The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
Jan. 24, 2006
Yoshifumi Nishino, Chiba, JP;
Hiroaki Uetake, Chiba, JP;
Yuki Hoshi, Chiba, JP;
Seiko Instruments Inc., , JP;
Abstract
A method for producing an airtight terminal having an annular stem, a lead passing through the stem and formed of a conductive material, and a filler for fixing the lead in the stem includes (1) a lead contour formation step of disposing a base and a lead formation portion on a plate- or strip-shaped conductive material and forming a contour of the lead on the lead formation portion with at least one end of the lead connected to the base, (2) a filler shaping and sintering step of filling the lead having a contour with the filler in a predetermined position and shaping and sintering the filler, (3) a stem mounting step of mounting the stem to a perimeter of the sintered filler, (4) a firing step of heating, melting, and cooling the sintered filler in the stem and bringing the lead into close contact with the stem to fix the lead to the stem through the filler, (5) a metal film formation step of forming a metal film on a surface of the lead, and (6) a cutting step of separating the one end of the lead from the base.