Patent ID: 11883233
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A  B  G  H | IPC A  B  G  H

Claim 8:
9. A method of manufacturing an intraluminal ultrasound imaging device, comprising:
providing a substrate comprising a hard mask on a first side of the substrate;
forming a first plurality of holes through the hard mask in a first area of the hard mask such that the first area comprises a screen formed by remaining portions of the hard mask;
etching the substrate through the screen such that a trench is formed under the screen that at least partially defines a spaced-apart segment of the substrate, wherein the spaced-apart segment comprises a first sidewall adjacent to the trench and below the screen; and
forming at least one transducer element over a second area of the hard mask adjacent to the first area, wherein the second area of the hard mask is disposed over the spaced-apart segment.