Abstract: A flux for soldering used when soldering is performed to a board subjected to electroless nickel plating, the flux containing resin having film forming ability, activator, and solvent, and further containing metallic salt in an amount of 0.1 to 20% by weight of the total amount of flux. The use of this flux suppresses diffusion of nickel solder in soldering portions, and prevents concentration of phosphorous, thereby improving the bonding strength of soldering.

Abstract: A flux for soldering used when soldering is performed to a board subjected to electroless nickel plating, the flux containing resin having film forming ability, activator, and solvent, and further containing metallic salt in an amount of 0.1 to 20% by weight of the total amount of flux. The use of this flux suppresses diffusion of nickel solder in soldering portions, and prevents concentration of phosphorous, thereby improving the bonding strength of soldering.

Abstract: A flux for soldering used when soldering is performed to a board subjected to electroless nickel plating, the flux containing resin having film forming ability, activator, and solvent, and further containing metallic salt in an amount of 0.1 to 20% by weight of the total amount of flux. The use of this flux suppresses diffusion of nickel solder in soldering portions, and prevents concentration of phosphorous, thereby improving the bonding strength of soldering.

Abstract: A video telecommunication system having a plurality of cameras (video cameras) installed at remote locations and a monitor for monitoring the video, provided with a video information describing unit for sending a switch command for the camera to a video transmission apparatus, simultaneously sending character information describing the video information of the camera in accordance with the switch command, and having the video information and the character information displayed on the monitor, whereby it is possible to easily record, change, and correct character information on the place name etc. combined with the video information.

Abstract: A system for inputting coordinates using a digitizer includes a display device provided with a display which has a first area, a digitizer provided with a pointing region which has a second area smaller than the first area, where the pointing region includes a number of dots which is greater than or equal to a number of dots included in the first area, a pointing device for pointing an arbitrary dot position on the pointing region of the digitizer, and a controller for controlling display information on the display of the display device so that a pointing area displayed on the display corresponds to the pointing region of the digitizer and a dot pointed by the pointing device on the pointing region of the digitizer is displayed within the pointing area. The controller moves the pointing area on the display in an arbitrary direction depending on a specific part of the pointing region which is pointed by the pointing device.