Apparatus for assembling integrated circuit packages

• US 6,705,001 B2
• Filed: 11/28/2001
• Issued: 03/16/2004
• Est. Priority Date: 11/28/2001
• Status: Expired due to Term

• Current Assignee: ASM Technology Singapore Pte Limited (ASMPT Ltd.)
• Original Assignee: ASM Technology Singapore Pte Limited (ASMPT Ltd.)
• Inventors: Tan, Lian Hok, How, Wee Kiun, Zhang, Jian
• Primary Examiner(s): Arbes, Carl J.
• Assistant Examiner(s): TRINH, MINH N
• Application Number:
  US09/996,210
• Publication Number:
  US 20030097748A1
• Time in Patent Office: 839 Days
• Field of Search: 297/39, 297/40, 297/84, 297/42, 297/29, 297/83, 298/25, 298/27, 298/32, 298/40, 297/94, 297/97, 198/586, 198/817, 198/619, 198/346.2, 414/404, 414/416.12, 414/719
• US Class Current: 29/783
• CPC Class Codes: H01L 21/67236 the substrates being processed being not semiconductor wafers, e.g. leadframes or chips
• CPC Class Codes: Y10T 29/49128 Assembling formed circuit to base
• CPC Class Codes: Y10T 29/49144 by metal fusion
• CPC Class Codes: Y10T 29/5313 Means to assemble electrical device
• CPC Class Codes: Y10T 29/53174 Means to fasten electrical component to wiring board, base, or substrate
• CPC Class Codes: Y10T 29/53187 Multiple station assembly apparatus
• CPC Class Codes: Y10T 29/53365 Multiple station assembly apparatus
• CPC Class Codes: Y10T 29/53409 including converging conveyors
• CPC Class Codes: Y10T 29/53413 and primary central conveyor

Abstract

Apparatus for the manufacture of a component such as an integrated circuit chip, including: a plurality of processing stations forming a production line for the manufacture of the component, a conveyor adapted to transport component forming materials from one processing station to another in the production line, and a storage on the production line for storing the materials during transport along the production line. The storage acts as buffers effectively to collect materials and store them for efficient transport along the production line.

Claims

1. An apparatus for the manufacture of an integrated circuit component, including:

a plurality of processing stations forming a production line for the manufacture of said component;

conveying means including a first conveying path adapted to transport materials from one processing station to another in the production line and a second conveying path, said materials being transferable from the first conveying path to the second conveying path; and

storage means of the production line for storing said materials during transport along the production line;

wherein the storage means includes least one distal magazine positioned adjacent the second conveying path to receive said materials conveyed towards the distal magazine.

2. The apparatus according to claim 1, including storage means positioned adjacent the conveying means that is operable selectively to extract said materials being processed from the conveying means for storage, and thereafter to release said materials from storage for further processing by a processing station of the production line.

3. The apparatus according to claim 2, wherein the rate of at least one of extraction and/or release of materials from the storage means is automatically adjustable by a microprocessor according to the rate of processing of materials at various processing stations.

4. The apparatus according to claim 2, wherein the storage means is situated along the direction of travel of the materials and extracts material from the conveying means by displacement of the storage means relative to the conveying means.

5. The apparatus according to claim 1, wherein the second conveying path is adapted selectively to convey said materials in a forwards or rearwards direction and the distal magazine forward of the second conveying path and/or to the rear of it.

6. The apparatus according to claim 5, wherein two or more distal magazines are operatively connected to a shifting device, which is capable of shifting either of the distal magazines into alignment with the second conveying path for receiving materials.

7. The apparatus according to claim 1, wherein the conveying means includes a biasing device to urge materials into the distal magazine from the second conveying path or to urge materials onto the second conveying path.

8. The apparatus according to claim 1, comprising lifting means to transfer the materials between the first conveying path and the second conveying path.

9. The apparatus according to claim 8, wherein the transfer means is a transfer arm that can lift and relay an item of material between the first and second conveying paths.

10. The apparatus according to claim 1, wherein the conveying means comprises of a plurality of rollers on which materials are carried, controlled by a pulley system urging materials along the route of transportation.

11. The apparatus according to claim 1, wherein the conveying means comprises a pair of belts on which said materials are carried.

12. The apparatus according to claim 1, which includes a cell controller including a microprocessor to monitor and control movement of said materials along the conveying means and processing stations.

13. The apparatus according to claim 1, wherein the processing stations include any one or more or the following devices:

die-bonder, cure oven, wire-bonder, mold link, molding machine, trim and form machine, strip tester and tape/reel machine.

14. The apparatus according to claim 1, wherein each processing station is housed within a compartment having a space segregated from air outside the compartment and which maintains air within the compartment cleaner than air outside the compartment.

15. The apparatus according to claim 1, wherein the storage means is located between a die-bonder and a wire-bonder.

16. The apparatus according to claim 1, wherein the storage means is located between a wire-bonder and a moulding machine.

17. The apparatus according to claim 1, wherein the second conveying path comprises a rear track of a wire-bonder that is operative to move the material towards a wire-bonding device.