Abstract:
A method of fabricating an elastomeric structure, comprising : forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
Abstract:
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
Abstract:
According to the present invention, there is provided a micro-fluidic sensor system (6) including a micro-conduit (56) for carrying fluid therethrough having a flexible wall portion (18), at least one micro-fluidic actuator having a closed cavity, flexible mechanism defining a wall of the cavity (11) and flexible wall portion (18) of the micro-conduit for deflecting upon an application of pressure thereto, and expanding mechanism (14) disposed in the cavity for selectively expanding the cavity and thereby selectively flexing said expanding mechanism, and sensor mechanism in fluid communication with the micro-conduit for sensing the presence or absence of molecules. The present invention further provides for a micro-fluidic system for moving micro-fluid amounts including a micro-conduit and at least one micro-fluidic actuator in fluid communication with the micro-conduit.
Abstract:
A method of fabricating an elastomeric structure, comprising : forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
Abstract:
A microelectromechanical (MEMS) device (10) is provided that includes a microelectronic substrate (50) and a thermally actuated microactuator (20). For example, the MEMS device (10) may be a valve. As such, the valve may include at least one valve plate (30) that is controllably brought into engagement with at least one valve opening (40) in the microelectronic substrate (50) by selective actuation of the microactuator (20). While the MEMS device (10) can include various microactuators (20), the microactuator advantageously includes a pair of spaced apart supports (22) disposed on the substrate (50) and at least one arched beam (24) extending therebetween. The microactuator (20) may further include metallization traces (70) on distal portions (23) of the arched beams (24) to constrain the thermally actuated regions of arched beams to medial portions thereof. The valve may also include a latch (680) for maintaining the valve plate (30) in a desired position without requiring continuous energy input to the microactuator (20).
Abstract:
A method of fabricating an elastomeric structure for a micropump or valve comprising: forming a first elastomeric layer on top of a first micromachined mold (10), the first micromachined mold (10) having a first raised protrusion (11) which forms a first recess (21) extending along a bottom surface of the first elastomeric layer (20); forming a second elastomeric layer (22) on top of a second micromachined mold, the second micromachined mold having a second raised protrusion (13) which forms a second recess (23) extending along a bottom surface of the second elastomeric layer, bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel (30) forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.
Abstract in simplified Chinese:具有大致上刚性膜片的塑胶微射流构造,该膜片系在一个放松状态与一个致动状态之间致动,在放松状态中,膜片系坐落抵着基材的表面,且在致动状态中,膜片系被移动远离基材。如将可以从以下说明看出的,形成为具有这种膜片的微射流构造提供了制造的容易性及坚固的系统,以及立即可以制造之像是阀及泵的组件。
Abstract in simplified Chinese:简单的说,依据本发明的一具体例,一开关结构或是例如一阀件,马达或光学开关之类似物,可以用一热反应性聚合物为基础来架构。在一第一温度下热反应性聚合物可以处于一第一体积状态中,而在一第二温度下热反应性聚合物可以处于一第二体积状态中。在热反应性聚合物的体积上的变化可以被用来推动或拉引开关、阀件、电动机、光学开关,等等,以使得该结构运作。