Abstract: An imaging method for microcalcification displays microcalcification distribution by acquiring and overlapping a photoacoustic image of microcalcification and an ultrasonic image of tissue. The image acquired by the present invention, in comparison to images acquired by ultrasonic and X-ray mammography, has advantages in no speckle noises, higher optical contrast, higher ultrasonic resolution, and so on. The present invention also has advantage in safety by adopting a light source having no ionizing radiation. An imaging method for diagnosing breast cancer is also herein disclosed.

Abstract: A phase change memory device is disclosed. A first dielectric layer having a sidewall is provided. A bottom electrode is adjacent to the sidewall of the first dielectric layer, wherein the bottom electrode comprises a seed layer and a conductive layer. A second dielectric layer is adjacent to a side of the bottom electrode opposite the sidewall of the first dielectric layer. A top electrode couples the bottom electrode through a phase change layer.

Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a second reflective layer, and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer is disposed above the spacer layer, and the second recording layer is made of an inorganic material. The second reflective layer is disposed above the second recording layer. The second substrate is disposed above the second reflective layer.

Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a second reflective layer and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer is disposed above the spacer layer. The second reflective layer is disposed above the second recording layer. The second substrate is disposed above the second reflective layer and the second substrate has a groove, wherein the depth of the groove is smaller than 100 nm.

Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a second reflective layer and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer is disposed above the spacer layer. The second recording layer, which is made of cyanine dye, is disposed above the second recording layer. The second substrate is disposed above the second reflective layer.

Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a barrier layer, a second reflective layer, and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer, which is made of inorganic material, is disposed above the spacer layer. The barrier layer is disposed above the second recording layer. The second reflective layer, which is made of inorganic material, is disposed above the barrier layer. The second substrate is disposed above the second reflective layer.

Abstract: An optical information storage medium includes a first substrate, a first recording layer, a first reflective layer, a spacer layer, a second recording layer, a second reflective layer, and a second substrate. In this case, the first recording layer is disposed above the first substrate. The first reflective layer is disposed above the first recording layer. The spacer layer is disposed above the first reflective layer. The second recording layer is disposed above the spacer layer, and the second recording layer is made of an inorganic material. The second reflective layer is disposed above the second recording layer. The second substrate is disposed above the second reflective layer.

Abstract: A phase transition type recording medium. On a substrate, a lower dielectric layer is formed. An adding dielectric layer having a high reflectivity is formed on the lower dielectric layer. A recording layer is formed on the adding high reflective dielectric layer. An upper dielectric layer is formed on the recording layer. A reflective layer is formed on the upper dielectric layer, and a protecting layer is further formed on the reflective layer.

Abstract: A structure of an optical recording medium that mainly includes a first dielectric layer, a dye layer, a second dielectric layer, and a reflective layer formed on a substrate in sequence, and a method for fabricating an optical recording medium of the foregoing structure. The additional dielectric layers of the optical recording medium, instead of a quencher used in a conventional optical recording medium, increase the lifetime of a dye layer and reduce the fabrication cost. Furthermore, the additional dielectric layers are capable of isolating the dye layer from oxygen and moisture to enhance the lightfastness of the dye layer.

Abstract: An apparatus for coating a magneto-optical recording medium film onto a disk substrate are provided. For proceeding the sputtering processes, a sputtering target containing Tb, Fe, and Co composition is prepared and placed in a sputtering gun which is served as a sputtering source. Facing to the sputtering gun, a clamping mechanism having a plurality of clampers arranged around the clamping mechanism is provided for clamping disk substrate thereon. During sputtering processes, the clamping mechanism is rotated about its axial center, and at the same time each clamper of the clamping mechanism is rotated about its axial center respectively. The clamper is designed in a form of facing the plane of the sputtering gun at a proper tilt angle, preferably 15 degrees, so that the disk substrate may be sputtered with a uniform thickness and composition of magneto-optical recording medium film thereon.

Abstract: A polarized-light scatterometer for measuring the thickness of a film coated on the partial of a substrate, the film having a straight line edge on the surface of the substrate coated with the film.