KR930002755Y1 - Interception device for center block runner - Google Patents
Interception device for center block runner Download PDFInfo
- Publication number
- KR930002755Y1 KR930002755Y1 KR2019910003521U KR910003521U KR930002755Y1 KR 930002755 Y1 KR930002755 Y1 KR 930002755Y1 KR 2019910003521 U KR2019910003521 U KR 2019910003521U KR 910003521 U KR910003521 U KR 910003521U KR 930002755 Y1 KR930002755 Y1 KR 930002755Y1
- Authority
- KR
- South Korea
- Prior art keywords
- runner
- center block
- block
- center
- cavity
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 18
- 150000001875 compounds Chemical class 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2803—Closure devices therefor comprising a member with an opening or the injection nozzle movable into or out of alignment with the sprue channel or mould gate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/30—Flow control means disposed within the sprue channel, e.g. "torpedo" construction
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
내용 없음.No content.
Description
제1도는 일반적인 몰드다이중 하형다이의 개략적인 사시도.1 is a schematic perspective view of a lower die of a general mold die.
제2a도는 본 고안을 센터블록에 삽입한 상태의 일부평면도, 제2b도는 본 고안을 센터블록에 삽입한 상태의 일부단면도.Figure 2a is a partial plan view of the state of the present invention inserted into the center block, Figure 2b is a partial cross-sectional view of the state of the present invention inserted into the center block.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 센터블록 2A : 센터블록런너2: Center Block 2A: Center Block Runner
3 : 캐비티블록 3A : 캐비티 블록런너3: Cavity Block 3A: Cavity Block Runner
10 : 런너차폐기구 11 : 통로10: runner shield mechanism 11: passage
13 : 에젝트핀 수용부13: eject pin accommodation
본 고안은 몰드다이용 런너차폐기구에 관한 것으로서, 특히 별다른 분해 및 조립의 과정없이는 용이하게 런너를 차폐시킬 수 있도록 구성한 런너차폐기구에 관한 것이다.The present invention relates to a runner shielding mechanism for a mold die, and more particularly, to a runner shielding mechanism configured to easily shield a runner without a separate disassembly and assembly process.
반도체 제조공정의 일부인 성형공정은 완성된 리드프레임을 다수의 캐비티가 구성된 하형다이에 안착시켜 상형다이를 가압함과 동시에 플런저(Plunger)내에 수용된 몰딩 컴파운드를 런너 및 게이트를 통하여 캐비티내로 주입시킴으로서 원하는 형상의 패케이지를 성형시키는 공정이다.The molding process, which is a part of the semiconductor manufacturing process, seats the finished lead frame on the lower die formed with a plurality of cavities, pressurizes the upper die and simultaneously injects molding compound contained in the plunger into the cavity through the runner and the gate. It is a process of shape | molding the package.
즉, 제1도는 몰드다이중 하형다이의 개략적인 사시도로서, 하형다이(1)는 센터블록(2, center block)을 중심으로 다수의 캐비티 블록(3, cavity block)이 구성되며, 또한 각 캐비티 블록(3)중심부에는 캐비티 블록런너(3A)가 구성된다. 1개의 캐비티 블록(3)표면에는 캐비티 블록런너(3A)를 중심으로 2개열의 캐비티(4-1, 4-2, …… 4-n)가 형성되며, 캐비티 블록런너(3A)와 각 캐비티(4-1, 4-2, …… 4-n)간에는 게이트(5-1, 5-2, …… 5-n)가 구성된다.That is, FIG. 1 is a schematic perspective view of a lower die among mold dies, and the lower die 1 includes a plurality of cavity blocks 3 centered on a center block 2 and each cavity. In the center of the block 3, a cavity block runner 3A is formed. On the surface of one cavity block 3, two rows of cavities 4-1, 4-2, ..., 4-n are formed around the cavity block runner 3A, and the cavity block runner 3A and each cavity are formed. Gates 5-1, 5-2, ..., 5-n are formed between (4-1, 4-2, ..., 4-n).
센터블록(2)중심부에는 플런저(도시되지 않음)와 연통하는 몰딩컴파운드 주입부(1A)가, 주입부(1A)와 각 캐비티 블록(3)간에는 몰딩컴파운드의 통로인 센터블록 런너(2A, runner)가 각각 구성된다(상형다이도 제1도에 도시된 구조와 동일한 구조임).A molding compound injection section 1A communicating with a plunger (not shown) is provided at the center of the center block 2, and a center block runner 2A, a runner, which is a passage of the molding compound between the injection section 1A and each cavity block 3, is provided. Are respectively configured (the upper die is the same structure as that shown in FIG. 1).
따라서, 몰딩컴파운드는 플런저내에서 가압(약 1000psi)되어 센터블록런너(2A) 및 캐비티블록런너(3A)를 통하여 각 캐비티(4-1, 4-2, …… 4-n)내로 주입, 안착된 리드프레임을 중심으로 경화되어 패캐이지화 되는 것이다.Therefore, the molding compound is pressurized (approximately 1000 psi) in the plunger to be injected and settled into the cavities 4-1, 4-2,... 4-n through the center block runner 2A and the cavity block runner 3A. The hardened around the lead frame is packaged.
이와같은 구조를 갖는 몰드다이는 어느하나의 캐비티블록(또는 다수의 캐비티중 어느하나)에 결함이 발생할 경우에도 모든 캐비티 블록상에 리드프레임을 안착시켜 성형공정을 실시하게 된다.In the mold die having such a structure, even when a defect occurs in any one of the cavity blocks (or any one of the plurality of cavities), the mold frame is mounted on all the cavity blocks to perform the molding process.
리드프레임을 캐비티블록상에 안착시키지 않고 빈 캐비티에 몰딩컴파운드만을 주입시킬 경우 경화된 몰딩컴파운드만을 캐비티에서 제거하기가 어려울 뿐만아니라, 결함이 있는 1개의 캐비티블록으로 인하여 다수개의 캐비티블록으로 구성된 몰드다이를 교환하는 것은 비경제적이다.If only the molding compound is injected into the empty cavity without placing the leadframe on the cavity block, it is not only difficult to remove the hardened molding compound from the cavity, but also a mold die composed of multiple cavity blocks due to one defective cavity block. Exchanging is uneconomical.
따라서 본 고안은 파손된 캐비티블록내로 유입되는 몰딩컴파운드를 선택적으로 차단하여 손상된 캐비티블록에 리드프레임을 장착하지 않고서도 몰딩컴파운드를 주입할 수 있으며, 또한 1개의 캐비티블록에 결함이 발생되어도 다이를 교환할 필요가 없는 편너차폐기구를 제공하는데 그 목적이 있다.Therefore, the present invention can selectively block the molding compound flowing into the damaged cavity block to inject the molding compound without attaching the lead frame to the damaged cavity block, and replace the die even if a defect occurs in one cavity block. The purpose is to provide a side shield mechanism that does not need to be.
본 고안에 따른 런너차폐기구는 원통형 부재로서, 몰드다이의 센터블럭(2) 런너(2A) 구성부에 회전가능하도록 삽입되고, 표면의 지름선상에는 상기 센터블록(2)에 구성된 런너(2A)의 폭, 깊이 및 단면형상과 동일한 폭, 깊이 및 단면형상으로 이루어진 통로(11)를 구성하여 필요시 상기 센터블록(2) 내에서 90°회전시켜 상기 통로(11)좌우측의 격벽(12)으로 상기 센터블록런너(2A)를 차폐시킬 수 있도록 구성한 것을 그 특징으로 한다.The runner shielding mechanism according to the present invention is a cylindrical member and is rotatably inserted into the center block 2 runner 2A component of the mold die, and the runner 2A configured in the center block 2 on the diameter line of the surface. A passage 11 composed of the same width, depth, and cross-sectional shape as that of the cross-sectional shape, and rotates 90 ° in the center block 2, if necessary, to the partition 12 on the left and right sides of the passage 11. Characterized in that configured to shield the center block runner (2A).
이하, 본 고안을 첨부한 도면을 참고하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings of the present invention will be described in detail.
제1도는 일반적인 몰드다이중 하형다이의 사시도로서, 명세서 서두에서 설명하였기에 중복설명은 생략한다.FIG. 1 is a perspective view of a lower die of a general mold die, and description thereof is omitted at the beginning of the specification.
제2a도는 본 고안을 센터블록상에 삽입한 상태의 일부평면도, 제2b도는 본 고안을 센터블록상에 삽입한 상태의 종단면도로서, 원통형의 런너차폐기구(10)는 런너(2A)가 구성된 센터블록(2)에 삽입, 수용되는 삽입부 및 런너(2A)표면으로 노출되어 유동하는 몰딩컴파운드의 흐름을 제어하는 차폐부로 구성된다.Figure 2a is a partial plan view of the state inserted into the center block, Figure 2b is a longitudinal sectional view of the state inserted into the center block, the cylindrical runner shielding mechanism 10 is composed of a runner (2A) An insertion part inserted into and received in the center block 2 and a shielding part for controlling the flow of the molding compound that is exposed to the surface of the runner 2A and flows.
삽입부는 억지끼워 맞춤에 의하여 센터블럭(2)내에 삽입, 수용되며, 그 하부는 센터블록(2)하부로 일부 노출된다.The insertion part is inserted and received in the center block 2 by the interference fit, and its lower part is partially exposed to the lower part of the center block 2.
차폐부는 런너차폐기구(10)의 센터블록(2)내 삽입, 수용시 그 평면이 센터블록(2)표면과 일치하며, 표면중앙부에는 일정깊이의 통로(11)를 지름선상에 구성한다.When the shielding part is inserted into and received in the center block 2 of the runner shielding mechanism 10, its plane coincides with the surface of the center block 2, and the central portion of the surface forms a passage 11 having a predetermined depth in a radial line.
통로(11)의 폭 및 깊이는 센터블록(2)상에 형성된 센터블록런너(2A)의 폭 및 깊이와 동일하며, 그 단면은 런너(2A)의 단면형상과 동일한 반원형으로 구성된다.The width and depth of the passage 11 are the same as the width and depth of the center block runner 2A formed on the center block 2, and the cross section is formed in the same semicircular shape as the cross-sectional shape of the runner 2A.
런너차폐기구(10)중심부에는 전높이에 걸쳐 에젝트핀(Eject pin)을 수용할 수 있는 에젝트핀 수용부(13)를 구성하며, 그상단은 통로(11)중심부와 연통한다.The center portion of the runner shielding mechanism 10 constitutes an eject pin receiving portion 13 that can receive an eject pin over the entire height, and the upper portion communicates with the center portion of the passage 11.
이상과 같은 본 고안의 센터블록과의 결합상태 및 기능을 각도면을 통하여 설명하면, 제1도에 도시된 센터블록(2)상의 A, B, C, D, 및 F위치에 각각 런너차폐기구(10)를 삽입시킨후, 평상시에는 제2a도에 도시한 바와 같이 런너차폐기구(10)상부면의 지름선상에 구성된 통로(11)양단을 센터블록런너(2A)에 일치시켜 사용한다.Referring to the coupling state and the function of the center block of the present invention as described above through the angular plane, the runner shielding mechanisms at positions A, B, C, D, and F on the center block 2 shown in FIG. After inserting (10), normally, the both ends of the passage 11 formed on the diameter line of the upper surface of the runner shielding mechanism 10 are used in accordance with the center block runner 2A as shown in FIG. 2A.
따라서 몰딩컴파운드는 센터블록런너(2A), 런너차폐기구(10)의 통로(11), 센터블록런너(2A)를 경유하여 각 캐비티블록런너(3A)로 유입된다.Therefore, the molding compound flows into each cavity block runner 3A via the center block runner 2A, the passage 11 of the runner shielding mechanism 10, and the center block runner 2A.
그러나 어느한 캐비티블록(3)에 결함이 발생되어 해당 캐비티블록런너(3A)와 연통하는 센터블록런너(2A)를 폐쇄하고자 할때, 대응하는 위치의 센터블록(2)에 삽입되어 있는 런너차폐기구(10)의 하단부를 적당한 공구로 90°회전시킴으로서 런너차폐기구(10)의 회전에 따라 런너차폐기구(10)평면상의 통로(11)는 센터블록런너(2A)와 수직을 이루며, 따라서 통로(11)양측면부의 격벽(12)의 센터블록런너(2A)의 양단을 차단함으로서 센터블록런너(2A)와 캐비티블록런너(3A)간의 흐름(몰딩컴파운드)이 이루어지지 않는다. 이때 몰딩컴파운드가 유입되는 과정은 상형다이와 하형다이가 서로 밀착, 가압되는 상태이므로 하형다이와 대응하는 상형다이의 센터블록에도 본 고안의 삽입되어 있어 몰딩컴파운드의 유입 및 완전한 차단이 가능하다.However, when a defect occurs in one cavity block 3 and the center block runner 2A communicating with the corresponding cavity block runner 3A is to be closed, the runner shield inserted into the center block 2 at the corresponding position is closed. By rotating the lower end of the mechanism 10 by 90 ° with a suitable tool, the passage 11 on the plane of the runner shielding mechanism 10 is perpendicular to the center block runner 2A as the runner shielding mechanism 10 rotates. (11) By blocking both ends of the center block runner 2A of the partition wall 12 on both sides, no flow (molding compound) is formed between the center block runner 2A and the cavity block runner 3A. At this time, the molding compound is introduced into the upper die and the lower die is in close contact with each other, so that the lower die die and the upper die die corresponding to the center block of the present invention is inserted into the molding compound is possible to inflow and complete blocking of the molding compound.
한편, 본 고안내에 에젝트핀 수용부(13)를 구성하지 않을수도 있으나, 에젝트핀을 사용함으로서 센터블록런너의 스티킹(Sticking)을 방지할 수 있다.On the other hand, although the eject pin receiving portion 13 may not be configured in the present invention, by using the eject pin, it is possible to prevent sticking of the center block runner.
이상과 같은 본 고안은 각 캐비티블록의 손상시 해당 캐비티블록에 유입되는 몰딩컴파운드의 선택적인 차단이 가능함으로 불필요한 리드프레임의 사용을 방지할 수 있으며, 또한 1개의 캐비티블록의 손상으로 인하여 다이전체를 교체할 필요가 없다.The present invention as described above enables the selective blocking of the molding compound flowing into the corresponding cavity block when each cavity block is damaged, thereby preventing unnecessary use of the lead frame, and also the entire die due to the damage of one cavity block. No need to replace
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910003521U KR930002755Y1 (en) | 1991-03-18 | 1991-03-18 | Interception device for center block runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019910003521U KR930002755Y1 (en) | 1991-03-18 | 1991-03-18 | Interception device for center block runner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920017860U KR920017860U (en) | 1992-10-17 |
| KR930002755Y1 true KR930002755Y1 (en) | 1993-05-21 |
Family
ID=19311788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019910003521U KR930002755Y1 (en) | 1991-03-18 | 1991-03-18 | Interception device for center block runner |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930002755Y1 (en) |
-
1991
- 1991-03-18 KR KR2019910003521U patent/KR930002755Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR920017860U (en) | 1992-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4332537A (en) | Encapsulation mold with removable cavity plates | |
| KR940000740B1 (en) | Manufacturing apparatus for resin and semiconductor | |
| US20080113056A1 (en) | Injection Molding Machine With a Pair of Molding Inserts that Can Be Removed From a Holding Device | |
| US4368168A (en) | Method for encapsulating electrical components | |
| US6106259A (en) | Transfer molding apparatus with a cull-block having protrusion | |
| KR930002755Y1 (en) | Interception device for center block runner | |
| US5509794A (en) | Method and apparatus for making molded photointerrupters | |
| DE3856347T2 (en) | ROTATING INJECTION BLOW MOLDING DEVICE | |
| KR930002754Y1 (en) | Mould | |
| JPS62132621A (en) | Injection molding device | |
| KR970701429A (en) | An integrated circuit package encapsulated by a fiber-containing molding material and its manufacturing method (AN INTEGRATED CIRCUIT PACKAGE ENCAPSULATED BY FIBER LADEN MOLDING MATERIAL AND ITS METHOD OF MANUFACTURING) | |
| JP3008394B2 (en) | Manifold device for injection molding | |
| JPS6194731A (en) | Loading mechanism | |
| KR900005720Y1 (en) | Bolt insert device by magnet in injection mould | |
| JPH02216838A (en) | Manufacture of resin-sealed semiconductor device | |
| KR900007340B1 (en) | Injection mold | |
| JP2929201B2 (en) | Processing method of connector ferrule for optical fiber | |
| JP2918276B2 (en) | Method and apparatus for forming interdental brush holder | |
| JPH06177192A (en) | Resin molding apparatus | |
| KR910007784Y1 (en) | Movement provention device of insertnut for mould | |
| JPH01202418A (en) | Injection compression molding method for fiber-reinforced plastic product | |
| KR100237811B1 (en) | Chiller setting structure | |
| JPH068283A (en) | Hot runner mold | |
| JPH09169045A (en) | Injection mold | |
| JP2513113B2 (en) | Double resin sealing device for semiconductor device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20050422 Year of fee payment: 13 |
|
| EXPY | Expiration of term |