THREE-DIMENSIONAL STRUCTURE, METHOD FOR MAKING THREE-DIMENSIONAL STRUCTURE, AND FLUID EJECTION DEVICE

A three-dimensional ("3D") structure (100) for handling fluids, a fluid handling device containing the 3D structure (100), and a method of making the 3D structure (100) are provided. The three-dimensional structure (100) includes a composite film layer (124, 200, 240). The composite film l...

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Bibliographische Detailangaben
Hauptverfasser: GRAHAM, David C, CRAFT, Christopher A, BERNARD, David L, WEAVER, Sean T
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A three-dimensional ("3D") structure (100) for handling fluids, a fluid handling device containing the 3D structure (100), and a method of making the 3D structure (100) are provided. The three-dimensional structure (100) includes a composite film layer (124, 200, 240). The composite film layer (124, 200, 240) includes a first photoresist layer (210) devoid of a hydrophobicity agent; and at least a second photoresist layer (214, 242) comprising the hydrophobicity agent, wherein the composite film layer (124, 200, 240) is devoid of an adhesion promotion layer between the first photoresist layer (210) and the second photoresist layer (214, 242).