Abstract:
The present invention relates to pressure sensor and more particularly self-calibrated miniaturized pressure sensor designed for monitoring applications in automotive, industrial, medical and consumer products. One of the advantages of the present invention is able to detect self-calibration of the pressure sensor at both the initial state of the device or during operation. Another advantage of the present invention is that the self-calibrated miniaturized pressure sensor of the present invention enables the user to know the exact condition of the deformed diaphragm structure to ensure that the measured results are representative of the actual applied external pressure instead of the internal mechanical failure of the diaphragm structure. The present invention further provides a considerable reduction of materials with even greater efficiency and economically during operation.
Abstract:
The present invention generally relates to a method of forming nanotubes or nanowires device in an opening, more particularly the present invention relates to method of forming device structures using random nanotubes or nanowires formations. The device with nanostructrures as formed according to the method described in the present invention comprises first, a substrate (11). Then, at least a conductive layer (21), at least a dielectric layer (22), and at least a catalyst layer (23) deposited on the substrate (11) for structuring the device, wherein the catalyst layer (23) is sandwiched between conductive layers (21) of two devices of the same type. An opening (24) is etched through said layers for, after which a plurality of nanostructures (25) is formed, bridging conductive layers within one of the two devices.
Abstract:
The present invention relates to a method (100) of forming graphene nanomesh comprising the steps of providing an oxide layer on top of the substrate (101) as an insulating layer, depositing a metal seed layer on a substrate (102) via physical vapor deposition technique; and growing a graphene layer on the metal seed layer (103) via chemical vapor deposition, whereby said graphene layer grows into the graphene nanomesh on the metal seed layer. The method (100) further comprising a step of transferring the graphene nanomesh to another substrate (104).
Abstract:
Apparatus for characterizing a sensing element which comprises of at least one gas chamber (301), at least one gas connection means, at least two electrical connection means (306), at least one heater (309), at least one sealing means (310) and at least one locking means. The characterization process of said sensing element can be carried out at wafer level through resistance measurement, whereby said sensing element can be a blanket sensing element before proceed to fabricating of full sensor device. The connection means comprises at least one spring in connection with an electrode for improved contacting of the workpiece.
Abstract:
An integrated packaged microchip (100) including at least one environmental sensor (104) and at least one Read-Out Integrated Chip (ROIC) (102) is provided, characterized in that, the integrated packaged microchip (100) further includes an etched opening (108) of the environmental sensor (104) exposed to a sensable environment, using at least one layer of glass wafer (101,106) and at least one layer of silicon wafer (107).
Abstract:
The present invention relates to a method (200) of forming graphene bump structure (100) comprising the steps of providing (210) a substrate (10); etching (220) the substrate (10) to form a cavity structure (20); growing (230) a silicon dioxide layer (30) on top of the substrate (10); depositing (240) a thin metal catalyst layer (40) on top of the substrate (30); synthesizing (250) graphene layer (50) on top of the metal catalyst layer (40); depositing (260) an epoxy-based photoresist (60); removing (270) the thin metal catalyst layer (40), the silicon dioxide layer (30) and the epoxy-based photoresist (60) from the substrate (10); and patterning (280) the epoxy-based photoresist (60) to remove from the cavity structure (20) to form the graphene bump structure (100).
Abstract:
An improve microfluidic device (10) is configured to improve in microyalve system, the microfluidic device is in the form of rotary compact disc, comprising four substrate which a first substrate (20) having at least main reservoir (22) and secondary reservoir (24) containing working fluid (26), a second substrate (30) with at least a microvalve in the formed of diaphragm (32) structure which is actuated by the working fluid (26), a third substrate (40) with at least one reservoir (46) for fluid sample (44) and a microfluidic structure (42) as fluid sample pathway and a fourth substrate (50) with at least one microchannel (54) as an air flow passage. The microfluidic device has improved the valve system by applying a microchannel (54) that has at least two vent holes (52) and constriction feature (56) to allow and accelerate air from external environment to flow and generate pressure difference in order to cause the movement of said working fluid (26) for the working fluid to move the passive microvalve.
Abstract:
The present invention provides a chemo-resistive gas sensor in which consists of two chemo-resistive sensor elements (16, 36) placed on both sides of a micro-hotplate array (26). It is capable of providing lower power consumption compared to existing one-side sensing membrane gas sensor. An embodiment of the invention has the two sensor elements to be of same material to increase the sensitivity of the device. Another embodiment of the invention has two sensor elements of different material to allow different gas to be monitored. The proposed two membranes may be arranged to provide multiple gas solution for remote application and device miniaturization.
Abstract:
The invention discloses an apparatus and methods of puncturing bubbles from fluid in a microfluidic channel (104). The primary sharp protuberance (103) punctures the larger bubbles. The air vent (102) traps and removes the bubbles created after the larger bubbles have been broken by primary sharp protuberance (103). The secondary sharp protuberance (106) punctures the escaped bubbles which were not broken by the primary sharp protuberance (103) or not removed by air vent (102). Various sharp protuberances array can be integrated inside the microfluidic channel (104) to puncture the bubbles in the fluid flow path.
Abstract:
The present invention describes a novel method of fabricating nano-resistors (22) which allows full integration with standard CMOS fabrication process. The resistor comprises long and thin nano-structures as resistive element. It is formed by conductive nano-spacers (18B) on insulating layer. An embodiment of such structure is polysilicon nano-structures doped or implanted with n-type or p-type ions (20) to improve material conductance. The electrical properties of the device will change with respect to the dimension of these nano-structures. Resistors with polysilicon nano-structures down to 10 nm can be produced with resulting measured resistance in the MOhm scale.