Keywords
Citation
(2000), "New pressure indicating film is 50 per cent more accurate!", Microelectronics International, Vol. 17 No. 3. https://doi.org/10.1108/mi.2000.21817cad.006
Publisher
:Emerald Group Publishing Limited
Copyright © 2000, MCB UP Limited
New pressure indicating film is 50 per cent more accurate!
New pressure indicating film is 50 per cent more accurate!
Keywords SPI, Sensors, Film
Sensor Products Inc. introduces Super Pressurex, a tactile force indicating sensor film that is now 50 per cent more accurate. This sensor is useful in assessing compression magnitude and distribution between any two mating or impacting surfaces with much greater resolution than standard indicating films. Applications exist for both manufacturing process control and machine/component inspection and calibration.
Super Pressurex sensor film comes in the form of a large thin sheet, actually a film, similar in appearance to this page. When placed between interfacial surfaces, the sensor film instantaneously and permanently changes color to reveal minute measurements of dispersion and degrees of pressure. The intensity of this color is proportional to the amount of force applied, allowing the user to actually quantify the stress characteristics across the surface. With more exactness, precise PSI (kg/cm2) can be determined by comparison of the sensor film to a color calibration chart (conceptually similar to interpreting litmus-paper), or by using one of several imaging systems that Sensor Products supplies.
Super Pressurex technology is a valuable aid in R&D and QC/QA in electronic packaging. Determining precise pressure distribution within a laminating press for multilayer printed circuit boards and accurately revealing uneven pressure distribution across the nip of rollers on a dry film laminator are just some of the capabilities of Super Pressurex. The film also is useful in clearly detecting imperfections within the nips themselves. When manufacturing hybrid circuits, the ultra-sensitive sensor film more accurately reveals inconsistencies in resistor thickness across large area substrates. Uniformity problems are visibly revealed during thermocompression in the TAB process and designing heat sinks. Additional uses include exact pressure determination during the stack insertion process in transducer manufacturing, specific core pressure in wound electrolytic capacitors and the lamination process of ceramic capacitors.
Super Pressurex is suitable for invasive intolerant environments that cannot accommodate traditional load cells and other transducers. With a maximum gauge of 8 mils this enhanced sensor film is ideal for invasive, intolerant environments that cannot accommodate traditional load cells and other transducers.
For more information or to obtain a free product sample, please contact Bill Ebner by phone (973 560 9092) or e-mail (bebner@sensorprod.com).