (20) having a first lead-in (20a) and a second coiled-coil filament (22) having a second lead-in (22a), are parallelly arrayed to each other and to the longitudinal axis (14) within the envelope (12). A serial connector (24) joins the first and second filaments; and an electrically insulating support (26) is positioned near the bottom (18) of the lamp envelope (12). The first lead-in (20a), the second lead-in (22a) and at least a portion (24a) of the serial connector (24) are sealed within the insulating support26whereby the first and second lead-ins (20a,22a) and the at least a portion (24a) of the serial connector (24) provide the only support for the first and second filaments (20, 22). In a preferred embodiment, the first and second filaments (20, 22) have a wire diameter twice the diameter of a nominal CC6 filament.

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