Miniaturized planar columns for use in a liquid phase separation apparatus

US6033628A · kind A · utility

Assignee

• AGILENT TECHNOLOGIES, INC. · US

Inventors

• Patrick Kaltenbach · Bischweier, DE
• Sally A. Swedberg · Santa Cruz, US
• Klaus Witt · Keltern, DE
• Fritz Bek · Remchingen, DE
• Laurie S. Mittelstadt · Belmont, US

Key dates

• Filing date: Apr 27, 1998
• Grant date: Mar 7, 2000
• Expiry date: Apr 27, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1064
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a method of forming a microchannel and/or microcavity structure by bonding together two elements (1, 2) having opposed plane surfaces of the same or different material, one or both surfaces having open channels and/or cavities, bonding is effected by applying to one or both element surfaces (1, 2) a thin layer (3) of a solution of a material capable of fusing with and having a lower melting point than that of the material or materials of the two element surfaces (1, 2) in a solvent which substantially does not dissolve the element surface material or materials. The solvent is then removed, and the two elements (1, 2) are brought together and heated to a temperature where the dissolved material is caused to melt but not the element surface material or materials.