Shields

About: Shields is a research topic. Over the lifetime, 1456 publications have been published within this topic receiving 10896 citations.

Shielding structure for circuit board, and shielded circuit-board assembly

Abstract: PROBLEM TO BE SOLVED: To achieve the high separability of signals from each other with the more reduced assembling time and manufacturing cost of a shielded circuit-board assembly, by making the first and second previously deformed surfaces of respective conductive shields consistent surfaces with the first and second surfaces of a circuit board. SOLUTION: Each of conductive shields 11a, 11b has such a profiled coupling surface as to become flat or the consistent surface with the surface of a circuit board 16 in the interface between it and the circuit board 16, when the conductive shields 11a, 11b are secured on both the surfaces of the circuit board 16. The special profiles of these coupling surfaces compensate the deformations of the respective shields 11a, 11b even when respective securing places 14 of the coupling surfaces are provided at intermittent pitches. When a plurality of compressive and conductive gaskets 15a, 15b are interposed between the conductive shields 11a, 11b and the circuit board 16, respective abutting portions 19 are provided to receive the thicknesses of the gaskets 15a, 15b. As a result, a high separability of signals from each other is achieved to achieve the more reduced assembling time and manufacturing cost of a shielded circuit- board assembly.

Film formation device of plasma display panel, manufacturing method of plasma display panel, and manufacturing method of plasma display device

Abstract: PROBLEM TO BE SOLVED: To adjust opening width of a carrier without opening the inside of a film formation chamber to the atmosphere in forming films on substrates having different sizes; and to prevent considerable temporal loss in starting up operation of the film formation chamber. SOLUTION: This disclosed film formation device 10 of a PDP is provided with: a tray 6 having an opening 6A for securing a film formation region of a protective film by a board carrying means 14; a pair of upper-stage deposition shields 15A and 15B capable of adjusting the opening width 6W of the opening 6A; a pair of lower-stage deposition shields 16A and 16B; driving sources 28A, 28B, 29A and 29B for controlling moving operation of the respective deposition shields 15A, 15B, 16A and 16B from the outside of the film formation chamber 2; and gauges (measurement means) 51A, 51B, 52A and 52B for indicating the moving distances of the respective deposition shields 15A, 15B, 16A and 16B. COPYRIGHT: (C)2005,JPO&NCIPI