US4759675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip selection in automatic assembly of integrated circuit
Assignee: STMicroelectronics lnc USA
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Filing: 1986-10-27
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Granted: 1988-07-26
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Expires: 2006-10-27
Abstract
Abstract An apparatus for removing selected integrated circuit dice from a wafer array of dice sequentially moves a striker above a tape to the underside of which the array is mounted and then knocks a die down from the array of dice into a receptacle for transport to further processing stages.
Inventors
- 👤 Robert H. Bond
- 👤 Steven Swendrowski
- 👤 Michael A. Olla
- 👤 Barry L. Morrison
- 👤 Ricky Parkinson
- 👤 Linn Garrison
- 👤 John D. Pace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:58
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/70; H10P72/74; B; B25; B25J; B25J11/00; Y; Y10; Y10S; Y10S156/00; Y10S156/918; Y10S156/93; Y10T; Y10T156/00; Y10T156/11; Y10T156/19; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
An apparatus for removing selected integrated circuit dice from an array of noncontiguous dice adhesively attached to a support member having an upper striking side and a lower adhesive side to which bottom sides of said dice are attached, said dice further having a contact side opposite said bottom side, comprising: striking means, positioned above said support member, for striking downward on said support member to dislodge dice therebelow; translation means for moving one of said support member and said striking means in a horizontal plane so that a striking member in said striking means is positioned above a selected die in said array of dice wherein said striking member comprises at least one needle member for perforating said support member and striking a die adhesively attached therebelow and means for driving said needle member downward; and wherein said at least one needle member comprises four needle members positioned in a rectangular array, together with a fifth spring-loaded needle member positioned within said rectangular array and extending a predetermined distance below the others of said needle members.
Claim 2
Independent Claim
177 words
An apparatus for removing selected integrated circuit dice from an array of noncontiguous dice adhesively attached to a support member having an upper striking side and a lower adhesive side to which bottom sides of said dice are attached, said dice further having a contact side opposite said bottom side, comprising: striking means, positioned above said support member, for striking downward on said support member to dislodge dice therebelow; translation means for moving one of said support member and said striking means in a horizontal plane so that a striking member in said striking means is positioned above a selected die in said array of dice wherein said striking member comprises at least one needle member for perforating said support member and striking a die adhesively attached therebelow and means for driving said needle member downward; and wherein said at least one needle member comprises four needle members positioned in a rectangular array, together with a fifth spring-loaded needle member positioned within said rectangular array and extending a predetermined distance below the others of said needle members.
Claim 3
Dependent Claim
46 words
An apparatus according to claim 1, in which said at least one needle member is enclosed within a striking member housing having a rounded lower surface; and in which said striking means is positioned such that said rounded lower surface presses downwardly on said support member.
Claim 4
Independent Claim
204 words
An apparatus for removing selected integrated circuit dice from an array of noncontiguous dice adhesively attached to a support member, said support member having an upper striking side and a lower adhesive side to which bottom sides of said dice are attached, said dice further having a contact side opposite said bottom side, the apparatus comprising: striking means, positioned above said support member, for striking downward on and penetrating said support member to dislodge dice therebelow; and translation means for moving one of said support member and said striking means in a horizontal plane so that a striking member in said striking means is positioned above a selected die in said array of dice; wherein said striking member comprises at least one needle member for perforating said support member and striking a die adhesively attached therebelow and means for driving said needle member downward; and wherein said at least one needle member comprises four needle members positioned in a rectangular array, together with a fifth spring-loaded needle member positioned within said rectangular array and extending a predetermined distance below the others of said needle members; and plate means for receiving said dislodged dice from said striking means; and means for displacing said plate means.
Claim 5
Independent Claim
204 words
An apparatus for removing selected integrated circuit dice from an array of noncontiguous dice adhesively attached to a support member, said support member having an upper striking side and a lower adhesive side to which bottom sides of said dice are attached, said dice further having a contact side opposite said bottom side, the apparatus comprising: striking means, positioned above said support member, for striking downward on and penetrating said support member to dislodge dice therebelow; and translation means for moving one of said support member and said striking means in a horizontal plane so that a striking member in said striking means is positioned above a selected die in said array of dice; wherein said striking member comprises at least one needle member for perforating said support member and striking a die adhesively attached therebelow and means for driving said needle member downward; and wherein said at least one needle member comprises four needle members positioned in a rectangular array, together with a fifth spring-loaded needle member positioned within said rectangular array and extending a predetermined distance below the others of said needle members; and plate means for receiving said dislodged dice from said striking means; and means for displacing said plate means.
Claim 6
Dependent Claim
21 words
The apparatus of claim 3 wherein said means for displacing said plate means comprises means for rotably displacing said plate means.
Claim 7
Dependent Claim
46 words
An apparatus according to claim 3, in which said at least one needle member is enclosed within a striking member housing having a rounded lower surface; and in which said striking means is positioned such that said rounded lower surface presses downward on said support member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |