06546077 is referenced by 50 patents.

An emitter for a miniature X-ray apparatus comprises an insulating shell, an anode, and a cathode. The insulating shell includes a conical brazing surface, brazed to a conical brazing surface on the anode. The braze consists of a pure titanium layer and a pure tin layer. During brazing, the pure metals react and bond to the insulating shell and create a titanium-tin alloy between the pure layers. Pure tin is sputtered from tin sputter target onto the exposed brazing surfaces of the cathode cap and the anode. The insulating shell is placed in a vacuum chamber of deposition applicator, which deposits an active metal onto the shell brazing surface. In a brazing oven, the anode is placed within insulating shell such that the anode conical brazing surface and the shell conical brazing surface are contacting and aligned with each other. During brazing, the cathode is brought into contact with the insulating shell. The sealed emitters are placed in a sputtering machine's vacuum chamber. A metal is sputtered from a sputtering target to form a metal layer on the exterior of insulating shell.

Title
Miniature X-ray device and method of its manufacture
Application Number
9/760815
Publication Number
6546077 (B2)
Application Date
January 17, 2001
Publication Date
April 8, 2003
Inventor
Mark Gailloux
Eden Prairie
MN, US
Ali Jaafar
Eden Prairie
MN, US
Graham S Kerslick
Ithaca
NY, US
Eunsung Park
Arden Hills
MN, US
Victor I Chornenky
Santa Rosa
CA, US
Agent
Sterne Kessler Goldstein & Fox P L L C
US
Assignee
Medtronic Ave
CA, US
IPC
H01J 35/00
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