Subject innovation is related to a connector, connection mode for the first time, subject innovation connect with positive terminal pad selectively collecting respectively, these rear connection pads and outside pass through a bypass arrangement of the second connection figure, the front and rear for being connected to the pad of individual free space extends around optimum condition, with this, in addition it is to be difficult to attach to access terminal that front and rear connects pad fluxless ball, by introducing elasticity to ensure that free space needs electrical isolation structure, during the progress of electrical communication method between true each circuit boards, additional short phenomenon does not occur, so as to block in advance. ;Furthermore, significantly electric connection structure ensures the good format for a series of free space between the pads with front and rear access in first and second connection figure for design, it is improved, by the short phenomenon for blocking preparatory soldered ball, pass through these, by minimizing the unnecessary harm of individual circuit boards, in an Electronic device manufacturers (user) side, overall manufacturing cost (price for repairing), in the production time (service time), etc. can cause at least reduce with effect naturally.
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