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handling, especially for thinned wafers (down to 50µm). To achieve the <2µm variation in wafer thickness, the device wafer is bonded to a carrier wafer prior to wafer thinning, via a temporary adhesive. Once backside processing is complete
PRE values on a blanket test wafer are a critical metric and serve as a guide to estimate the final defect count on a device wafer after processing. Using these PRE values, the average remaining defect count is expected to be less than two for particles
proven adhesive platforms; and the ability to debond at room temperature with virtually no vertical force applied to the device wafer . Strong adhesion occurs at the edge (perimeter) and minimal adhesion is applied to the wafer center, supporting
uniformity for a nickel silicide device wafer , calculated from measured reflectance ..... pattern density variations on the device wafer can cause large within-die ..... effects, we took an advanced logic device wafer pulled from the line at the second
and existing adhesive platforms. Debonding can take place at room temperature with virtually no vertical force on the device wafer . ZoneBOND defines 2 carrier wafer zones, with strong perimeter adhesion and minimal center adhesion. This allows
director of the LED/energy business unit at Brewer Science. That requires a solution for temporary bonding the device wafer to a carrier substrate so it survives handling and processing without damage. Debonding choices range from chemical