Engaging second articles to engaged first articles
First Claim
1. A method of removably engaging to a head, a first article having peripheral sides and then engaging a second article to the engaged first article, comprising:
- supporting a body by connection to an upper portion of the body such that a lower portion terminates in a downwardly presented working face;
receiving the first article at said working face, against surfaces for engaging such that at least a portion of the peripheral sides of said first article protrude from said working face;
removably engaging a first article utilizing a vacuum bore adapted for first connection between said working face and a vacuum source for engaging and holding the first article against said engaging surfaces; and
moving air streams toward said working face at the peripheral sides of an engaged first article, such streams being sufficient in force, direction and distribution around said peripheral sides that when the engaged first article is moved adjacent to a free second article, the air streams capture sufficient peripheral portions of said second article against the first article.
1 Assignment
0 Petitions
Accused Products
Abstract
A head (45) engages a chip (10) having peripheral sides (16), and then engages the chip (10), to a workpiece (35) for bonding chip (10) to a substrate (30). Body (46) has a lower portion terminating in a downwardly presented, working face (48). For receiving chip (10), face (48) has a cavity (54) formed by a plurality of inwardly and upwardly directed surfaces (56). Such surfaces (56) engage upper edges of, and position a chip (10) such that at least a portion of the peripheral sides (16) protrude from working face (48). Body (46) includes a vacuum bore (58) adapted for connection between face (48) and a vacuum for removably engaging and holding chip (10) against surfaces (56). Pockets (60) are also provided in face (48) and connected to a vacuum for moving air streams toward face (48) at the sides (16) of an engaged chip ( 10). Such streams are sufficient in force, direction and distribution around the sides (16) that when an engaged chip (10) is moved adjacent to a free workpiece (35), the air streams capture portions (38) and hold workpiece (35) against chip (10). The chip (10) and the workpiece (35) may be simultaneously registered to a site (32) on a heated substrate (30). Then workpiece (35) becomes liquefied and is uniformly applied and reacted to contact surfaces for the bonding. The pockets (60) may be directly supplied by the same vacuum for engaging chip (10) or to a different vacuum. Alternatively, the pockets (60) may open into cavity (54) such that a vacuum sufficient to engage chip (10) and then the workpiece (35).
20 Citations
6 Claims
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1. A method of removably engaging to a head, a first article having peripheral sides and then engaging a second article to the engaged first article, comprising:
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supporting a body by connection to an upper portion of the body such that a lower portion terminates in a downwardly presented working face; receiving the first article at said working face, against surfaces for engaging such that at least a portion of the peripheral sides of said first article protrude from said working face; removably engaging a first article utilizing a vacuum bore adapted for first connection between said working face and a vacuum source for engaging and holding the first article against said engaging surfaces; and moving air streams toward said working face at the peripheral sides of an engaged first article, such streams being sufficient in force, direction and distribution around said peripheral sides that when the engaged first article is moved adjacent to a free second article, the air streams capture sufficient peripheral portions of said second article against the first article. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification