A method of bonding an electrical component to a substrate includes applying solder paste on to a substrate. Solder preform has an aperture is formed therethrough and is then urged into contact with the solder paste, such that solder paste is urged through the aperture. An electrical component is th
A method of bonding an electrical component to a substrate includes applying solder paste on to a substrate. Solder preform has an aperture is formed therethrough and is then urged into contact with the solder paste, such that solder paste is urged through the aperture. An electrical component is then urged into contact with the solder preform and into contact with the solder paste that has been urged through the aperture, thereby bonding the electrical component, the solder preform, and the substrate together to define a reflow subassembly.
대표청구항▼
1. A method of bonding a component to a substrate comprising: applying solder paste on to a substrate;urging a solder preform made of solder or braze material into contact with the solder paste, the solder preform having a channel in the form of at least one of an aperture and a notch formed thereth
1. A method of bonding a component to a substrate comprising: applying solder paste on to a substrate;urging a solder preform made of solder or braze material into contact with the solder paste, the solder preform having a channel in the form of at least one of an aperture and a notch formed therethrough, such that solder paste is urged through the channel in an amount sufficient to fill and at least partially spill over edges of the channel; andurging a component into contact with the solder preform and into contact with the solder paste that has been urged through the channel, thereby bonding the component, the solder preform, and the substrate together to define a reflow subassembly. 2. The method according to claim 1, wherein the component is a MEMS device. 3. The method according to claim 1, wherein the solder paste includes flux. 4. The method according to claim 1, wherein the substrate is metal. 5. The method according to claim 1, further including the step of moving the reflow subassembly to a source of heat. 6. The method according to claim 5, further including the step of applying heat from the source of heat to the reflow subassembly, thereby reflowing the solder preform to bond the component and the substrate together, and defining a solder joint. 7. The method according to claim 1, wherein the bond between the component, the solder preform, and the substrate is strong enough to allow the reflow subassembly to be moved to a subsequent process step without an assembly fixture. 8. The method according to claim 1, wherein the solder paste is applied on to the substrate using a screen printing process. 9. A method of bonding a MEMS device to a substrate comprising: applying solder paste on to a substrate;urging a solder preform made of solder or braze material into contact with the solder paste, the solder preform having an aperture formed therethrough, such that solder paste is urged through the aperture in an amount sufficient to fill and at least partially spill over edges of the aperture; andurging a MEMS device into contact with the solder preform and the solder paste that has been urged through the aperture, thereby bonding the MEMS device, the solder preform, and the substrate together to define a reflow subassembly. 10. The method according to claim 9, wherein the solder paste includes flux. 11. The method according to claim 10, wherein the limited amount of solder paste that is urged through the aperture provides flux between the solder preform and the MEMS device via the solder paste. 12. The method according to claim 9, wherein the substrate is formed from metal. 13. The method according to claim 9, further including the step of moving the reflow subassembly to a source of heat. 14. The method according to claim 13, further including the step of applying heat from the source of heat to the reflow subassembly, thereby reflowing the solder preform to bond the MEMS device and the substrate together, and defining a solder joint. 15. The method according to claim 9, wherein the bond between the MEMS device, the solder preform, and the substrate is strong enough to allow the reflow subassembly to be moved to a subsequent process step without an assembly fixture. 16. A method of bonding a component to a substrate comprising: a) applying a quantity of a fluxing agent on to a substrate;b) providing a solder preform made of solder or braze material having at least one channel in the form of at least one of an aperture and a notch formed therethrough,c) urging the solder preform into the fluxing agent, such that a portion of the fluxing agent is displaced through the channel formed in the solder preform in an amount sufficient to fill and at least partially spill over edges of the channel; andd) urging a component into contact with some of the fluxing agent that has been urged through the channel. 17. The method of claim 16 where the fluxing agent is a solder paste containing solder and flux. 18. The method of claim 16 wherein the component has a flat surface, and wherein the flat surface of the component is urged into contact with the portion of the fluxing agent displaced through the channel, such that the portion of the fluxing agent disposed in an interface of the solder preform and the component provides a quantity of flux quantity required to achieve a good solder joint and not a quantity of flux excessive to that required to achieve a good solder joint.
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