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US08679280B2 Laser ablation of adhesive for integrated circuit fabrication 有权
用于集成电路制造的粘合剂的激光烧蚀

Laser ablation of adhesive for integrated circuit fabrication
Abstract:
A method for releasing a handler from a wafer, the wafer comprising an integrated circuit (IC), includes attaching the handler to the wafer using an adhesive comprising a thermoset polymer, the handler comprising a material that is transparent in a wavelength range of about 193 nanometers (nm) to about 400 nm; ablating the adhesive through the handler using a laser, wherein a wavelength of the laser is selected based on the transparency of the handler material; and separating the handler from the wafer.
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