Abstract: A multi-functional cyclic siloxane compound (A), a siloxane-based (co)polymer prepared from the compound (A), or compound (A) and at least one of a Si monomer having organic bridges(B), an acyclic alkoxy silane monomer(C), and a linear siloxane monomer (D); and a process for preparing a dielectric film using the polymer. The siloxane compound of the present invention is highly reactive, so the polymer prepared from the compound is excellent in mechanical properties, thermal stability and crack resistance, and has a low dielectric constant resulting from compatibility with conventional pore-generating materials. Furthermore, a low content of carbon and high content of SiO2 enhance its applicability to the process of producing a semiconductor, wherein it finds great use as a dielectric film.

Abstract: A flux distribution measuring apparatus measures distribution of flow rates of a flowable medium. The measuring apparatus includes thin metal wire(s) for scanning a flowable medium and lead wires connected to the thin metal wire(s), wherein a voltage difference is detected between adjacent lead wires while the measuring apparatus scans the flowable medium in the direction perpendicular to a flow path of the flowable medium. The voltage differences are generated due to temperature changes in the thin metal wire(s) while scanning the flowable medium having different flow rates. The measuring apparatus visualizes the distribution of flow rates of a flowable medium using a computer which receives and processes the voltage differences detected.

Abstract: A flux distribution measuring apparatus measures distribution of flow rates of a flowable medium. The measuring apparatus includes thin metal wire(s) for scanning a flowable medium and lead wires connected to the thin metal wire(s), wherein a voltage difference is detected between adjacent lead wires while the measuring apparatus scans the flowable medium in the direction perpendicular to a flow path of the flowable medium. The voltage differences are generated due to temperature changes in the thin metal wire(s) while scanning the flowable medium having different flow rates. The measuring apparatus visualizes the distribution of flow rates of a flowable medium using a computer which receives and processes the voltage differences detected.