Ic Holder

• US 20080285239A1
• Filed: 11/24/2006
• Published: 11/20/2008
• Est. Priority Date: 11/25/2005
• Status: Abandoned Application

• Current Assignee: Dong-Goo Yun
• Original Assignee: Dong-Goo Yun
• Inventors: Yun, Dong-Goo
• Application Number:
  US12/094,705
• Publication Number:
  US 20080285239A1
• Time in Patent Office: Days
• US Class Current: 361/720
• CPC Class Codes: H01L 2023/405 heatsink to package
• CPC Class Codes: H01L 2023/4062 heatsink to or through board or cabinet
• CPC Class Codes: H01L 2023/4087 Mounting accessories, interposers, clamping or screwing parts
• CPC Class Codes: H01L 23/4006 with bolts or screws
• CPC Class Codes: H01L 23/433 Auxiliary members in containers characterised by their shape, e.g. pistons
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

Provided is an integrated circuit (IC) holder that includes: a case into which an IC package is inserted; a fastening unit for fastening the case to a printed circuit board (PCB); and a heat-dissipation unit for transferring heat generated from the IC package to the case, so that the IC holder is not in contact with the PCB or designed to avoid devices or circuits adjacent to the IC package even though it is contact with the PCB, thereby reducing an unnecessary area not used for layout of the PCB and providing a layout structure similar to that using only the IC package. Further, the IC holder can have a solderless structure to make the devices be readily replaced, solve an environment problem, and be easily applied to various kinds of the IC packages.

Claims

1. An integrated circuit (IC) holder comprising:

a case into which an IC package is inserted;

a fastening unit for fastening the case to a printed circuit board (PCB);

a heat-dissipation unit for transferring heat from the IC package to the case; and

a guide panel allowing the external connection terminal of the IC package to precisely contact an electric pattern of the PCB by guiding an outer surface of the IC package.

2. The IC holder as claimed in claim 1, wherein the guide panel is made of an insulator which is in direct contact with the PCB, and designed to avoid devices disposed on the PCB.

3. The IC holder as claimed in claim 1, wherein the case comprises:

a case body into which the IC package is inserted; and

a caser cover fastened to an upper surface of the case body and pressing the IC package.

4. The IC holder as claimed in claim 3, wherein the case cover is designed as a heat sink for radiating heat from the IC package to the outside.

5. The IC holder as claimed in claim 1, wherein the case is made of metal and prevents electromagnetic waves generated from the IC package from radiating to the outside or prevents the IC package from malfunction due to external electromagnetic waves.

6. The IC holder as claimed in claim 1, wherein when the IC package comprises a lead as an external connection terminal, the IC holder further comprises a resilient insulator placed on a bottom of the case so that the lead of the IC package closely contacts the PCB.

7. The IC holder as claimed in claim 1, further comprising a guide pin to be inserted into a bottom of the case to decrease movement due to tolerance of the fastening unit.

8. The IC holder as claimed in claim 1, further comprising a heat sink placed on an upper surface of the case and radiating heat from the IC package to the outside.

9. The IC holder as claimed in claim 1, wherein the heat-dissipation unit has elasticity to make pressure applied from the fastening unit to a case be uniformly distributed to the IC package.

10. The IC holder as claimed in claim 1, further comprising:

a supporter placed under the PCB and preventing the PCB from deformation and damage; and

an insulator interposed between the PCB and the supporter.

11. The IC holder as claimed in claim 1, further comprising an electric conductive sheet that is placed between an external connection terminal of the IC package and the PCB and becomes conductive at a part where pressure is applied.

12. The IC holder as claimed in claim 11, wherein an outer surface of the electric conductive sheet is fastened by the guide panel.

13. An IC holder comprising:

four case bodies for fastening a corner of an IC package;

a first fastening unit for fastening the case bodies to a PCB;

a case cover placed on the case bodies and pressing the IC package to make an external connection terminal of the IC package contact an electric pattern of the PCB;

a heat-dissipation unit for transferring heat from the IC package to the case cover; and

a second fastening unit for fastening the case cover to the case bodies.

14. The IC holder as claimed in claim 13, wherein the case cover is designed as a heat sink to radiate heat generated from the IC package to the outside.

15. The IC holder as claimed in claim 13, wherein the case bodies are made of metal and prevents electromagnetic waves generated from the IC package from radiating to the outside or prevents the IC package from malfunction due to external electromagnetic waves.

16. The IC holder as claimed in claim 13, wherein the case cover is made of metal and prevents electromagnetic waves generated from the IC package from radiating to the outside or prevents the IC package from malfunction due to external electromagnetic waves.

17. The IC holder as claimed in claim 13, further comprising four insulating pads interposed between the PCB and the four case bodies, respectively, and being in direct contact with the PCB.

18. The IC holder as claimed in claim 13, further comprising a guide pin to be inserted into a bottom of the case bodies to decrease movement due to tolerance of the fastening unit.

19. The IC holder as claimed in claim 13, further comprising a heat sink placed on an upper surface of the case cover and radiating heat generated from the IC package to the outside.

20. The IC holder as claimed in claim 13, wherein the heat-dissipation unit has elasticity to make pressure applied from the fastening unit to the case cover be uniformly distributed to the IC package.

21. The IC holder as claimed in claim 13, further comprising:

a supporter placed under the PCB and preventing the PCB from deformation and damage; and

an insulator interposed between the PCB and the supporter.

22. The IC holder as claimed in claim 13, further comprising an electric conductive sheet that is placed between an external connection terminal of the IC package and the PCB and becomes conductive at a part where pressure is applied.

23. The IC holder as claimed in claim 22, wherein an outer surface of the electric conductive sheet is guided by the case bodies.