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    • 1. 发明公开
    • 반도체 웨이퍼 홀딩 장치 및 그 방법
    • 用于保持半导体波形的装置和方法
    • KR1020010055439A
    • 2001-07-04
    • KR1019990056648
    • 1999-12-10
    • 삼성전자주식회사
    • 최명진
    • H01L21/68
    • PURPOSE: An apparatus and a method for holding a semiconductor wafer are provided to minimize a vacuum loss of a susceptor and a back side deposition of the wafer. CONSTITUTION: The apparatus(10) includes the susceptor(12) on which the wafer(60) is loaded by vacuum force produced by a vacuum generator(20) connected to the susceptor(12) through a vacuum line(22). The apparatus(10) further includes a purge gas supplier(30) connected to the susceptor(12) through a supply line(32) to supply a purge gas. The susceptor(12) has a vacuum groove(14) for applying vacuum force to the wafer(60) and a vent groove(16) for flowing the purge gas to the backside of the wafer(60). The vacuum line(22) and the supply line(32) have respectively the first and second cut-off valves(24,34) sequentially driven by a controller(50). In addition, a pressure switch(40) is placed on the vacuum line(22) between the first cut-off valve(24) and the susceptor(12). The pressure switch(40) reads a pressure of the vacuum line(22) and then sends a feedback signal to the controller(50) when the pressure reaches a specific value. The feedback signal is used for opening the second cut-off valve(34) to drive the purge gas supplier(30).
    • 目的:提供用于保持半导体晶片的装置和方法,以最小化基座的真空损失和晶片的背面沉积。 构成:装置(10)包括基座(12),通过真空发生器(20)通过真空管线(22)连接到基座(12)产生的真空力将晶片(60)装载在基座上。 设备(10)还包括通过供应管线(32)连接到基座(12)以提供净化气体的净化气体供应器(30)。 基座(12)具有用于向晶片(60)施加真空力的真空槽(14)和用于使净化气体流到晶片(60)的后侧的通气槽(16)。 真空管线(22)和供应管线(32)分别具有由控制器(50)依次驱动的第一和第二截止阀(24,34)。 此外,压力开关(40)被放置在第一截止阀(24)和基座(12)之间的真空管线(22)上。 当压力达到特定值时,压力开关(40)读取真空管线(22)的压力,然后将反馈信号发送到控制器(50)。 反馈信号用于打开第二截止阀(34)以驱动净化气体供给器(30)。