RINGLESS GETTER-PROVIDED ELECTRONIC DEVICE, FIXING METHOD FOR RINGLESS GETTER, AND ACTIVATING METHOD FOR RINGLESS GETTER

Title:

RINGLESS GETTER-PROVIDED ELECTRONIC DEVICE, FIXING METHOD FOR RINGLESS GETTER, AND ACTIVATING METHOD FOR RINGLESS GETTER

Document Type and Number:

WIPO Patent Application WO/2003/096373

Kind Code:

A1

Abstract:

An electronic device such as a vacuum fluorescent display tube for simply fixing simple-structure ringless getters and increasing a degree of freedom in disposing ringless getters. Ringless getters (G11-G13) are fixed to the inner surface of a glass anode substrate (111) by a laser beam. A laser beam, applied to ringless getters (G11-G13) from the outer side of the anode substrate (111), passes through the anode substrate (111) and heats and melts the getters (G11-G13), the inner surface of the substrate (111) being melted by the heating. Since the molten portions of the getters (G11-G13) and the substrate (111) solidify when left cooled, the getters (G11-G13) are fixed to the substrate (111). Ringless getters (G11-G13) are obtained by press-forming a getter material into an arbitrary shape.

Inventors:

ISHIGE SHOGO (JP)
YONEZAWA YOSHIHISA (JP)
OGAWA YUKIO (JP)

Application Number:

PCT/JP2003/005772

Publication Date:

November 20, 2003

Filing Date:

May 08, 2003

Export Citation:

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Assignee:

FUTABA DENSHI KOGYO KK (JP)
ISHIGE SHOGO (JP)
YONEZAWA YOSHIHISA (JP)
OGAWA YUKIO (JP)

International Classes:

H01J7/18; H01J9/38; H01J29/94; H01J31/15; H01J9/39; (IPC1-7): H01J29/94; H01J7/18; H01J9/39; H01J31/15; B01J19/12

Domestic Patent References:

WO1999017329A1	1999-04-08
WO1998026443A1	1998-06-18

Foreign References:

JP2003022770A	2003-01-24
JP2001052634A	2001-02-23
JPH10188829A	1998-07-21
EP0944109A1	1999-09-22

Other References: