FIXED ARRAY ACFs WITH MULTI-TIER PARTIALLY EMBEDDED PARTICLE MORPHOLOGY AND THEIR MANUFACTURING PROCESSES
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Nov 16, 2012
filing date -
Nov 16, 2012
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Abstract
An anisotropic conductive film (ACF) comprising: (a) an adhesive layer having a substantially uniform thickness; and (b) a plurality of conductive particles individually adhered to the adhesive layer, wherein the conductive particles include a first non-random array of particle sites partially embedded at a first depth within the adhesive layer and a second fixed non-random array or dispersion of conductive particles partially embedded at a second depth or a dispersion of conductive particles fully embedded within the adhesive layer, wherein the first depth and the second depth are distinctly different. The ACF may be supplied as a sheet, a continuous film or as a roll and the multi-tier morphology may be present throughout the length of the product or in select areas.
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