×

SUBSTRATE PROCESSING APPARATUS AND STANDBY METHOD FOR EJECTION HEAD

  • US 20180350592A1
  • Filed: 08/06/2018
  • Published: 12/06/2018
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
Patent Images

1. A standby method for an ejection head, said standby method being a method of placing said ejection head of a substrate processing apparatus on standby, said ejection head being disposed inside a cup part and above a substrate holding part surrounded by said cup part and being configured to eject a processing liquid from an outlet provided in an ejection surface toward a substrate held by said substrate holding part,said standby method comprising:

  • a) moving said ejection head from a position inside said cup part to a position outside said cup part;

    b) causing relative movement of said ejection head and a reservoir in which an immersion liquid is retained, in a direction that said ejection head and said reservoir become closer to each other to immerse said ejection surface of said ejection head in said immersion liquid;

    c) separating said ejection surface from said immersion liquid either by discharging said immersion liquid from said reservoir or by causing relative movement of said ejection head and said reservoir in a direction that said ejection head and said reservoir become away from each other;

    d) removing said immersion liquid that remains on said ejection surface; and

    e) moving said ejection head to a position inside said cup part, whereinsaid ejection head includes;

    a head body part having an outer surface, part of which is said ejection surface, and for holding said processing liquid therein; and

    a piezoelectric element attached to said head body part and for vibrating said processing liquid held in said head body part to cause the ejection of said processing liquid from said outlet, andsaid piezoelectric element is driven to vibrate said immersion liquid retained in said reservoir in a state where said ejection surface is immersed in said immersion liquid in said operation b).

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×