Hitachi Maxell, Limited

Jx Nippon Mining Metals Corporation

Kouji Murakami

Fusaji Kita

Akira Kawakami

Akira Noda

Makoto Mikami

Masaharu Higashiguchi

Toru Imori

Hiroshi Kobayashi

Takaaki Sonoda

Masaomi Murakami

Ginnosuke Tanaka

Provided are a high resistance CdTe-based compound single crystal with miniaturized Te precipitates and a method for producing the same. According to one embodiment of the present invention, a CdTe based compound single crystal is provided including a precipitate having a particle size of less than 0.1 &#x3bc;m obtained from an analysis by a light scattering tomography method. In the CdTe based compound single crystal, resistivity may be 1&#xd7;10&#x3a9;cm or more. In addition, in the CdTe based compound single crystal, a precipitate having a particle size of 0.1 &#x3bc;m or more obtained from the analysis by the light scattering tomography method is not detected. In the CdTe based compound single crystal, the precipitate may be a Te precipitate.

CdTe-based compound single crystal and method for producing the same

An UBM electrode structure body for a radiation detector and a radiation detector arranged with the UBM electrode structure body are provided for suppressing peeling and having high electrode adhesion. In addition, a manufacturing method of an UBM electrode structure body for a radiation detector and a manufacturing method of a radiation detector using the UBM electrode structure body are provided in which peeling does not occur during UBM structure formation, a solder bonding process or bonding of a signal line to a Pt layer. The UBM electrode structure body for a radiation detector of the present invention is arranged with a CdTe substrate or CdZnTe substrate and a Pt electrode layer arranged on the CdTe substrate or CdZnTe substrate, adhesion of the Pt electrode layer with respect to the CdTe substrate or the CdZnTe substrate being 0.5 N/cm or more.

UBM (under bump metal) electrode structure for radiation detector, radiation detector and production method thereof

The present invention provides a radiation detector UBM electrode structure body and a radiation detector which suppress the degradation of metal electrode layers at the time of formation of UBM layers and achieve sufficient electric characteristics, and a method of manufacturing the same. A radiation detector UBM electrode structure body according to the present invention includes a substrate made of CdTe or CdZnTe, comprising a Pt or Au electrode layer formed on the substrate by electroless plating, an Ni layer formed on the Pt or Au electrode layer by sputtering, and an Au layer formed on the Ni layer by sputtering.

Radiation detector UBM electrode structure body, radiation detector, and method of manufacturing same

Organic electrolytic solution secondary cell

An organic electrolytic solution cell having a positive electrode, a negative electrode which is made of an alkali metal or a compound containing an alkali metal, and an organic electrolytic solution which contains, as an electrolyte, an organic metal salt containing an atom selected from the elements of IIIb to Vb groups of the Periodic Table which forms an anion center and an electron attractive organic group bonded to the atom through an oxygen atom, or an organic metal salt having an atom which forms an anion center and a counter cation in a molar ratio of the counter cation to the anion center atom of larger than 1, which cell has excellent shelf stability.

Organic electrolytic solution cell

An organic electrolytic solution containing an organic solvent, and a metal salt having at least one electron attractive group and an anion which contains at least one element selected from the elements of the IIIb to VIb group of the Periodic Table and a charge-center atom of which is bonded to the electron attractive group by an intermediate backbone, in which a maximum distance between the center of the charge-center atom and the center of other atom in the anion is at least 4 .ANG.,. and a cell comprising this organic electrolytic solution, both having improved shelf stability.

Growing community of inventors

Ibaraki, Japan

Kouji Murakami