WO1998004395A1 - Resin molding apparatus - Google Patents
Resin molding apparatus Download PDFInfo
- Publication number
- WO1998004395A1 WO1998004395A1 PCT/JP1997/002592 JP9702592W WO9804395A1 WO 1998004395 A1 WO1998004395 A1 WO 1998004395A1 JP 9702592 W JP9702592 W JP 9702592W WO 9804395 A1 WO9804395 A1 WO 9804395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plunger
- resin molding
- molding material
- cylinder
- mold
- Prior art date
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 148
- 239000011347 resin Substances 0.000 title claims abstract description 148
- 238000000465 moulding Methods 0.000 title claims abstract description 45
- 239000012778 molding material Substances 0.000 claims abstract description 86
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 21
- 238000001721 transfer moulding Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 229920001187 thermosetting polymer Polymers 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000011800 void material 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
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
- B29C45/1808—Feeding measured doses
-
- 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
- B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
-
- 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
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
- B29C45/14655—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components connected to or mounted on a carrier, e.g. lead frame
Definitions
- the present invention relates to a resin molding apparatus for performing transfer molding.
- thermosetting resins such as epoxy resins, phenol resins, and unsaturated polyester resins.
- the Sindal plunger type molding apparatus for performing the transfer molding method is a heating device (not shown) for heating the upper mold 20D, the lower mold 10D, the upper mold and the lower mold. , Including mold cavity 2D formed between the upper mold and the lower mold.
- the lower mold 10D has a lower cylinder 11D and a first plunger 30D slidable along a wall of the lower cylinder.
- the upper monopole 20D is provided with a cull recess 21D at a position facing the lower cylinder 11D.
- the mold cavity 2D communicates with the inner space 13D of the lower cylinder 11D via the runner 12D and the cull recess 21D, thereby forming a resin flow path.
- Transfer molding is performed as follows by using this molding apparatus. First, in order to prevent the occurrence of voids in the resulting molded product, then, a powdery resin molding material such as a thermosetting resin is pre-pressurized in a tablet form to expel air between the particles.
- the tablet-shaped resin molding material 1D is charged into the lower cylinder 11D, and the resin molding material is heated by a heating device, and the first plunger 30D is raised to pressurize the resin molding material.
- the heated and pressurized resin molding material 1D melts and is supplied to the mold cavity 2D via the runner 12D.
- the present invention provides a resin molding apparatus for producing a molded article without void defects from a powdery resin molding material without preforming into a tablet shape, with the object of improving the above problems. It is to be. That is, the resin molding apparatus of the present invention comprises an upper mold, a lower mold having a first cylinder, a heater for heating the upper mold and the lower mold, and a first plan slidable along the inner wall of the first cylinder. Mold, a mold cavity having a contour of a molded product formed by cooperation of the upper mold and the lower mold, a space filled with a resin molding material, ie, a first cylinder inner wall, a first plunger, and a first plunger.
- a resin molding material ie, a first cylinder inner wall, a first plunger, and a first plunger.
- the closed state the filled resin molding material is pressurized by the movement of the first plunger while being indirectly heated by the heater.
- the open state the substantially molten resin molding material is supplied under pressure into the mold cavity by further movement of the first plunger.
- the upper mold preferably includes the following configuration. That is, the upper mold has a second cylinder having a diameter larger than the diameter of the first cylinder of the lower mold, and a second plunger which is slidable along a wall of the second cylinder.
- the upper mold is disposed on the lower mold such that the second cylinder communicates with the first cylinder.
- the second plunger functions as a gate member, and the runner can be closed by bringing the second plunger into contact with the lower mold.
- the upper mold also has a pressure load unit and a pressure release unit.
- the pressure load unit provides a load toward the lower mold to the second plunger when pressurizing the resin molding material between the first and second plungers while keeping the runner closed.
- the pressure release unit removes the load applied to the second plunger. The load on the second plunger is removed, and the open state of the runner is obtained when the second plunger is separated from the lower mold.
- the gate member is preferably formed of a telescopic pin in the runner.
- the gate member is preferably formed of a slide block slidably supported in a direction crossing the runner.
- the slide block has a through hole extending in the direction of the runner. Move the slide block across the runner to align the through hole with the runner At this time, the open state of the runner is obtained.
- FIG. 1 is a top view of the resin molding apparatus of the present invention
- Figure 2 is a front view of the resin molding apparatus of the present invention.
- Figure 3 is a side view of the resin molding apparatus of the present invention.
- Fig. 4 is a longitudinal sectional view of the molding unit A1 of the resin molding apparatus;
- Figs. 5A to 5D are diagrams showing a transfer molding step by the molding unit A1 of the present invention;
- Figures 6A and 6B show the mold release process of a molded product
- Figure 7 is a diagram showing a modification of the molding unit A1;
- FIGS. 9A to 9D are diagrams showing a transfer forming process by the molding unit A2 of the present invention.
- Figure 10 is a control diagram for the first and second plungers
- FIGS. 11A to 11D are diagrams showing the transfer molding process using the molding unit A3 of the present invention.
- Fig. 12 is a front view of the molding material metering unit B;
- Figs. 13A and 13B are diagrams showing the operation of the measuring section of the molding material metering unit B;
- Figure 14 is a diagram showing a prior art resin molding device. BEST MODE FOR CARRYING OUT THE INVENTION
- the resin molding apparatus of the present invention is a molding material metering unit that supplies a resin molding material to the molding unit Al and the molding unit A1 for performing transfer molding.
- B Frame insertion unit c to supply frame material to be sealed with resin molding material to molding unit A1, c, Frame removal unit D to remove molded product from molding unit A after transfer molding, D, Frame insertion unit
- the unit is composed of a frame supply unit E that provides the frame material to the product C, and a molded product storage unit F that stores the molded product.
- the molding unit A1 includes an upper mold 20, a lower mold 10 having a cylinder 11, a plunger 30 slidable along the inner wall of the cylinder 11, and an upper mold and a lower mold. And a mold cavity 2 having a contour shape of a molded product formed between and.
- the upper mold 20 has a cull recess 21 at a position facing the cylinder 11.
- both ends of the cull recess 21 communicate with the runner 12 provided on the lower mold.
- the mold cavity 2 communicates with the inner space 13 of the cylinder 11 via the runner 12 and the recessed portion 21 to form a resin flow path.
- FIG. 4 illustrates a pair of resin flow paths that communicate with mold cavities provided on both sides of the cylinder 11. Further, in the resin molding apparatus of the present embodiment, a plurality of cylinders 11 having the above-described configuration around the cylinder 11 are arranged in the molding unit A1.
- the upper mold 20 has a pair of gate pins 22 which can be extended and contracted in a cull recess 21.
- the resin flow path is closed.
- force The resin flow path is opened by retracting the gate bin 22 from the part 21.
- the upper mold 2D is supported on the upper base 25 via the upper mounting plate 23, and the lower mold 10 is supported on the lower base 17 via the lower mounting plate 15. At least one of the upper base 25 and the lower base 17 can be driven up and down by a hydraulic or electric drive device (not shown) In Fig. 4, numerals 26 and 16 heat the upper and lower molds.
- the holes 31 are provided in the upper mounting plate 23 and the lower mounting plate 15 for passing a heater (not shown) for the nozzles, and numeral 31 is a cylindrical opening for moving the plunger 30 up and down.
- No. 40 is an ejector pin used to release the molded product from the upper and lower molds, and No. 50 is a spring.
- the lead frame 8 to be sealed with the molding resin material is supplied by the supply pusher 61 as shown in FIG. It is sent from the supply magazine rack 60 to the preheating table 62.
- the lead frame 8 is also positioned on the preheating table 62.
- the frame feeding unit C puts the lead frame 8 on the preheating table 62 into each mold cavity 2 and is stored in the hopper 101 of the molding material metering and feeding unit B.
- the resin molding material in the form of powder, such as thermosetting resin is measured to a predetermined amount by the measuring section 103 and then supplied into each cylinder 11 of the lower mold. Then, as shown in Fig.
- the upper mold 20 and the lower mold 10 are clamped. At this time, each of the resin paths is closed by the gate pin 22.
- the upper mold 20 and the lower mold 10 are heated by a heater, and as a result, the resin filled in the cylinder
- the molding compound 1 is heated indirectly.
- the plunger 30 is raised and the resin molding material 1 is pressed. In the heating and pressurizing process, the air in the cylinder filled with the resin molding material and the air contained between the particles of the resin molding material are discharged through the gap between the plunger 30 and the cylinder 11.
- a vacuum device or the like may be used in combination to promote the discharge of air from the cylinder 11 ⁇ .
- the gate pin 22 is retracted to open the resin flow path as shown in Fig. 5C. .
- the plunger 30 and the cylinder 11 can discharge the air inside the cylinder to the outside through the gap between them, but the resin in the molten state permeates the gap between them in a short time. It is machined with such high precision that it cannot.
- the resin material 1 melted by the plunger 30 is pressed with the retreat of the gate pin 22, the molten lug flows into the monocavity 2 via the runner 12.
- the resin molding material 1 is cured in the mold cavity 2, and then released by the ejector pins 40. Make the molded product removable. After this, the molded product is chucked by the frame take-out unit D and placed on the take-out table 70. The molded product on the take-out table 70 is stored by the second pusher 71 in the storage magazine rack 80 of the molded product storage unit F.
- a slide block 27 as shown in FIG. That is, the slide block 27 is slidably supported so as to cross the runner 12 (resin flow path), and a through-hole 28 extending in the direction of the runner 12 is formed in a part of the slide block 27.
- the closed state of the resin flow path can be obtained by closing the runner 12 with the slide block 27.
- the open state of the resin flow path can be obtained by sliding the slide block 27 in a direction crossing the runner 12 and making the through hole 28 coincide with the runner 12.
- the molding unit A2 includes an upper mold 20A, a lower mold 10A having a first cylinder 11A, and a mold cavity 2A having a contour shape of a molded product formed between the upper mold and the lower mold.
- the upper mold 20A has a second cylinder 22A having a diameter larger than the diameter of the first cylinder 11A of the lower mold 10A, and the upper mold is arranged on the lower mold so that the second cylinder communicates with the first cylinder. Is done.
- the second plunger 35A having the same function as the gut pin 22 in the molding unit A1 is slidably supported on the inner wall of the second cylinder 22A.
- a pressurizing device (not shown) can apply a pressing force to each of the first plunger 30A and the second plunger 35A.
- a frame material such as a lead frame on which electronic components are mounted is set in the mold cavity 2A, and a thermosetting resin or the like is used.
- a predetermined amount of the powdered resin molding material 1A is supplied into the first cylinder 11A of the lower mold 10A, the upper mold 20A and the lower mold 10A are clamped as shown in Fig. 9A.
- the resin path is kept closed by bringing the second plunger 35A into contact with the upper surface of the first cylinder 11A.
- the upper mold and the lower mold are heated by the heater, and as a result, the resin molding material 1A filled in the first cylinder 11A is indirectly heated.
- the pressure applied to the second plunger 35A by the pressurizing device as shown in Fig. 9C is reduced.
- the resin material 1A in the molten state is pressurized by the first plunger 30A, and as a result, the second plunger is pushed up by the pressurized molten resin, and the resin flow path is opened.
- the first plunger 30A and the first cylinder 11A can discharge the air inside the cylinder to the outside through the gap between them, the resin in the molten state can be quickly discharged into the gap between them. It is processed with high precision so that it cannot penetrate.
- a pressure regulating member (not shown) applies a regulating pressure to the second plunger 35A. This is useful for supplying the molten resin molding material to the mold cavity 2A at a constant pressure. It is also possible to control the ascending position of the second plunger 35A, adjust the opening cross-sectional area of the upper runner 21A, and optimally set the amount of resin molding material flowing through the mold cavity 2A.
- the molten resin 1A pressurized by the first cylinder 30A flows into the mold cavity 2A via the upper runner 21A and the lower runner 12A.
- the first plunger is raised to a position where the tip of the first plunger 30A slightly projects into the second cylinder 22A.
- the first plunger 30A is fixed at that position, the pressing force is again applied to the second plunger 35A, and the molten resin 1A remaining inside the second cylinder 22A is sent out to the mold cavity 2A, and the mold carrier of the resin molding material is formed.
- the injection into Viti is completed.
- the resin can be injected at a substantially constant injection speed from the start of the injection to the completion of the injection. Wear. Immediately before the resin flow path is opened, the air is expelled from the resin molding material, so that a molded product without voids can be obtained by the resin molding material sent to the mold cavity. Removal of the molded product from the mold cavity after the injection of the resin molding material into the mold cavity is completed can be performed in substantially the same manner as in the case of the molding unit A1.
- the transfer molding process by the molding unit A2 will be described more specifically with reference to the graph of FIG.
- the second plunger 35A is lowered to close the resin flow path (S1 zone).
- a pressing force that prevents the second plunger from retracting upward during the heating and compression process of the resin molding material for example, about 500 kg / cm 3 , Is loaded (S2 zone).
- the first plunger 30A is raised, the resin molding material is heated and compressed between the first plunger and the second plunger 35A, and the air contained between the powders of the resin molding material is expelled to the outside and gradually.
- ⁇ ⁇ ⁇ Make the resin molding material closer to the molten state (P1 zone).
- the upper mold and the lower mold are heated to a predetermined temperature in advance.
- a thermosetting epoxy resin is used as the molding material, it is preferable to heat the upper mold 2OA and the lower mold 10A to about 165-185.
- the pressure applied to the first plunger 30A reaches a predetermined pressure value, the resin molding material is pressed and held for a certain period of time, for example, 0.5 to 2 seconds (P2 zone).
- the air remaining in the first cylinder is removed to the outside, so that the first plunger slowly rises as shown in the P2 zone in FIG.
- the cylinder pressure is preferably about 100 to 300 kg ⁇ / cm 2 .
- the resin molding material is in a substantially molten state in the P2 zone.
- the pressing force applied to the second plunger 35A is removed, and the pressing force is applied to the molten resin by raising the first plunger 30A at a constant speed. (P3 zone).
- the molten resin pressurized to the first plunger pushes up the second plunger 35A to open the resin flow path (S3 zone). Further, the molten resin in the first cylinder is supplied to the mold cavity via the resin flow path by further raising the first plunger. After raising the first plunger to a position where the tip of the first plunger 30A slightly protrudes into the second cylinder 22A (a position approximately 1 mm higher than the parting line), the first plunger is defined at that position. (P4 zone). The molten resin 1A remaining in the part of the second cylinder 22A is pushed out to the mold cavity 2A by lowering the second plunger again (S4 zone), and the resin molding material is injected into the mold cavity. It is completed.
- the first plunger and the second plunger are stopped when the mold cavity is completely filled with the molten resin.
- the operation of the first plunger may be terminated below the line.
- the time from the opening of the resin flow path to the completion of the injection of molten resin varies depending on the size of the molded product, but is about 3 to 15 seconds.
- the curing time of the injected resin molding material is about 30 to 90 seconds when a thermosetting epoxy resin is used. Since the curing reaction of the resin molding material starts from the molten state, it is preferable to use a fast-response electric press to drive the first and second plungers.
- the use of an electric pressurizing device is also preferable in that the molding operation can be performed in a cleaner environment than a hydraulic device.
- the molding die unit A2 has a second cylinder 22A having a larger diameter than the first cylinder 11A, but is smaller than the first cylinder 11B as shown in FIGS. 11A to 11D. It is also possible to use a molding unit A3 having a second cylinder 22B having a diameter. That is, as shown in FIG. 11A, the second cylinder 22B is lowered together with the second plunger 35B, and the end surface of the second cylinder is brought into contact with the upper surface of the lower mold 10B, thereby closing the upper runner 21B provided on the upper mold 20B. In this closed state of the resin flow path, the first plunger 30B is raised to pressurize the resin molding material while heating the resin molding material 1B as shown in Fig. 11B.
- the second plunger 35B is locked so as not to retreat by the pressing force of the first plunger 30B.
- the air in the first cylinder 11B filled with the resin molding material 1B and the air contained between the particles of the resin molding material pass through the gap between the first plunger 30B and the first cylinder 11B. I will serve you.
- the second cylinder 22B Is raised to open the resin flow path, and the second plunger 35B is unlocked and held in a state in which it can retreat.
- the first plunger 30B is raised to extrude the molten resin material 1B into the mold cavity 2B via the upper runner 21B and the lower runner 12B.
- the tip of the first plunger 30B reaches the predetermined position, the ascent of the first plunger is stopped and fixed to that position.
- the number 40B is the ejector pin used to remove the molded product from the mold cavity 2B.
- the molding material metering unit B is, as shown in FIG. Hopper "101" as a cartridge container for accommodating powdery resin molding material, holding section 102 for detachably holding hopper, shutter 103, weighs desired amount of resin molding material supplied from hopper It includes a measuring section 104 and a supply section 105 of the measured resin molding material.
- the measuring section 104 includes, as shown in FIGS. 13A and 13B, a case 110 having a circular cavity 111 and a circular cavity 110.
- a cylindrical rotor 120 having an outer peripheral surface 121 fitted on the inner peripheral surface and a measuring hole 122 opened on the outer peripheral surface, a measuring plunger 123 slidable along the inner wall of the measuring hole, and adjusting the position of the plunger in the measuring hole.
- Plastic The case 110 includes a first through hole 112 that allows a quick passage between the circular cavity 111 and the upper surface of the case, and a second through hole that communicates between the circular cavity and the lower surface of the case. Powdery resin molding material with hopper 113 and hopper 101 (1, 1,: 1) is supplied to the first penetration roller 112.
- the cylindrical rotor 120 is rotatable around the axis of the cylindrical rotor between a first position where the measuring hole 122 and the first through hole 112 match and a second position where the measuring hole and the second through hole 113 match.
- reference numeral 130 denotes a contact actuator for rotating and driving the columnar rotor 120.
- the positioning unit is positioned so that the desired volume of the resin molding material is substantially equal to the volume of the measuring space enclosed by the inner peripheral surface of the circular cavity 111, the inner wall of the measuring hole 122 and the measuring plunger 123. Adjust Resin molding material supplied to the measuring hole 122 via the first through hole 112 at the first position
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69729934T DE69729934D1 (de) | 1996-07-25 | 1997-07-25 | Vorrichtung zum harzformen |
KR1019980702147A KR100263598B1 (ko) | 1996-07-25 | 1997-07-25 | 수지성형장치 |
EP97933030A EP0870588B1 (en) | 1996-07-25 | 1997-07-25 | Resin molding apparatus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19672296 | 1996-07-25 | ||
JP8/196722 | 1996-07-25 | ||
JP8/270428 | 1996-10-14 | ||
JP8270428A JP3007850B2 (ja) | 1996-07-25 | 1996-10-14 | 樹脂成形方法及び樹脂成形装置 |
JP27263596A JP3007851B2 (ja) | 1996-10-15 | 1996-10-15 | 樹脂成形方法及び樹脂成形装置 |
JP8/272635 | 1996-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998004395A1 true WO1998004395A1 (en) | 1998-02-05 |
Family
ID=27327287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/002592 WO1998004395A1 (en) | 1996-07-25 | 1997-07-25 | Resin molding apparatus |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0870588B1 (ja) |
KR (1) | KR100263598B1 (ja) |
CN (1) | CN1092102C (ja) |
DE (1) | DE69729934D1 (ja) |
TW (1) | TW434131B (ja) |
WO (1) | WO1998004395A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113320070A (zh) * | 2021-06-11 | 2021-08-31 | 东莞市嘉仕新能电子仪器设备有限公司 | 一种贴片式瓷片电容干粉环氧树脂封装工艺及其专用设备 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6523254B1 (en) * | 2000-04-19 | 2003-02-25 | Micron Technology, Inc. | Method for gate blocking x-outs during a molding process |
CN100463129C (zh) * | 2006-02-09 | 2009-02-18 | 夏普株式会社 | 半导体装置的制造方法及半导体装置的制造装置 |
JP5542318B2 (ja) * | 2008-09-29 | 2014-07-09 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | 樹脂シートおよびそれを用いた回路装置の製造方法 |
KR102010895B1 (ko) * | 2017-06-20 | 2019-08-14 | 최영문 | 트랜스퍼성형장치 |
CN109262990B (zh) * | 2018-11-27 | 2020-10-27 | 江苏师范大学 | 一种汽车加热器外壳注塑模具 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813457U (ja) * | 1981-07-20 | 1983-01-27 | 三洋電機株式会社 | 回転圧縮機の容量制御装置 |
JPS60251635A (ja) * | 1984-05-28 | 1985-12-12 | Michio Osada | トランスフア−モ−ルド成形方法及びその成形用金型装置 |
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1997
- 1997-07-24 TW TW086110551A patent/TW434131B/zh not_active IP Right Cessation
- 1997-07-25 DE DE69729934T patent/DE69729934D1/de not_active Expired - Lifetime
- 1997-07-25 KR KR1019980702147A patent/KR100263598B1/ko not_active IP Right Cessation
- 1997-07-25 CN CN97190962A patent/CN1092102C/zh not_active Expired - Fee Related
- 1997-07-25 EP EP97933030A patent/EP0870588B1/en not_active Expired - Lifetime
- 1997-07-25 WO PCT/JP1997/002592 patent/WO1998004395A1/ja active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813457U (ja) * | 1981-07-20 | 1983-01-27 | 三洋電機株式会社 | 回転圧縮機の容量制御装置 |
JPS60251635A (ja) * | 1984-05-28 | 1985-12-12 | Michio Osada | トランスフア−モ−ルド成形方法及びその成形用金型装置 |
Non-Patent Citations (1)
Title |
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See also references of EP0870588A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113320070A (zh) * | 2021-06-11 | 2021-08-31 | 东莞市嘉仕新能电子仪器设备有限公司 | 一种贴片式瓷片电容干粉环氧树脂封装工艺及其专用设备 |
CN113320070B (zh) * | 2021-06-11 | 2024-01-16 | 东莞市嘉仕新能电子仪器设备有限公司 | 一种贴片式瓷片电容干粉环氧树脂封装工艺及其专用设备 |
Also Published As
Publication number | Publication date |
---|---|
CN1092102C (zh) | 2002-10-09 |
KR19990063683A (ko) | 1999-07-26 |
DE69729934D1 (de) | 2004-08-26 |
EP0870588B1 (en) | 2004-07-21 |
CN1198123A (zh) | 1998-11-04 |
EP0870588A1 (en) | 1998-10-14 |
KR100263598B1 (ko) | 2000-08-01 |
TW434131B (en) | 2001-05-16 |
EP0870588A4 (en) | 2001-01-10 |
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