Fixture is used to plug a tin furnace, and most of the fixture is used for testing, of course, the tool can also be called clamp, clamp a piece of PCB on the tray, along the pipeline through tin stove in the welding tin on the disk. However, in the room, test each a piece of baked in, to use the clip on the fixed tray test, to see if there any abnormal places. Then do the outer packing, collectively the fixture is referred to as the jig wave Fung reflow welding fixture, jig tray, tin furnace jig and so on.