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:
Jul. 05, 1988
Filed:
Oct. 05, 1987
Applicant:
Inventors:
Anthony E Bell, McMinnville, OR (US);
Lynwood W Swanson, Portland, OR (US);
Assignee:
Oregon Graduate Center, Beaverton, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2504 / ; 250425 ;
Abstract
A corrosion-resistant, long-life, high-capacity, power-efficient source substructure for a source of liquid-metal ions useable in focused-ion-beam apparatus. The substructure takes the form of an elongate carbon needle, pointed at one end, structurally supported entirely within the turns of an electrical heating coil having end leads which are conductively connected to, and structurally supported by, a pair of larger cross section electrical feeder legs.