101 results about "Strip tests" patented technology

A method of making a lead frame and a partially patterned lead frame package with near-chip scale packaging lead-count, wherein the method lends itself to better automation of the manufacturing line and improved quality and reliability of the packages produced therefrom. A major portion of the manufacturing process steps is performed with a partially patterned strip of metal formed into a web-like lead frame on one side so that the web-like lead frame is also rigid mechanically and robust thermally to perform without distortion or deformation during the chip-attach and wire bond processes, both at the chip level and the package level. The bottom side of the metal lead frame is patterned to isolate the chip-pad and the wire bond contacts only after the front side, including the chip and wires, is hermetically sealed with an encapsulant. The resultant package being electrically isolated enables strip testing and reliable singulation.

A method of making a lead frame and a partially patterned lead frame package with near-chip scale packaging (CSP) lead-counts is disclosed, wherein the method lends itself to better automation of the manufacturing line as well as to improving the quality and reliability of the packages produced therefrom. This is accomplished by performing a major portion of the manufacturing process steps with a partially patterned strip of metal formed into a web-like lead frame on one side, in contrast with the conventional fully etched stencil-like lead frames, so that the web-like lead frame, which is solid and flat on the other side is also rigid mechanically and robust thermally to perform without distortion or deformation during the chip-attach and wire bond processes, both at the chip level and the package level. The bottom side of the metal lead frame is patterned to isolate the chip-pad and the wire bond contacts only after the front side, including the chip and wires, is hermetically sealed with an encapsulant. The resultant package being electrically isolated enables strip testing and reliable singulation without having to cut into any additional metal. The use of the instant partially patterned lead frame in making ELP, ELPF and ELGA-type CSPs is also disclosed.

A method of making a lead frame and a partially patterned lead frame package with near-chip scale packaging lead-count, wherein the method lends itself to better automation of the manufacturing line and improved quality and reliability of the packages produced therefrom. A major portion of the manufacturing process steps is performed with a partially patterned strip of metal formed into a web-like lead frame on one side so that the web-like lead frame is also rigid mechanically and robust thermally to perform without distortion or deformation during the chip-attach and wire bond processes, both at the chip level and the package level. The bottom side of the metal lead frame is patterned to isolate the chip-pad and the wire bond contacts only after the front side, including the chip and wires, is hermetically sealed with an encapsulant. The resultant package being electrically isolated enables strip testing and reliable singulation.

A method of making a lead frame and a partially patterned lead frame package with near-chip scale packaging (CSP) lead-counts is disclosed, wherein the method lends itself to better automation of the manufacturing line as well as to improving the quality and reliability of the packages produced therefrom. This is accomplished by performing a major portion of the manufacturing process steps with a partially patterned strip of metal formed into a web-like lead frame on one side, in contrast with the conventional fully etched stencil-like lead frames, so that the web-like lead frame, which is solid and flat on the other side is also rigid mechanically and robust thermally to perform without distortion or deformation during the chip-attach and wire bond processes. The bottom side of the metal lead frame is patterned to isolate the chip-pad and the wire bond contacts only after the front side, including the chip and wires, is hermetically sealed with an encapsulant. The resultant package being electrically isolated enables strip testing and reliable singulation without having to cut into any additional metal. The use of the instant partially patterned lead frame in making ELP, ELPF and ELGA-type CSPs is also disclosed.

An object of the present invention is to provide a graphite film, and a graphite composite film both having an excellent thermal diffusivity which can sufficiently manage heat dissipation of electronic instruments, precision instruments and the like, along with an excellent flex resistance which can withstand application to bent portions.

Means for Resolution of the present invention is a graphite film exhibiting the number of reciprocal foldings being 10,000 times or more as measured using a rectangular strip test piece having a width of 15 mm until the test piece breaks in a MIT folding endurance test under conditions of: a curvature radius R of the bending clamp being 2 mm; a left-and-right bending angle being 135°; a bending rate being 90 times/min; and a load being 0.98 N.

A disposable glucometer is disclosed which includes a testing region for receiving a test strip and electronic components to perform blood glucose monitoring, a cell phone interface for relaying test results to a monitoring station or server (which can be through a Bluetooth radio), and a multi-strip test strip holder. The glucometer includes a mechanism to automatically load test strips, one at a time, from the multi-strip test strip holder into the testing region, and a mechanism to eject the strip from the testing region after the test is complete. The test strip holder is preferably encased in a transparent material or otherwise includes a visual indicator so that the number of strips remaining strips and available for testing can be determined. In one embodiment, the entire unit is disposable, and is discarded when all of the strips have been used. In another embodiment, the test strip holder portion of the unit is removed and replaced with a new test strip holder which is loaded with test strips.

The invention relates generally to harvesters and, more particularly, to a combine for harvesting row crops, which has been modified, to collect and measure grain from continuously from a plurality of strip test plots.

The invention provides a method for detecting the interface binding strength of an aluminum-steel composite material for soldering. The method can be used for accurately detecting the aluminum-steel interface binding strength and quantifying the interface binding effect of the aluminum-steel composite material for the soldering. The method comprises the following steps: firstly, preparing a test sample of the aluminum-steel composite material and carrying out a stripping test on the test sample; and calculating according to a test result to obtain a binding strength value of an aluminum-steel interface. The method is characterized in that the preparation of the test sample comprises the following steps: soldering and connecting a metal reinforced layer on the surface of an aluminum layer of the sample and forming a compound layer by the metal reinforced layer and the aluminum layer of the sample. The binding strength of the metal reinforced layer in the compound layer and the aluminum layer of the sample is greater than the binding strength of the aluminum-steel interface; in the stripping test, the compound layer and a steel layer in the sample are stripped by a tension tester.

A method of making a lead frame and a partially patterned lead frame package with near-chip scale packaging (CSP) lead-counts is accomplished by performing a major portion of the manufacturing process steps with a partially patterned strip of metal formed into a web-like lead frame on one side, so that the web-like lead frame, which is solid and flat on the other side is also rigid mechanically and robust thermally to perform without distortion or deformation during the chip-attach and wire bond processes, both at the chip level and the package level. The bottom side of the metal lead frame is patterned to isolate the chip-pad and the wire bond contacts only after the front side, including the chip and wires, is hermetically sealed with an encapsulant. The resultant package being electrically isolated enables strip testing and reliable singulation without having to cut into any additional metal.

Strip testing is applied to a plurality of integrated circuit dies that are each encapsulated in an encapsulant, that each have a set of externally accessible leads connected thereto, and that are electrically isolated from one another. Provision is made for the strip testing to be performed without mounting the encapsulated integrated circuit dies on a support tape.

A method is taught for the accurate determination of the premature rupture of membranes (PROM), defined as spontaneous rupture of membranes before the onset of uterine contractions. More specifically, a lateral flow assay strip tests for at least two antigens to greatly limit or eliminate the possibility of false negatives. A built in timer in the cassette holding the lateral flow assay further increases the accuracy of the test. A collection buffer vial with self-contained shipping and dropper caps and built in stand is also taught.

The invention relates to a test device, which has a pretreatment part covered by a cover (2) having a hole (3) and connected by a hinge (A). The pretreatment part is mounted on the same base (1) as a test strip (not shown). In the lid (2) and the lid of the base are devices (7, 8 and 9) for supporting, fastening and fixing the pretreatment layers, forming excess liquid collection chambers (6), and controlling the flow of sample solutions and diluents. The test device is used in field tests and clinical methods, especially in emergency situations where fast results are required (Fig. 8).

Lateral flow immunochromatographic strip tests for the detection of human semen, method of detecting human semen, and methods of manufacturing ICS tests for the detection of human semen are described

The invention relates to a high-strength/toughness X90 hot-rolled steel strip for spiral submerged arc welded pipes, which is composed of the following components in percentage by weight: 0.03-0.06% of C, 0.25-0.35% of Si, 1.80-2.10% of Mn, at most 0.012% of P, at most 0.002% of S, 0.10-0.25% of Cr, 0.15-0.35% of Mo, 0.06-0.11% of Nb, 0.009-0.02% of Ti and at most 0.003% of N. CEpcm(%)=C+Si/30+(Cr+Mn+Cu)/20+Mo/15+V/10+Ni/60+5B<=0.2%. The production method comprises the following steps: smelting, and carrying out continuous casting to obtain a blank; heating the casting blank; carrying out hot rolling; carrying out laminar cooling; and coiling. When the included angle between the steel strip test sample direction and the rolling direction is 30 degrees, Rp0.2 is 630-720 MPa, Rm is greater than or equal to 730 MPa, Rp0.2/Rm is less than or equal to 0.90, the elongation percentage A is greater than or equal to 18%, Agt is greater than or equal to 6%, the -15 DEG C DWTT cross-section shearing rate SA is greater than or equal to 95%, HV10 is less than or equal to 265, the ballistic work single value at -20 DEG C is greater than or equal to 285J, and the ballistic work average value at -20 DEG C is greater than or equal to 355J, thereby completely satisfying the requirements of long distance and high efficacy for the spiral submerged arc welded pipe.

The invention relates to the technical field of waterproof coiled material, and especially relates to a portable coiled material tester and a coiled material test method; the tester includes a driving device, a force measuring and display device, a mobile clamping device, a fixed clamping device and an instrument base; the driving device is arranged at one end of the instrument base and is connected with the mobile clamping device through the force measuring and display device, and the fixed clamping device is fixedly connected at the other end of the instrument base; the mobile clamping device and the fixed clamping device are used for fixing a coiled material specimen; the driving device is used for pulling the mobile clamping device to move toward the direction away from the fixed clamping device; the force measuring and display device is used for measuring and displaying a stripping force value of the coiled material specimen. The portable coiled material tester provided by the invention can detect the problem whether overlapping edges are reliable and are insufficiently welded, greatly improves the detection efficiency after construction site welding, also has the advantages of simple structure, small size, light weight, and convenience for carrying, and can be used for doing overlapping edge seams stripping tests at any time.

The invention discloses a method for testing the grade of adhesive residue of a pressure-sensitive adhesive product. The test method comprises the following steps: (1) selecting a test board, namely utilizing one of a metal plate, a metal sheet, a plastic board and a plastic plate as the test board; (2) setting parameters of the test board, wherein the surface tension of the test board is 32-50mN/m, the size of the test board is greater than or equal to 150mm*35mm, and the thickness of the test board is greater than or equal to 50 microns; (3) manufacturing an assembly, namely adhering a to-be-tested pressure-sensitive adhesive test piece onto the test board so as to form the assembly; (4) processing the assembly, namely respectively placing the assembly in a thermo-hygrostat which has temperature higher than 30 DEG C and humidity higher than 60% or a thermostat at a temperature lower than 30 DEG C; and (5) performing a stripping test, namely stripping the test piece in the assembly treated in the step (4) from the test board. The test method disclosed by the invention can be used for determining the grade of adhesive residues of the pressure-sensitive adhesive, thus determining the viscous force of the pressure-sensitive adhesive product and the adhesion quality of the pressure-sensitive adhesive product and an adhered object.

The invention discloses a test device and method for a tire strip pull-out test, which solves the problem that in the prior art, a pull-out test device is complex in structure, and has the beneficialeffects of being convenient to observe, and capable of effectively obtaining data required by the pull-out test. The scheme is as follows: the test device for the tire strip pull-out test comprises atest box, and geotechnical packing is arranged inside the test box; a plurality of tire strip test pieces are arranged in the geotechnical packing of the test box, wherein the tire strip test pieces are connected with a drawing mechanism, so that the tire strip test pieces are pulled out from the geotechnical packing of the test box through the drawing mechanism; and a reaction frame, wherein a lifting component is arranged between the top of the geotechnical packing of the test box and the reaction frame, and a first tension-compression sensor connected with a controller is installed betweenthe lifting component and the reaction frame.

The invention relates to a bonding sheet for manufacturing a semiconductor device, a semiconductor device and a manufacturing method thereof. The bonding sheet for manufacturing the semiconductor device comprises a base material and a thermosetting binder layer arranged on one surface of the base material, and can be pasted on a lead frame (20) or a wiring substrate of a semiconductor device in a strippable manner, the bonding strength a of the binder layer before heating measured in a specific stripping test A is above 0.07N/20mm, the bonding strength b after heating measured in a specific stripping test B is above 0.58N/20mm, and the bonding strength c after heating measured in a specific stripping test C is above 1.17N/20mm.

The invention relates to a testing device for LED light strips with side luminance. The testing device comprises the light strips, a light strip carrier, a light strip power module, a light strip testing board, a digital camera and a computing control unit. The light strips are provided with a plurality of LED lights and fixed on the light strip carrier. A plurality of light strips are arranged. The light strip power module supplies power to the LED light strips. The light strip testing board is provided with a light-transmitting device and located above the light strip carrier through a locating device. The digital camera is fixed on the portion above the light strip testing board. The light of the LED lights on the light strips illuminates the digital camera through the light strip testing board. The digital camera is connected with the computing control unit. According to the method, ten to sixty light strips can be tested at the same time, and the speed is increased by 10 times-60 times compared with that of manual work; moreover, uncertainty influence of human factors is avoided, the testing specification takes the numerical value as the standard, the stability and precision are ensured, and the online testing requirement of the LED light strips can be met completely; the cost is saved, the efficiency is improved, and the quality is ensured.

The invention belongs to the technical field of carbon contact strips, in particular to a smart test device for air tightness of a pantograph carbon contact strip. For the existing air tightness detection, the carbon contact strip is likely to shape when placed on a test station, an air pipe connection place thus gets loose easily, the detection accuracy is affected, and the space in a device control cabinet is narrow, and the shortcoming of inconvenient maintenance is caused. The device in the scheme comprises a test bench; the top side of the test bench is fixedly provided with a side plate;one side of the side plate is fixedly provided with a control cabinet; the top side of the test bench is fixedly provided with a U-shaped frame; and the top side of the U-shaped frame is provided with multiple placing grooves. According to the carbon contact strip test device disclosed in the invention, the carbon contact strip is automatically stably clamped by two clamping plates after placed in the placing groove, the air tightness test accuracy is ensured, and the control cabinet adopts a combined mode which can be conveniently switched to an explosive mode, maintenance in narrow in-cabinet space is not needed, and the operation is more convenient.

The invention discloses an anti-stripping test device for surface aggregates of porous asphalt pavements or porous concrete pavements. The test device comprises a supporting machine frame, a test piece assembling area, a wheel simulation mechanism, a loading mechanism, a wheel steering control mechanism, a reciprocal motion control mechanism, a temperature control machine, an observation window and a visual control platform. The device can well simulate the surface aggregate anti-stripping conditions of the porous pavements under conditions of different pavement temperatures, loads and vehicle running states and can obtain the main factors influencing the anti-stripping capacity of the surface aggregates of the porous pavements by combining raw material test analysis, thereby providing a basis for the selection of raw materials and design of mixture composition in a pavement design process.