发明名称 ROLL-ON ENCAPSULATION METHOD FOR SEMICONDUCTOR PACKAGES
摘要 A low-viscosity resin is deposited using an apparatus with a movable and heatable wheel and a heater stage. A tape is provided, which includes a layer (140) of an adhesive polymeric resin and a film (141) of an inert plastic compound. The tape is wrapped around the wheel (150) so that the film touches the wheel and the layer faces away from the wheel. The wheel is heated to a temperature high enough to transits the polymeric resin into a low-viscosity state. A substrate strip (110), which has been assembled with a plurality of semiconductor chips (101) connected to the substrate by bonding wires (120), is placed on a station (130) also heated to the transition temperature. The wheel is then moved to roll the low viscosity resin on the chips and wires along the strip, while the inert film is separated. The chips and wires are thus encapsulated.
申请公布号 US2009093088(A1) 申请公布日期 2009.04.09
申请号 US20080243238 申请日期 2008.10.01
申请人 TEXAS INSTRUMENTS INCORPORATED 发明人 ANO KAZUAKI
分类号 H01L21/00 主分类号 H01L21/00
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