WO2007029504A1 - エポキシ樹脂組成物及び該組成物を含むダイボンド剤 - Google Patents
エポキシ樹脂組成物及び該組成物を含むダイボンド剤 Download PDFInfo
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- WO2007029504A1 WO2007029504A1 PCT/JP2006/316521 JP2006316521W WO2007029504A1 WO 2007029504 A1 WO2007029504 A1 WO 2007029504A1 JP 2006316521 W JP2006316521 W JP 2006316521W WO 2007029504 A1 WO2007029504 A1 WO 2007029504A1
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- epoxy resin
- resin
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- temperature
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Definitions
- the present invention relates to an epoxy resin composition that forms a stable B-stage state. Moreover, this invention relates to the epoxy resin composition which can be hardened in parallel with a wire connection process etc. These epoxy resin compositions are suitable for die bond agent use for semiconductors.
- Epoxy resin is used in various applications because of its excellent adhesiveness, heat resistance and moisture resistance.
- liquid epoxy resins can be applied to devices with complex and fine designs in the semiconductor field where miniaturization and high-speed processing are being promoted, and their application fields have been greatly expanded in recent years.
- liquid epoxy resin has great influence on workability such as viscosity and fluidity, and requires careful attention when handling.
- the die-bonding agent that fixes the chip on the substrate is the best one.
- the die bond agent is required to be able to more accurately and efficiently mount a chip that becomes larger and multi-layered.
- the mainstream die-bonding agent is a liquid epoxy resin added with inorganic fillers such as silica and alumina, and conductive fillers such as silver, and this is applied onto the substrate and printed to mount the chip.
- inorganic fillers such as silica and alumina
- conductive fillers such as silver
- This B-stage method includes (1) a method of forcibly stopping the curing reaction in the middle, and (2) a method of curing the reaction system in the presence of a reaction system having a low curing temperature range (for example, patent documents). There is 1). Of these (1) This method is applicable to many types of reaction systems that are adaptable, but the stability of the B-stage state is insufficient. On the other hand, the method (2) has a problem that the type of reaction system is limited and the stability power in the B stage state is not always sufficient.
- “stability” means that even after being left for a predetermined period in the B stage state, it exhibits almost the same behavior as the initial stage. If this stability is poor, the product cannot be stored in the B-stage state and the product yield decreases.
- the die-bonding agent is completely cured, that is, in a so-called C-stage state, such as a B-stage cover. If the curing is insufficient due to insufficient process time or the like, In the process, for example, in the process of wire bonding or resin sealing, the uncured components may volatilize to generate voids, which may reduce the reliability of the product. Even if curing progresses in parallel with the wire bonding step or the like, it is desirable that the die bonding agent does not cause voids.
- Patent Document 1 Special Table 2005—513192
- the present invention provides an epoxy resin composition that forms a stable B-stage state and provides a cured product free from voids and the like, and a die bond agent for a semiconductor containing the epoxy resin composition. Objective.
- the present invention provides:
- (B) epoxy resin hardener The amount of the reactive group equivalent of (B) epoxy resin hardener to the equivalent of epoxy group of (A) epoxy resin is from 0.8 to 1.25,
- thermoplastic resin particles at 25 ° C. are selected from methallyl resin, phenoxy resin, and butadiene resin, and have a predetermined molecular weight and particle size.
- the composition of the present invention has excellent storage stability in the B-stage state, and can improve the yield of semiconductor products. Furthermore, by adjusting to a predetermined volatile content and viscosity, it is possible to give almost no voids and a cured product even when curing progresses in parallel in the resin sealing step. .
- epoxy resin (A) known ones can be used as the epoxy resin (A). Examples include novolac type, bisphenol type, biphenyl type, phenol aralkyl type, dipentapentene type, naphthalene type, amino group-containing type, silicone-modified epoxy resin described below, and mixtures thereof. Of these, bisphenol A type, bisphenol F type and silicone-modified epoxy resin are preferred. Further, at 25 ° C, a liquid resin is preferred, more preferably the viscosity is lOOPa's or less, more preferably lOPa's or less.
- the curing agent (B) known ones can be used, and examples thereof include phenol resin (including silicone-modified phenol resin described later), acid anhydrides, and amines. Among these, in view of the balance between curability and stability in the B stage state, phenol resin and silicone-modified phenol resin are preferable.
- the phenol resin include novolak type, bisphenol type, trishydroxyphenol methane type, naphthalene type, cyclopentaphene type, phenol aralkyl type, and the like. These may be used alone or in combination of two or more. May be used. Of these, the novolak type and the bisphenol type are preferred, and the viscosity is preferably 100 ° C, and is preferably lOPa ⁇ s, especially lPa ⁇ s or less! /.
- the resin is a silicone-modified resin having at least a part or all of the (A) epoxy resin and (B) curing agent, particularly phenol resin, and having a silicone residue in the molecule.
- An example of the silicone-modified resin is a copolymer obtained by reacting an aromatic polymer with an organopolysiloxane. Examples of the aromatic polymer include compounds represented by the following formula (3) or (4).
- R 11 is a hydrogen atom in the case of phenol resin, and is an oxysilane group-containing group represented by the following formula in the case of epoxy resin,
- X is a hydrogen atom or a bromine atom
- n is an integer of 0 or more, preferably 0 to 50, particularly preferably an integer of 1 to 20.
- aromatic polymers include alkenyl group-containing compounds of the following formulas (5) to (8).
- It is preferably an integer from 0 to 5, particularly preferably 0 or 1.
- the organopolysiloxane to be reacted with the aromatic polymer is represented by the formula (9).
- R 13 is a hydrogen atom, an organic group containing an amino group, an epoxy group, a hydroxy group or a carboxy group, or an alkoxy group.
- R 14 is a substituted or unsubstituted monovalent hydrocarbon group, hydroxy group, alkoxy group, or alkoxy group, and a and b are 0.001 ⁇ a ⁇ l, l ⁇ b ⁇ 3, It is a number that satisfies l ⁇ a + b ⁇ 4.
- the number of key atoms in one molecule is 1 to 1000, and R 13 directly connected to the key atom in one molecule is 1 or more.
- examples of the amino group-containing organic group represented by R 13 include the following, wherein c is 1, 2, or 3.
- Examples of the epoxy group-containing organic group include the following, where c is 1, 2, or 3.
- Examples of the hydroxy group-containing organic group include the following, wherein d is 0, 1, 2, or 3, and e is 1, 2, or 3.
- Examples of the carboxy group-containing organic group include the following, where f is an integer from 1 to: LO.
- alkoxy group examples include those having 1 to 4 carbon atoms such as a methoxy group, an ethoxy group, and an n-propoxy group.
- the substituted or unsubstituted monovalent hydrocarbon group represented by R " is preferably one having 1 to 10 carbon atoms, such as a methyl group, an ethyl group, an n-propyl group, an isopropyl group, or an n-butyl group.
- a and bi are the forces that are the values described above, preferably ⁇ or 0. 01 ⁇ a ⁇ 0. 1, 1. 8 ⁇ b ⁇ 2, 1. 85 ⁇ a + b ⁇ 2.
- the number is preferably between 2 and 400, especially between 5 and 200.
- organopolysiloxane include compounds of formula (10) or (11).
- R 16 corresponds to R 13 in the above formula (9) and is a monovalent hydrocarbon group containing an amino group, an epoxy group, a hydroxy group, or a carboxyl group.
- R 15 corresponds to R 14 in formula (9), and is a substituted or unsubstituted monovalent hydrocarbon group, preferably a methyl group or a phenyl group, and p is an integer of 0 to 1,000, preferably Q is an integer of 3 to 400, and q is an integer of 0 to 20, preferably 0 to 5.
- organoporosiloxanes include the following.
- the molecular weight of the organopolysiloxane of formula (9) is desirably 100 to 100000 force.
- the molecular weight of the onoregano polysiloxane is within the above range, it reacts with the organopolysiloxane.
- a uniform structure in which the organopolysiloxane is uniformly dispersed in the matrix or a sea-island structure in which the organopolysiloxane forms fine layer separation in the matrix appears.
- the molecular weight of the organopolysiloxane is relatively small, particularly when the molecular weight is 100 to 10,000, a uniform structure is formed.
- the molecular weight of the organopolysiloxane is relatively large, particularly when the molecular weight is 1000 to 100,000, a sea-island structure is formed.
- the Whether a uniform structure or a sea-island structure is selected depends on the application.
- the molecular weight of the organopolysiloxane is less than 100, the cured product becomes rigid and brittle, whereas if the molecular weight is greater than 100000,
- the blending ratio of (A) epoxy resin and (B) curing agent is equal to the epoxy group equivalent in (A) and curing. It is desirable that the equivalent ratio of reactive groups in the agent is 0.8 ⁇ (epoxy resin) Z (curing agent) ⁇ 1.25, especially 0.9 ⁇ (epoxy group) Z (curing agent ) It is desirable that ⁇ 1.1. If the equivalence ratio is not within this range, the reaction may be partially unreacted, which may impair the performance of the cured product and the performance of the semiconductor device using the cured product.
- composition of the present invention comprises particulate (c) thermoplastic resin particles, which are solid at 25 ° C. That is, it does not form a resin phase that is compatible with the epoxy resin (A) during storage and at the temperature applied on the substrate.
- methallyl resin, phenoxy resin, butadiene resin, polystyrene or copolymers thereof are preferable.
- it may be a core-shell structure in which the resin is different in the inner core (core) part and outer shell (shell) part of the particle.
- the core is a rubber particle having a silicone resin, a fluorine resin, or a butadiene resin
- the shell is the above-described various thermoplastic resins having a linear molecular chain force.
- thermoplastic resin particles are substantially spherical, cylindrical or prismatic, indeterminate, crushed, and flakes, etc.
- An indefinite shape that does not have an acute angle portion is preferable.
- the average particle diameter of the thermoplastic resin particles is preferably adjusted as appropriate according to the application. It is usually desirable for the maximum particle size, ie 98% cumulative particle size, to be 10 microns or less, especially 5 microns or less, and the average particle size, ie median diameter, is 0.1 to 5 microns, especially 0.1 to 2 microns. Is desirable. If the maximum particle size is larger than the upper limit value or the average particle size is larger than the upper limit value, a part of the particle thermoplastic resin is sufficiently swollen or dissolved in the B-stage or curing stage. And the properties of the cured composition may be impaired. On the other hand, when the average particle size is smaller than the lower limit, the viscosity of the composition increases, and the workability may be remarkably deteriorated.
- the particle size can be measured by electron microscope observation or laser diffraction scattering method.
- the maximum particle size be 20% or less, particularly 10% or less of the thickness of the die bond agent applied on the substrate.
- the diameter is desirably 10% or less, particularly 5% or less of the thickness.
- thermoplastic resin particles may have a crosslinked structure. However, it is preferable to form a structure in which the thermoplastic resin (C) is uniformly dispersed in the epoxy resin network structure. Therefore, it is preferable that the degree of cross-linking is lower, and a linear molecular chain without cross-linking is more preferable.
- the molecular weight of the thermoplastic resin particles is appropriately selected depending on the type of resin.
- the number average molecular weight in terms of polystyrene is 10,000,000,000,000, preferably 10,000,000,000,000,000, weight average molecular weight force, 100,000,000,000,000,000, preferably ⁇ 100, 000 to 0, 000, 000.
- Number average molecular weight force s From the above lower limit value / J, or when the weight average molecular weight is smaller than the above lower limit value, T1 becomes too low, and the B stage appears early, so the A stage state appears. May become unstable. In addition, sufficient B-stage hardness is not obtained, and there is a risk that defects such as voids, outflow, or die shift may occur, especially in die bond applications.
- T1 will be high, the difference from T2 will be less than 80 ° C, and the appearance temperature of the C stage will approach As a result, the B stage may become unstable. Also, part of the particle thermoplastic resin may inhibit the formation of the epoxy resin network after the B-stage or C-stage.
- thermoplastic resin particles is 100 masses of the sum of (A) epoxy resin and (B) epoxy resin hardener in order to obtain a stable B-stage state. 3 to 60 parts by mass (Examples 10 and 11 are included), preferably 5 to 50 parts by mass, and more preferably 10 to 30 parts by mass with respect to parts.
- the content is less than the lower limit, sufficient B-stage hardness cannot be obtained, and there is a risk that defects such as voids, spillage, or dishift may occur especially in die bond applications.
- the content is higher than the upper limit, the B stage state becomes too hard, and there is a risk that defects such as insufficient adhesion may occur particularly in die bonding agent applications.
- thermoplastic resin particles are preferably surface-treated.
- the surface treatment can be performed by a known method using a known surface treatment agent.
- silane coupling agents are preferred.
- silane coupling agents are preferred.
- Gurishidokishipuro pills tri diethoxy silane, ⁇ - glycidoxypropyl triethoxysilane, ⁇ - methacrylonitrile Xypropylmethyldimethoxysilane , ⁇ -methacryloxypropyltrimethoxysilane, ⁇ —methacryloxypropylmethyljetoxysilane, ⁇ —methacryloxypropyltriethoxysilane, ⁇ - ⁇ (aminoethyl) ⁇ -aminopropylmethyldimethoxysilane, N—j8 (Aminoethyl) ⁇ —Aminopropyltrimethoxysilane , N—j8 (Aminoethyl) ⁇ —Aminopropyltriethoxysilane, ⁇ —Aminopropyltrimethoxysilane , ⁇ —Aminopropyltriethoxysilane, ⁇ —phenylene Lu y
- the surface treatment method depends on the difference between wet treatment and dry treatment.
- the amount of silane coupling agent used for the surface treatment depends on the surface area of the thermoplastic resin particles, but is typically 0.1 to 5 parts by weight with respect to 100 parts by weight of the total weight of the silane coupling agent. It is.
- basic organic compounds such as organic phosphorus, imidazole and tertiary amines can be mentioned.
- organophosphorus include triphenylphosphine, tributylphosphine, tri ( ⁇ tolyl) phosphine, tri ( ⁇ -methoxyphenyl) phosphine, tri ( ⁇ ethoxyphenyl) phosphine, triphenylphosphine 'triphenyl- Examples include a ruporate derivative, tetraphenylphosphine'tetraphenylporate and the like.
- imidazole examples include 2-methylimidazole, 2-ethylimidazole, 2-ethyl-4-methylimidazole, 2-phenolimidazole, 2-phenol-methyl 4-methylimidazole, 2-phenol-4-methyl-5-hydroxymethyl.
- tertiary amines include triethylamine, benzyldimethylamine, ⁇ -methylbenzyldimethylamine, 1,8 diazabicyclo (5,5), and the like. 4, 0) Undecene 7 etc.
- the amount of (D) curing accelerator added is the sum of ( ⁇ ) epoxy resin and ( ⁇ ) epoxy resin curing agent.
- the amount is preferably 0.1 to 10 parts by weight, particularly 0.2 to 5 parts by weight per 100 parts by weight. If the curing accelerator is less than the lower limit, the resin composition may be insufficiently cured, and if it exceeds the upper limit, the storage stability of the resin composition or the B stage state May interfere with the stability of the system.
- R 1 to R 8 are each independently a hydrogen atom, or a hydrocarbon group having 1 to 10 carbon atoms, or a halogen atom.
- R 9 is a methyl group or a methylol group
- R 1Q is a hydrocarbon group having 1 to 10 carbon atoms.
- an inorganic filler As the inorganic filler, known ones can be used, for example, fused silica, crystalline silica, alumina, titanium oxide, silica titer, boron nitride, aluminum nitride, silicon nitride, magnesia, magnesium silicate, talc, My power can be listed, and these can be used alone or in combination of two or more.
- silica, alumina, or talc alone or in combination of two or more.
- the maximum particle size of the inorganic filler is desirably 20% or less, particularly 10% or less, of the thickness of the die bond agent applied on the substrate.
- the average grain size is preferably 10% or less, particularly 5% or less of the thickness. If the maximum particle size is larger than the above upper limit value or the average particle size is larger than the upper limit value, the chip, the substrate, the gold wiring, etc. may be damaged, or at the boundary between the inorganic filler and other parts. Local stress may occur, which may impair the function of the semiconductor device.
- the inorganic filler that has been surface-treated with a silane coupling agent in advance. More preferably, the epoxy resin of component (A) and the filler surface-treated with a coupling agent are kneaded in advance under reduced pressure. As a result, the interface between the filler surface and the epoxy resin can be well wetted, and the moisture resistance reliability is greatly improved.
- silane coupling agent examples include ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -glycidoxypropinoremethinolegoxysilane, ⁇ -glycidoxypropyltriethoxysilane, ⁇ -styryltri Methoxysilane , ⁇ -methacryloxypropylmethyldimethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ -methacryloxypropylmethinolegoxysilane, ⁇ -methacryloxypropyltriethoxysilane, ⁇ talyloxypropyltrimethoxysilane, N — J8 (Aminoethyl) ⁇ -Aminopropylmethyldimethoxysilane, ⁇ — ⁇ (Aminoethyl) ⁇ -Aminopropyltrimethoxysilane, ⁇ — ⁇ (Aminoethyl)
- silica is preferable, and 1 to 40 is preferably used relative to 100 parts by mass of ( ⁇ ) to (D). 0 parts by mass, preferably 10 to 200 parts by mass is blended.
- a calorific additive may be added to the composition of the present invention in an amount that does not impair the object of the present invention.
- Additives include silane coupling agents, flame retardants, ion trapping agents, waxes, colorants, adhesion aids and the like.
- silane coupling agent examples include ⁇ -glycidoxypropinoletrimethoxysilane, ⁇ -glycidoxypropylmethyljetoxysilane, ⁇ -glycidoxypropyltriethoxysilane, ⁇ -styryltri Methoxysilane, ⁇ -methacryloxypropylmethyldimethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ -methacryloxypropynole methyljetoxysilane , ⁇ —methacryloxypropyltriethoxysilane, ⁇ —atalyloxypropyltrimethoxysilane , N—j8 (aminoethyl) ⁇ -aminopropylmethyl dimethoxysilane, ⁇ — ⁇ (aminoethyl) ⁇ -aminopropyltrimethoxysilane, N—j8 (aminoethyl) ⁇ -amino
- the amount used thereof is usually 0.1 to 5.0 parts by mass with respect to the total of 100 parts by mass of the above (A) to (D), preferably 0. 3 to 3.0 parts by mass.
- each component (A), (C) and (D), and when used, (B) and the above optional components are mixed using a known method, for example, a mixer, a roll or the like. Is obtained. Conditions such as mixing order, time, temperature, and atmospheric pressure can be controlled as necessary.
- volatiles are removed from each component under reduced pressure, typically 10 mmHg or less, preferably 5 mmHg or less.
- reduced pressure typically 10 mmHg or less, preferably 5 mmHg or less.
- (A), (B) and (D) are placed at a temperature of 120 to 170 ° C, preferably 140 to 160 ° C for about 4 to 8 hours,
- (C) Particulate thermoplastic resin is placed at 80-120 ° C for 20-30 hours.
- composition of the present invention is obtained when DSC measurement is performed while an empty aluminum cell is used as a reference sample and the sample is placed in an aluminum cell and heated from 25 ° C to 300 ° C at 10 ° CZ in air.
- A At least one exothermic peak is observed on the lower temperature side than the curing exothermic peak of epoxy resin. For example, as shown in FIG. 1, the exothermic peak has a smaller total calorie than the exothermic peak of (A) epoxy resin.
- C) the thermoplastic resin particles are plasticized and swollen to form a (A) half-mixed phase with epoxy resin, etc. B stage status.
- the peak temperature (T1) force of the low-temperature side exothermic peak is 3 ⁇ 40 ° C or higher, preferably 90 ° C or higher, and 70 to 110 ° C or higher than the curing exothermic peak temperature (T2), preferably 80 to 100 ° C lower.
- T1 peak temperature
- T2 curing exothermic peak temperature
- thermoplastic resin particles are not miscible with epoxy resin (A) from room temperature (25 ° C.) until the exothermic reaction takes place. It is stable.
- the low-temperature exothermic reaction is based on phase change, not based on a chemical reaction such as a curing reaction, and is independent of the curing reaction of the epoxy resin. It is considered to be obtained.
- the composition of the present invention is measured when TGA measurement is performed by using an empty aluminum cell as a reference sample and increasing the temperature in air from 25 ° C to 300 ° C at 10 ° CZ in air.
- the mass loss up to 200 ° C is 1% or less, most preferably 0.8% or less.
- the decrease in mass is mainly due to volatilization of volatile components in the composition.
- the volatile component include an epoxy resin, an epoxy resin hardener, a low molecular weight component of thermoplastic resin particles, and a solvent used for the synthesis of other components in the composition.
- the mass reduction amount can be achieved by previously removing each component of the epoxy resin composition under reduced pressure and warming for a predetermined time to remove volatile components.
- the die bond agent when the die bond agent is exposed to a high temperature, for example, 150 ° C. to 200 ° C., during the process after chip mounting, that is, the step of wire bonding or resin sealing, the volatile component in the die bond agent Vaporization is less likely to occur and voids are reduced.
- curing can be performed to some extent, and the process time can be shortened.
- the composition is 150 ° C to 200 ° C in the step after chip mounting, that is, the step of wire bonding or resin sealing. When exposed to high temperatures, the composition may soften and the chip may move its mounting position.
- the viscosity at 150 ° C to 200 ° C is higher than the upper limit, the composition may be too hard during chip mounting, which may result in insufficient bonding.
- the viscosity within the above range, it is possible to give a cured product without voids even if curing proceeds during the wire connection process or the resin sealing process.
- the conditions for B-staging the composition of the present invention are such that the force temperature that can be appropriately adjusted according to the composition and use of the composition is preferably in the range of T1 to T2.
- ⁇ Considering the stability in the stage state, it is desirable to be in the range of Tl ⁇ ( ⁇ 2—20 ° C).
- the time is selected depending on the temperature. That is, if a lower temperature is selected within the range of T1 to T2, the time is longer, and if the temperature is higher, the time is shorter.
- the stage does not advance sufficiently, and there is a possibility that defects such as void outflow or die shift may occur particularly in the case of die bonding agent use.
- the temperature is high and the time is long, a part of the C stage proceeds, and there is a possibility that defects such as insufficient adhesion may occur particularly in the case of die bonding agent use.
- the chip mounting conditions are also appropriately adjusted according to the composition and use of the composition.
- the main conditions are preheating temperature and time just before chip mounting, chip and substrate temperature, time and pressure when chip mounting.
- the purpose of preheating is to remove moisture from the substrate and die bond agent, to soften the die bond agent, and to improve the adhesion between the chip and the die bond agent.
- the preheating temperature is preferably 50 ° C to 150 ° C and the time is preferably 10 seconds to 10 minutes.
- the chip mounting temperature is preferably 25 ° C to 250 ° C for the chip, 25 ° C to 200 ° C for the substrate, 0.1 to 10 seconds for the time, and 0.01 MPa to 10 MPa for the pressure.
- composition of the present invention is particularly suitable for a die bond agent for semiconductors.
- the design of the semiconductor device is not particularly limited, but is suitable for applications requiring more accurate and efficient mounting such as a large chip or chip stacking.
- Tables 1 and 2 The components shown in Tables 1 and 2 were mixed using a planetary mixer at 25 ° C, passed through three rolls at 25 ° C, and then mixed at 25 ° C with a planetary mixer. Compositions of Examples, Reference Examples and Comparative Examples were prepared. In Tables 1 and 2, a to o represent the following components, and the number represents parts by mass.
- Epoxy resin a (Bisphenol A type epoxy resin, epoxy equivalent 180, RE310S (trade name), Nippon Kayaku Co., Ltd.)
- Silicone modified epoxy resin o (Synthesis example 3)
- Hardener b (phenol novolak, epoxy equivalent 110, LD92 (trade name), manufactured by Meiwa Kasei Co., Ltd.),
- Particulate thermoplastic resin h (Processing example 4)
- thermoplastic resin 1 Metal polymethacrylate, number average molecular weight 500, 000, weight average molecular weight 1,500, 000, average particle size 1 micron, maximum particle size 3 microns
- Curing accelerator c tetraphenylphosphine'tetraphenylporate, TPP-K (trade name), Hokuko Chemical Co., Ltd.)
- Curing accelerator d Trifluoro-phosphine, TPP, manufactured by Hokuko Chemical Co., Ltd.
- Silica spherical fused silica, average particle size 0.8 micron, maximum particle size 3 micron, SE2030 (trade name), manufactured by ADMATEX CORPORATION),
- Carbon black (Denka Black (trade name), manufactured by Denki Kagaku Kogyo Co., Ltd.),
- Silane coupling agent KBM-403 (trade name), manufactured by Shin-Etsu Chemical Co., Ltd.).
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 500,000, weight average molecular weight 1,500,000, average particle size 1 (Micron, maximum particle size 3 microns) lOOg and 900 g of water were added and stirred thoroughly at 25 ° C until the whole became a uniform slurry.
- lOOg of water is put into a flask equipped with a stirring blade, dropping funnel, thermometer, and reflux tube, and 2 g of silane coupling agent ( ⁇ -methacryloxypropyltrimethoxysilane) is dropped in about 10 minutes while stirring.
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 500,000, weight average molecular weight 1,500,000, average particle size 1 100 g and 900 g of water were added, and the mixture was stirred well at 25 ° C until the whole became a uniform slurry.
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 500,000, weight average molecular weight 1,500,000, average particle size 1 100 g and 900 g of water were added, and the mixture was stirred well at 25 ° C until the whole became a uniform slurry.
- silane coupling agent ((-glycidoxypropyltrimethoxysilane)
- This aqueous silane coupling agent solution was dropped into a slurry of particulate thermoplastic resin Z water in about 30 minutes and further aged at 25 ° C for 12 hours. This force also removed water and gave a white powder. This was designated as particulate thermoplastic resin f.
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 500,000, weight average molecular weight 1,500,000, average particle size 1 100 g and 900 g of water were added, and the mixture was stirred well at 25 ° C until the whole became a uniform slurry.
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 500,000, weight average molecular weight 1,500,000, average particle size 1 100 g and 900 g of water were added, and the mixture was stirred well at 25 ° C until the whole became a uniform slurry.
- silane coupling agent N-Fel- ⁇ -Aminopropyltrimethoxysilane
- This aqueous silane coupling agent solution was dropped into a slurry of particulate thermoplastic resin Z water in about 30 minutes and further aged at 25 ° C. for 12 hours. Remove water from this A white powder was obtained. This was designated as particulate thermoplastic resin g.
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 50,000, weight average molecular weight 150,000, average particle size 1 micron
- lOOg and 900 g of water were added and stirred thoroughly at 25 ° C until the whole became a uniform slurry.
- lOOg of water is put into a flask equipped with a stirring blade, dropping funnel, thermometer, and reflux tube, and 2 g of silane coupling agent (y-methacryloxypropyltrimethoxysilane) is added in about 10 minutes while stirring.
- the solution was added dropwise and further aged at 25 ° CZ for 2 hours.
- This aqueous silane coupling agent solution was dropped into a slurry of particulate thermoplastic resin Z water in about 30 minutes and further aged at 25 ° C. for 12 hours. Water was removed from this to obtain a white powder. This was designated as particulate thermoplastic resin h.
- particulate thermoplastic resin core core of butadiene rubber, core of shell of partially crosslinked polymethyl methacrylate, core-shell structure, average (Particle size 1 micron, maximum particle size 3 microns) 100 g and 900 g of water were added, and the mixture was sufficiently stirred at 25 ° C until the whole became a uniform slurry.
- particulate thermoplastic resin core core of butadiene rubber, core of shell of partially crosslinked polymethyl methacrylate, core-shell structure, average (Particle size 1 micron, maximum particle size 3 microns) 100 g and 900 g of water were added, and the mixture was sufficiently stirred at 25 ° C until the whole became a uniform slurry.
- silane coupling agent ⁇ -methacryloxypropyltrimethoxysilane
- particulate thermoplastic resin i was designated as particulate thermoplastic resin i.
- particulate thermoplastic resin made of polysylene, number average molecular weight 100,000, weight average molecular weight 300, 000, average particle size 1 micron, maximum particle size (3 microns in diameter) 100 g and 900 g of water were added and stirred thoroughly at 25 ° C until the whole became a uniform slurry. Separately, 100 g of water was placed in a flask equipped with a stirring blade, dropping funnel, thermometer, and reflux tube, and 2 g of silane coupling agent (P-styryltrimethoxysilane) was added dropwise in about 10 minutes while stirring. Aged at ° CZ for 2 hours.
- silane coupling agent P-styryltrimethoxysilane
- This silane cutlet The aqueous pulling agent solution was dropped into the slurry of particulate thermoplastic resin Z water in about 30 minutes, and further aged at 25 ° C for 12 hours. Water was removed from this to obtain a white powder. This was a particulate thermoplastic resin.
- particulate thermoplastic resin made of polymethyl methacrylate, number average molecular weight 3,000, weight average molecular weight 9,000, average particle diameter 1 micron, (Maximum particle size: 3 microns) 100 g and 900 g of water were added and stirred at 25 ° C until the whole became a uniform slurry. Separately, 100 g of water was put into a flask equipped with a stirring blade, dropping funnel, thermometer, and reflux tube, and 2 g of silane coupling agent ( ⁇ -metataloxypropyltrimethoxysilane) was added dropwise in about 10 minutes while stirring.
- silane coupling agent ⁇ -metataloxypropyltrimethoxysilane
- particulate thermoplastic resin k was designated as particulate thermoplastic resin k.
- each epoxy resin composition is collected in an aluminum cell, and the temperature is increased from 25 ° C to 300 ° C under air using an empty aluminum cell as a reference sample. The temperature was measured at a temperature rate of 10 ° CZ.
- the viscosity of the epoxy resin composition was measured immediately after production and after being allowed to stand at 25 ° C for a predetermined time.
- Epoxy resin composition 10 mg 20 ° C higher than T1 at a temperature (120 ° C for Comparative Examples 1 to 4) for 10 minutes and immediately after B-stage and at 25 ° C after B-stage DSC measurement was performed using the same method as in (a) for what was left for a predetermined time as shown in Using the c-stage peak area measured in (1) as an initial value, the ratio of the C-stage peak area to the initial value was calculated after standing for a predetermined time.
- Test specimens as shown in Fig. 2 were prepared, and SAT observation was performed on each specimen, and the number of specimens including voids Z total number of specimens (20) was calculated.
- the method for preparing the test piece is as follows.
- An epoxy resin composition (50 micron thickness, 12 mm x 12 mm) was coated on a BT substrate (200 micron thickness, 35 mm x 35 mm) with a solder resist (30 micron thickness) coated on the surface. This was heated for 10 minutes at a temperature 20 ° C higher than T1 (120 ° C for Comparative Examples 3 to 6) to form a B stage, and a silicon chip with a silicon nitride film (300 micron thick, 12.5 mm X 12.5 mm) was mounted at 150 ° C ZlMpaZl seconds to obtain test pieces.
- the maximum fillet width was observed for each of the 20 test pieces prepared in (d).
- a fillet is one in which sallow flows and the lateral force of the chip oozes out (Fig. 3). If the fillet width is large, the distance to the wire connection terminal on the board will be long, so 100 microns or less are required. Those exceeding 100 microns were rejected, and the number of rejected test pieces Z total test pieces (20) was calculated.
- the composition of the present invention has an increase in viscosity at the A stage of less than 30%, and is excellent in storage stability at the A stage.
- the composition of the present invention exhibits an initial curing heat generation of 95% or more even after a predetermined time has passed in the B stage state, and is excellent in storage stability in the B stage.
- Comparative Examples 1 and 2 when the chip was mounted after the force B stage, the storage stability at the B stage was approximately 95%, voids or fillets were generated. In contrast, the composition of the present invention had no voids or fillets even after the B stage.
- compositions (a) to (g) and the following tests (h) to (k) were conducted.
- tests of (1!) To (k) were also performed on some examples of the above-described Examples 1 to L1. The results are shown in Tables 6 and 7.
- composition lOmg was collected in an aluminum cell, and an empty aluminum cell was used as a reference sample, using TGA (Thermogravimetric Analyzer / Metler), 25 ° C force in air up to 300 ° C, heating rate 10 ° The mass loss (%) up to 200 ° C was measured in CZ minutes.
- TGA Thermogravimetric Analyzer / Metler
- An epoxy resin composition (50 micron thickness, 12 mm x 12 mm) was coated on a BT substrate (200 micron thickness, 35 mm x 35 mm) with a solder resist (30 micron thickness) coated on the surface. This was heated for 10 minutes at a temperature 20 ° C higher than T1 and B-staged, and a silicon nitride-coated silicon chip (300 micron thick, 12.5mm x 12.5mm) was 150 ° C (chip) Mounted at ZlOO ° C (substrate) / IMpa / l second.
- KMC-2520 epoxy sealant manufactured by Shin-Etsu Chemical Co., Ltd.
- mold temperature is 175 ° C
- injection time is 10 seconds
- injection pressure is 70KPa
- molding time is 90 seconds
- post-curing conditions are 180 ° CZ for 2 hours. Sealed.
- the size of the test specimen after molding is 1000 microns thick and 35 mm x 35 mm.
- the die shift value was measured for each of the 20 test pieces in FIG. 4 using a soft X-ray transmission device.
- the die shift value is the total value of the linear movement distances at the four corners of the chip. If this is larger than 50 microns, the die is rejected, and the number of rejected specimens Z is counted (20).
- compositions of Examples 12 to 17 had (h) a weight loss by TGA of less than 1%, and (i) a B stage viscosity of lOPa's to: LOOOPa's. Even when cured in the grease sealing process, voids were not generated and the die shift was also strong.
- composition of the present invention is suitable as a die-bonding agent for semiconductor products that forms a stable B-stage state and requires a high yield.
- those having a predetermined volatile content and viscosity can proceed to a wire connection step and a resin sealing step without providing a curing step after mounting the chip, thereby improving the productivity of the semiconductor device. .
- Fig. 1 is a DSC chart of the yarn and composite of Example 1.
- FIG. 2 is a cross-sectional view showing the configuration of a test piece on which a silicon chip created in an example is mounted.
- FIG. 3 is a conceptual diagram showing voids and fillets.
- FIG. 4 is a cross-sectional view showing the configuration of a resin-sealed semiconductor device test piece prepared in an example.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06796684.6A EP1921111B1 (en) | 2005-09-02 | 2006-08-23 | Epoxy resin composition and die bonding material comprising the composition |
US11/991,136 US20090133833A1 (en) | 2005-09-02 | 2006-08-23 | Epoxy Resin Composition and Die Bonding Material Comprising the Composition |
JP2007534321A JP4809355B2 (ja) | 2005-09-02 | 2006-08-23 | エポキシ樹脂組成物及び該組成物を含むダイボンド剤 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-254525 | 2005-09-02 | ||
JP2005254525 | 2005-09-02 |
Publications (1)
Publication Number | Publication Date |
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WO2007029504A1 true WO2007029504A1 (ja) | 2007-03-15 |
Family
ID=37835628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/316521 WO2007029504A1 (ja) | 2005-09-02 | 2006-08-23 | エポキシ樹脂組成物及び該組成物を含むダイボンド剤 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090133833A1 (ja) |
EP (1) | EP1921111B1 (ja) |
JP (1) | JP4809355B2 (ja) |
KR (1) | KR100900863B1 (ja) |
CN (1) | CN101184809A (ja) |
PT (1) | PT1921111T (ja) |
WO (1) | WO2007029504A1 (ja) |
Cited By (10)
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JP2009132828A (ja) * | 2007-11-30 | 2009-06-18 | Shin Etsu Chem Co Ltd | ダイボンド剤組成物及びそれを用いた半導体装置 |
JP2009161619A (ja) * | 2007-12-28 | 2009-07-23 | Shin Etsu Chem Co Ltd | 接着剤組成物 |
JP2009170845A (ja) * | 2008-01-21 | 2009-07-30 | Shin Etsu Chem Co Ltd | 半導体装置の製造方法 |
JP2010006912A (ja) * | 2008-06-25 | 2010-01-14 | Shin-Etsu Chemical Co Ltd | 接着剤組成物、接着フィルム及びダイシング・ダイアタッチフィルム |
JP2011162591A (ja) * | 2010-02-05 | 2011-08-25 | Mitsubishi Chemicals Corp | 三次元集積回路用の層間充填材組成物、塗布液、三次元集積回路の製造方法 |
JP2011231139A (ja) * | 2010-04-23 | 2011-11-17 | Kyocera Chemical Corp | 接着剤層の形成方法、及び接着剤組成物 |
JP2013007001A (ja) * | 2011-06-27 | 2013-01-10 | Shin-Etsu Chemical Co Ltd | 接着剤組成物 |
EP2250227A4 (en) * | 2008-02-25 | 2013-08-21 | Henkel Ag & Co Kgaa | OUT OF THEIR PUNCHING CHIP FIXING PASTE |
JP2016037529A (ja) * | 2014-08-06 | 2016-03-22 | 信越化学工業株式会社 | 液状エポキシ樹脂組成物及びヒートシンク、スティフナー用接着剤 |
KR20180048679A (ko) * | 2015-08-31 | 2018-05-10 | 니폰 제온 가부시키가이샤 | 수지 조성물 |
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KR101114360B1 (ko) * | 2008-04-25 | 2012-02-10 | 주식회사 엘지화학 | 에폭시계 조성물, 접착 필름, 다이싱 다이본딩 필름 및 반도체 장치 |
DE102010043871A1 (de) * | 2010-11-12 | 2012-05-16 | Tesa Se | Klebmasse und Verfahren zur Kapselung einer elektronischen Anordnung |
JP5725559B2 (ja) * | 2011-12-28 | 2015-05-27 | 信越化学工業株式会社 | 液状導電性樹脂組成物及び電子部品 |
CN108565335B (zh) * | 2018-06-13 | 2022-03-18 | 咸阳天华电子科技有限公司 | 一种压力传感器用的不锈钢基覆康铜箔板的制备工艺 |
RU2756173C1 (ru) * | 2020-11-12 | 2021-09-28 | Федеральное государственное бюджетное учреждение науки Институт высокомолекулярных соединений Российской академии наук | Клеевая композиция для полимерных композиционных материалов |
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- 2006-08-23 WO PCT/JP2006/316521 patent/WO2007029504A1/ja active Application Filing
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- 2006-08-23 CN CNA2006800187261A patent/CN101184809A/zh active Pending
- 2006-08-23 EP EP06796684.6A patent/EP1921111B1/en active Active
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009132828A (ja) * | 2007-11-30 | 2009-06-18 | Shin Etsu Chem Co Ltd | ダイボンド剤組成物及びそれを用いた半導体装置 |
JP2009161619A (ja) * | 2007-12-28 | 2009-07-23 | Shin Etsu Chem Co Ltd | 接着剤組成物 |
JP2009170845A (ja) * | 2008-01-21 | 2009-07-30 | Shin Etsu Chem Co Ltd | 半導体装置の製造方法 |
EP2250227A4 (en) * | 2008-02-25 | 2013-08-21 | Henkel Ag & Co Kgaa | OUT OF THEIR PUNCHING CHIP FIXING PASTE |
KR101510665B1 (ko) | 2008-02-25 | 2015-04-10 | 헨켈 아게 운트 코. 카게아아 | 자기-필렛화 다이 부착 페이스트 |
JP2010006912A (ja) * | 2008-06-25 | 2010-01-14 | Shin-Etsu Chemical Co Ltd | 接着剤組成物、接着フィルム及びダイシング・ダイアタッチフィルム |
JP2011162591A (ja) * | 2010-02-05 | 2011-08-25 | Mitsubishi Chemicals Corp | 三次元集積回路用の層間充填材組成物、塗布液、三次元集積回路の製造方法 |
JP2011231139A (ja) * | 2010-04-23 | 2011-11-17 | Kyocera Chemical Corp | 接着剤層の形成方法、及び接着剤組成物 |
US8772176B2 (en) | 2010-04-23 | 2014-07-08 | Kyocera Chemical Corporation | Method for forming an adhesive layer and adhesive composition |
JP2013007001A (ja) * | 2011-06-27 | 2013-01-10 | Shin-Etsu Chemical Co Ltd | 接着剤組成物 |
JP2016037529A (ja) * | 2014-08-06 | 2016-03-22 | 信越化学工業株式会社 | 液状エポキシ樹脂組成物及びヒートシンク、スティフナー用接着剤 |
KR20180048679A (ko) * | 2015-08-31 | 2018-05-10 | 니폰 제온 가부시키가이샤 | 수지 조성물 |
KR102539141B1 (ko) | 2015-08-31 | 2023-05-31 | 니폰 제온 가부시키가이샤 | 수지 조성물 |
Also Published As
Publication number | Publication date |
---|---|
JP4809355B2 (ja) | 2011-11-09 |
EP1921111A1 (en) | 2008-05-14 |
EP1921111A4 (en) | 2010-03-03 |
CN101184809A (zh) | 2008-05-21 |
JPWO2007029504A1 (ja) | 2009-03-19 |
KR20080009288A (ko) | 2008-01-28 |
PT1921111T (pt) | 2017-07-10 |
KR100900863B1 (ko) | 2009-06-04 |
EP1921111B1 (en) | 2017-04-12 |
US20090133833A1 (en) | 2009-05-28 |
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