Abstract:
PROBLEM TO BE SOLVED: To solve the problem wherein traces of a gate are produced on a lens unit when an optical element, such as an LED chip or the like, is sealed up with resin to form an optical element, and the traces deteriorate the characteristics, dimensional accuracy, and quality level of external appearance of the optical element. SOLUTION: Chips 4 mounted on lead frames 1 are housed in cavities 19 and sealed up with resin to form optical electronic parts through a resin sealing device. The resin sealing device comprises a cavity 19 whose inner bottom confronts the light emitting face of the chip 4, a female mold 18 where the capacity 19 is provided, a male mold 10 confronting the female mold 18, a fixing mechanism 14 fixing the lead frame 1 to the male mold 10, a resin passage 17 communicating with the cavity 19 through the intermediary of a gate 23 when the female mold 18 and the male mold 10 are clamped, and a plunger 21. When the female mold and the male mold are clamped together, a die matching surface PL is formed at a part opposite to the light emitting face of the chip 4 in the cavity 19, and molten resin 24 which is formed by melting a resin tablet 22 is injected by the plunger 21 into the cavity 19 through the gate 23. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To solve the following problem: when a resin is molded by making a substrate which has flexibility and in which an electronic component and an outside connection electrode part are formed to a package substrate by using conventional resin molding molds, in clamping the molds, when a resin material is injected/packed in a cavity with a package part engaged, gaps are formed between mold surfaces and the substrate to generate defective molding such as burrs. SOLUTION: In the resin molding molds 11 and 12, projections 15 (15a and 15b) for preventing the burrs formed on the mold surfaces 13 and 16 using the characteristics of the package substrate 1 having flexibility are formed. In clamping the molds 11 and 12, the projections 15 are inserted into the substrate 2 engaged with the molds 11 and 12, and the resin material 19 is injected/packed in each cavity 14 or 17 without forming the gaps between the substrate 2 and the mold surfaces 13 and 16, so that the leakage of the resin material 19 to a cavity peripheral part (package peripheral part) can efficiently be prevented. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a mold for molding a resin constituted so as to make the clamping pressure to a substrate proper and uniform even if the substrate is made large-sized and the irregularity of thickness or the like occurs in the substrate, and a resin molding method. SOLUTION: The lower mold 1 of the mold for molding the resin is provided with an underside holder 3, two underside blocks 4 placed on the underside holder 3, the pot block 5 fitted in the through-hole of the underside holder 3 and the space between the underside blocks 4 and the pressure sensors 8 arranged between the underside holder 3 and the underside blocks 4. An upper side holder 11, the piezoelectric element 20 fixed to the recessed part 18 of the upper side holder 11 and the cavity block 12 fixed to the under surface of the piezoelectric element 20 are provided to the upper mold 2 opposed to the lower mold 1. The clamping forces applied to respective substrates 10L and 10R are detected by the pressure sensors 8. When the clamping pressures are less than a target value, voltage is applied to the piezoelectric element 20 to protrude an end surface and the back surface of the cavity block 12 is pressed by the end surface to set the clamping pressures to the target value. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a mold for molding a resin, constituted so as to suppress the occurrence of wrinkles in a film for use in molding the resin, and a resin molding method. SOLUTION: The mold for molding the resin is equipped with a lower mold 1, the upper mold 2 opposed thereto, the film 3 provided between both molds under tension, the cavity 7 provided to the upper mold 2, the protruded parts 11 provided on the side of a feed-out roll 8 in the lower mold 1, the recessed parts 13 provided in the upper mold 2 so as to be opposed to the protruded parts 11 and the edge parts 14 with blades partially provided to the ridgelines of the protruded parts 11 and the recessed parts 13. Notches 16 are formed to the film 3 by fitting the protruded parts 11 and the recessed parts 13 at the time of mold clamping. By this constitution, the notches are formed so as to hold the region corresponding to the molding of the resin performed hereinafter when the molds 1 and 2 are clamped after the molding of the resin, mold opening and the feed of the film are successively performed. Accordingly, the tension applied to the film is uniformized not only to eliminate produced wrinkles 15 but also suppress the occurrence of new wrinkles 15. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To solve a problem that the clamping operation of a mold can not stably performed when resin seal molding with the conventional mold structure which elastic supports and receives corresponding to a substrate on which electronic parts are mounted by using a mold for resin seal molding of electronic parts. SOLUTION: A mold structure is provided with an elastic member 37 by using a mold base 10, not a holder base 14, as a base end. A main block 18 is directly elastic supported and received by the elastic member 37. Especially, the clamping operation in the mold for resin seal molding of electronic parts can be performed. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an external appearance inspection method for a substrate sealed with the resin, which can effectively solve various problems of an external appearance inspection in response to the external appearance inspections with stability using an external appearance inspection mechanism, which externally inspects an anomalous formation and an anomalous external appearance of a resin surface formation of the substrate sealed with the resin by using an image process. SOLUTION: The external appearance inspection method executes a defect inspection on an independent surrounding area 33 and an independent top surface 32, which are automatically generated as independent inspection areas from a surrounding area 6 and a top surface 5 of a resin surface formation P, in order to implement the external appearance inspection method for the resin surface formation P of the substrate sealed with the resin 4 , which is a substrate 1 formed with a resin formation 2, by using the external appearance inspection mechanism. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a method for sealing and molding an electronic component with a resin capable of efficiently solve the problems on resin molding such as resin burrs on a face 10 where a chip is not mounted, inferiority of a wire and excessive use of the resin by closely sticking the face where the chip is not mounted for a lead frame mounted with a semiconductor chip being the electronic component and a release film without any gap and surely, and an apparatus therefor. SOLUTION: In the method for sealing and molding the electronic component with the resin, when upper and lower molds 1 and 2 are clamped, a sliding member 21 is moved upward from a part approximately just below a plurality of the chips 8 and the wires 9 inserted and mounted in a cavity forming part 5, and a required amount of a molten resin 13 on the top face of the sliding member 21 is also elevated therewith to immerse and wrap a plurality of the number of the chips 8 and the wires 9 and it is compression-molded by a required pressure to closely stick without gap and surely the face 10 where the chip is not mounted of the lead frame 7 mounted with the chips 8 being the electronic components and the release film 4. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To improve productivity of preparations by enabling effective production of a package 2 (preparations) when a fabricated substrate 1 is cut off and each package 2 is separated and formed by using cut-off equipment of a substrate. SOLUTION: Firstly, the fabricated substrate 1 is transferred to a platform 14 installed in the cutting-off equipment and sucked and fixed. In the state that the substrate 1 is sucked and fixed, the cleavage site 9 of the substrate 1 is cut by using a shearing blade 17. Each package 2 is separated and formed from the substrate 1. Secondly, each of the packages 2 cut from the substrate 1 is sucked and engaged by using transport mechanism G installed in the cutting-off equipment. In the state that each of the packages 2 is sucked and engaged, steam is jetted against each of the packages 2, thereby cleaning it. Pressure-feeding of the air is performed to the cleaned package 2, thereby drying it. COPYRIGHT: (C)2004,JPO&NCIPI