Method and device for transferring a solder deposit configuration
View Patent ↗Method and device for transferring a solder deposit configuration having multiple solder deposits onto a terminal surface configuration of a contact surface of a substrate ( 36 ) using a removal of multiple solder deposits from a solder deposit reservoir ( 25 ) accommodated in a solder deposit receptacle unit ( 11 ) via an isolation unit ( 12 ), which is implemented like a template and is situated above the solder deposit reservoir, to implement the solder deposit configuration implemented corresponding to the terminal surface configuration, and using a subsequent transfer of the solder deposit configuration onto the terminal surface configuration of the substrate, the solder deposit reservoir being impinged by partial vacuum through template openings ( 15 ) of the isolation unit to transfer the solder deposits from the solder deposit reservoir into the isolation unit, the solder deposit reservoir ( 25 ) being ventilated via a floor wall ( 20 ) situated diametrically opposite the isolation unit during the partial vacuum impingement ( 27 ) by the isolation unit ( 12 ).
1. A method for transferring multiple solder deposits to a terminal surface configuration of a contact surface of a substrate, the method comprising:
placing an isolation unit on a solder deposit receptacle unit, wherein the isolation unit includes a template with template openings that correspond to a solder deposit configuration and wherein the solder deposit receptacle unit includes a solder deposit reservoir with an air-permeable floor wall and an air suction unit whose positioning relative to the air-permeable floor wall is changeable;
transferring multiple solder deposits from the solder deposit reservoir to the template openings of the isolation unit by a partial vacuum impingement of the solder deposit reservoir through the template openings and moving the air suction unit to regionally suck air through the air-permeable floor wall; and
transferring the solder deposit configuration on the isolation unit to the substrate to establish the terminal surface configuration thereon.
2. The method according to claim 1 , wherein sucking air through the air-permeable floor wall is performed in partial areas of the air-permeable floor wall in such a way that different areas of the air-permeable floor wall are ventilated in chronological sequence, beginning with a first partial area.
3. The method according to claim 1 , further comprising the step of ventilating the solder deposit reservoir using elevated pressure during a phase in which there is no partial vacuum impingement.
4. The method according to claim 3 , wherein the ventilation using elevated pressure is performed with a time offset to the partial vacuum impingement of the isolation unit.
5. The method according to claim 1 , wherein the isolation unit is additionally impinged by oscillations during the partial vacuum impingement.
6. The method according to claim 5 , wherein the oscillation impingement of the isolation unit is performed coaxially to the direction of the partial vacuum impingement.
7. The method according to claim 1 , wherein the isolation unit further includes a vacuum connection unit for connect to a vacuum unit for creation of a partial vacuum in the isolation unit.