IMPROVED METHODS OF FABRICATING MICROELECTROMECHANICAL AND MICROFLUIDIC DEVICES

    公开(公告)号:CA2374666A1

    公开(公告)日:2000-12-21

    申请号:CA2374666

    申请日:2000-06-14

    Applicant: KIONIX INC

    Abstract: Three fundamental and three derived aspects of the present invention are disclosed. The three fundamental aspects each disclose a process sequence th at may be integrated in a full process. The first aspect, designated as "latent masking", defines a mask in a persistent material like silicon oxide that is held abeyant after definition while intervening processing operations are performed. The laten oxide pattern is then used to mask an etch. The second aspect, designated as "simultaneous multi-level etching (SMILE)", provides a process sequence wherein a first pattern may be given an advanced start relative to a second pattern in etching into an underlying material, such that the first pattern may be etched deeper, shallower, or to the same depth as the second pattern. The third aspect, designated as "delayed LOCOS", provides a means of defining a contact hole pattern at one stage of a process, then using the defined pattern at a later stage to open the contact holes. The fourth aspect provides a process sequen ce that incorporates all three fundamental aspects to fabricate an integrated liquid chromatography (LC)/electrospray ionization (ESI) device. The fifth aspect provides a process sequence that incorporates two of the fundamental aspects to fabricatean ESI device. The sixth aspect provides a process sequence that incorporates two of the fundamental aspects to fabricate an LC device. The process improvements described provide increased manufacturing yield and design latitude in comparison to previously disclosed methods of fabrication.

    Improved methods of fabricating microelectromechanical and microfluidic devices

    公开(公告)号:AU5612100A

    公开(公告)日:2001-01-02

    申请号:AU5612100

    申请日:2000-06-14

    Applicant: KIONIX INC

    Abstract: Three fundamental and three derived aspects of the present invention are disclosed. The three fundamental aspects each disclose a process sequence that may be integrated in a full process. The first aspect, designated as "latent masking", defines a mask in a persistent material like silicon oxide that is held abeyant after definition while intervening processing operations are performed. The latent oxide pattern is then used to mask an etch. The second aspect, designated as " simultaneous multi- level etching (SMILE)", provides a process sequence wherein a first pattern may be given an advanced start relative to a second pattern in etching into an underlying material, such that the first pattern may be etched deeper, shallower, or to the same depth as the second pattern. The third aspect, designated as "delayed LOCOS", provides a means of defining a contact hole pattern at one stage of a process, then using the defined pattern at a later stage to open the contact holes. The fourth aspect provides a process sequence that incorporates all three fundamental aspects to fabricate an integrated liquid chromatography (LC)/electrospray ionization (ESI) device. The fifth aspect provides a process sequence that incorporates two of the fundamental aspects to fabricate an ESI device. The sixth aspect provides a process sequence that incorporates two of the fundamental aspects to fabricate an LC device. The process improvements described provide increased manufacturing yield and design latitude in comparison to previously disclosed methods of fabrication.

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