公开(公告)号：US09802749B2

公开(公告)日：2017-10-31

申请号：US14688778

申请日：2015-04-16

Applicant: ENTEGRIS, INC

Inventor： Minna Hovinen ,  John R. Kingery ,  Glenn M. Tom ,  Kevin T. O'Dougherty ,  Kirk Mikkelsen ,  Donald D. Ware ,  Peter C. Van Buskirk

IPC: B65D83/00 ,  B01J4/02 ,  G01F23/18

CPC classification number: B65D83/0061 ,  B01J4/02 ,  B01J2219/00065 ,  B01J2219/00067 ,  B01J2219/00069 ,  B01J2219/00164 ,  G01F23/18

Abstract: Fluid supply systems for storage and dispensing of chemical reagents and compositions, e.g., high purity liquid reagents and chemical mechanical polishing compositions used to manufacture microelectronic device products, having capability for detection of an empty or near-empty condition when the contained liquid is at or approaching depletion during dispensing operation. Fluid delivery systems employing empty detect arrangements are described, including pressure transducer monitoring of dispensed material intermediate the supply package and a servo-hydraulic dispense pump, or monitoring of dispenser chamber replenishment times in a dispenser being replenished on a cyclic schedule to flow material from the dispenser to a downstream tool utilizing the dispensed material.