To aim at a prevention of an occurrence of failure in and an extension of the life span of an incandescent light bulb by reducing the impact of an external force, which is applied to an outer lead wire positioned outside a bulb, on the connections between the lead wire and another element when manufacturing the incandescent light bulb, especially in a socket mounting process. In an incandescent light bulb wherein a filament assembly having filaments and lead wires which support the filaments is sealed in a bulb, a shape which, being easy to bend, enables a reduction in the impact of an applied external force on another element is imparted to a region of a predetermined length which includes the boundary of the lead wires between inside and outside the bulb. For example, a region in which the cross-sectional shape of the lead wires is changed by crushing is provided.

To aim at a prevention of an occurrence of failure in and an extension of the life span of an incandescent light bulb by reducing the impact of an external force, which is applied to an outer lead wire positioned outside a bulb, on the connections between the lead wire and another element when manufacturing the incandescent light bulb, especially in a socket mounting process. In an incandescent light bulb wherein a filament assembly having filaments and lead wires which support the filaments is sealed in a bulb, a shape which, being easy to bend, enables a reduction in the impact of an applied external force on another element is imparted to a region of a predetermined length which includes the boundary of the lead wires between inside and outside the bulb. For example, a region in which the cross-sectional shape of the lead wires is changed by crushing is provided.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.

An incandescent lamp is provided which prevents disconnection of a coupling part between a filament and a lead wire and also which improves impact resistance. A lead wire 4 has, in a standing portion 11 inside of a bulb 2, a first zone 19a to a third zone 19c in order from a top. The third zone 19c further penetrates through a pinch seal part 3 while firmly fixed thereto. The first zone 19a and the second zone 19b are formed of materials consisting primarily of molybdenum and nickel, respectively. The third zone 19c is formed of a Dumet wire 29.

An incandescent lamp is provided which prevents disconnection of a coupling part between a filament and a lead wire and also which improves impact resistance. A lead wire 4 has, in a standing portion 11 inside of a bulb 2, a first zone 19a to a third zone 19c in order from a top. The third zone 19c further penetrates through a pinch seal part 3 while firmly fixed thereto. The first zone 19a and the second zone 19b are formed of materials consisting primarily of molybdenum and nickel, respectively. The third zone 19c is formed of a Dumet wire 29.