Abstract:
A microfabricated device is fabricated by depositing a first metal layer on a substrate to provide a first electrode of an electrostatic actuator, depositing a first structural polymer layer over the first metal layer, depositing a second metal layer over said first structural polymer layer to form a second electrode of the electrostatic actuator, depositing an insulating layer over said first structural polymer layer, planarizing the insulating layer, etching the first structural polymer layer through the insulating layer and the second metal layer to undercut the second metal layer, providing additional pre-formed structural polymer layers, at least one of which has been previously patterned, and finally bonding the additional structural layers in the form of a stack over the planarized second insulating layer to one or more microfluidic channels. The technique can also be used to make cross over channels in devices without electrostatic actuators, in which case the metal layers can be omitted.
Abstract:
Provided is a workpiece bonding method that makes it possible to achieve a joining state with a high strength and to obtain a good repeatability of the joining state. A workpiece bonding method according to the present invention is a workpiece bonding method for bonding two workpieces to each other, each of the two workpieces being composed of a material selected from the group consisting of synthetic resin, glass, silicon wafer, crystal and sapphire, the workpiece bonding method including: a surface activation step of activating a bonded surface of at least one of the workpieces; and a laminating step of laminating the two workpieces such that respective bonded surfaces contact with each other, and a pretreatment step of removing moisture from the bonded surface of the workpiece that is to be subjected to the surface activation step is performed before the surface activation step is performed.
Abstract:
An interposer comprises a substrate and a plurality of posts. Each of the posts extends substantially through a thickness of the substrate. A method for forming an interposer comprises forming a fill hole in a first side of a substrate and a cavity in a second side of the substrate. The cavity is in fluidic communication with the fill hole. A plurality of posts is formed in the cavity. An encapsulant is injected through the fill hole into the cavity to encapsulate the plurality of posts.
Abstract:
A microchip (1) in which a resinous film can be inhibited from sagging into a channel. The microchip (1) comprises: a resinous base (2) having a channel groove forme therein; and a resinous film bonded to that side of the base on which the channel groove has been formed. A fine channel (3) including channels (3A) and channels (3B) is formed by the channel groove and the resinous film (10). The total length of the channels (3B), which extend parallel to the X direction for the resinous base (2), is large than the total length of the channels (3A), which extend parallel to the Y direction for the resinous base (2). The resinous base (2) has been bonded to the resinous film so that the sides parallel to the channels (3B) are parallel to the TD for the resinous film and that the sides parallel to the channels (3A) are parallel to the MD for the resinous film.
Abstract:
Procédé d'encapsulation d'au moins un micro-dispositif (100), comportant au moins la mise en oeuvre des étapes de : - solidarisation d'une face d'un premier substrat (102) comprenant au moins un matériau non perméable vis-à-vis de gaz nobles, contre un deuxième substrat comprenant du verre et d'épaisseur supérieure ou égale à environ 300 µm ; - gravure d'au moins une cavité (108) à travers le deuxième substrat telle que des parois latérales de la cavité soient formées au moins en partie par des portions restantes (110) du deuxième substrat et qu'une paroi supérieure de la cavité soit formée par une partie (112) de ladite face du premier substrat ; - scellement anodique des portions restantes du deuxième substrat contre un troisième substrat (114) comprenant le micro-dispositif, tel que le micro-dispositif soit encapsulé dans la cavité.