公开(公告)号：US20230015600A1

公开(公告)日：2023-01-19

申请号：US17782840

申请日：2020-03-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Kathryn H. CYR ,  Debora J. THOMAS

IPC: B01L3/00

Abstract: In one example in accordance with the present disclosure, a fluid ejection die is described. The fluid ejection die includes a fluid feed slot to deliver fluid from a reservoir to an array of ejection chambers fluid connected to the fluid feed slot. Each ejection chamber includes at least one fluid actuator and an opening through which fluid is to be ejected. The fluid ejection die also includes a number of antechambers. An antechamber includes sidewalls that curve inward.

公开(公告)号：US20210165007A1

公开(公告)日：2021-06-03

申请号：US17044996

申请日：2018-06-04

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jeffrey A. NIELSEN ,  Christie DUDENHOEFER ,  Debora J. THOMAS ,  Roberto A. PUGLIESE ,  Diane R. HAMMERSTAD

IPC: G01N35/10 ,  B01L3/02 ,  B01L3/00

Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a plurality of ejection subassemblies. Each ejection subassembly includes an ejection chamber to hold a volume of fluid and an opening through which the volume of fluid is ejected via a fluid actuator. A pitch of the ejection subassemblies aligns with a spatial arrangement of nanowells in an array of nanowells on a substrate.