Abstract: Various embodiments of the present disclosure are directed towards an integrated chip including a memory cell overlying a substrate and comprising a top electrode. A sidewall spacer structure is disposed along sidewalls of the memory cell. The sidewall spacer structure comprises a first spacer layer on the memory cell, a second spacer layer around the first spacer layer, and a third spacer layer around the second spacer layer. The second spacer layer comprises a lateral segment adjacent to a vertical segment. The lateral segment abuts the top electrode and has a top surface aligned with or disposed below a top surface of the top electrode. A first conductive structure overlies the memory cell and contacts the lateral segment and the top electrode.

Abstract: The present disclosure, in some embodiments, relates to an integrated chip. The integrated chip includes a memory device surrounded by a dielectric structure disposed over a substrate. The memory device includes a data storage structure disposed between a bottom electrode and a top electrode. A bottom electrode via couples the bottom electrode to a lower interconnect. A top electrode via couples the top electrode to an upper interconnect. A bottommost surface of the top electrode via is directly over the top electrode and has a first width that is smaller than a second width of a bottommost surface of the bottom electrode via.

Abstract: A wheel hub seal has an inner annular member. An outer side of the inner annular member is sleeved with an outer annular member. A passage is formed between the inner annular member and the outer annular member. An opening of the passage is provided with a second barrier. The second barrier has a fixed portion fixed to the outer annular member. The fixed portion extends toward the inner annular member to form a suspended flexible portion. An outer surface of the flexible portion is provided with a raised press portion. Thereby, when the wheel hub seal is mounted in a shaft hole of a hub, the press portion is compressed by the inner wall of the shaft hole to press the flexible portion to resiliently lean against the inner annular member to seal the passage, achieving the effect of blocking external silt.