摘要:
Provided is a simple and low-cost method for manufacturing, in a short time, many light emitting devices wherein adhesiveness between a leadframe and a thermosetting resin composition is high. The method for manufacturing the light emitting device having a resin package (20) wherein the optical reflectivity at a wavelength of 350-800 nm after thermal curing is 70% or more and a resin section (25) and a lead (22) are formed on substantially a same surface on an outer surface (20b) has: a step of sandwiching a leadframe (21) provided with a notched section (21a) by an upper molding die (61) and a lower molding die (62); a step of transfer-molding a thermosetting resin (23) containing a light-reflecting substance (26), in a molding die (60) sandwiched by the upper molding die (61) and the lower molding die (62) and forming a resin-molded body (24) on the leadframe (21); and a step of cutting the resin-molded body (24) and the leadframe (21) along the notched section (21a).
摘要:
Provided is a simple and low-cost method for manufacturing, in a short time, many light emitting devices wherein adhesiveness between a leadframe and a thermosetting resin composition is high. The method for manufacturing the light emitting device having a resin package (20) wherein the optical reflectivity at a wavelength of 350-800 nm after thermal curing is 70% or more and a resin section (25) and a lead (22) are formed on substantially a same surface on an outer surface (20b) has: a step of sandwiching a leadframe (21) provided with a notched section (21a) by an upper molding die (61) and a lower molding die (62); a step of transfer-molding a thermosetting resin (23) containing a light-reflecting substance (26), in a molding die (60) sandwiched by the upper molding die (61) and the lower molding die (62) and forming a resin-molded body (24) on the leadframe (21); and a step of cutting the resin-molded body (24) and the leadframe (21) along the notched section (21a).
摘要:
An object of the present invention is to provide a light emitting device that shows high adhesion between a sealing member and a package member. A light emitting device 100 of the present invention comprises a package 20 with a recess 60 having a bottom face 20a and a side wall 20b, a light emitting element 10 mounted on the bottom face 20a of the recess 60 of the package 20, and a sealing member 40 filled in the recess 60 of the package 20, with which the light emitting element 10 is coated, wherein the package 20 contains, against the entire monomer component, from 5 to 70% by weight of potassium titanate fibers and/or wollastonite, from 10 to 50% by weight of titanium oxide, and from 15 to 85% by weight of a semiaromatic polyamide containing 20 mol % or more of an aromatic monomer, a part of the side wall 20b of the recess 60 of the package 20 has a thickness of 100 μm or less, and the sealing member 40 is made of silicone.
摘要:
An object of the present invention is to provide a light emitting device that shows high adhesion between a sealing member and a package member. A light emitting device 100 of the present invention comprises a package 20 with a recess 60 having a bottom face 20a and a side wall 20b, a light emitting element 10 mounted on the bottom face 20a of the recess 60 of the package 20, and a sealing member 40 filled in the recess 60 of the package 20, with which the light emitting element 10 is coated, wherein the package 20 contains, against the entire monomer component, from 5 to 70% by weight of potassium titanate fibers and/or wollastonite, from 10 to 50% by weight of titanium oxide, and from 15 to 85% by weight of a semiaromatic polyamide containing 20 mol % or more of an aromatic monomer, a part of the side wall 20b of the recess 60 of the package 20 has a thickness of 100 μm or less, and the sealing member 40 is made of silicone.
摘要:
The present invention provides a method by which the discoloration of methylenebisaniline compounds can be inhibited even when they are stored at high temperatures for many hours. That is, the present invention provides a method for inhibiting the discoloration of methylenebisaniline compounds, characterized by adding a phosphine represented by the following general formula: (H)p—P—(R3)q [chemical formula 2] (wherein R3 is an optionally substituted aryl group or an optionally substituted alkyl group; p is 0, 1 or 2 and q is 1, 2 or 3, with the provisos that the sum of p and q is 3 and that when q is 2 or 3, R3s may be the same or different from each other) to a compound represented by the following general formula: (wherein R1 and R2 are each independently a halogen atom or a C1-C6 alkyl group; a and b are each independently an integer of 0 to 4; m and n are each independently an integer of 1 to 5, with the provisos that the sum of a and m and the sum of b and n are each 5 or less and that when a is 2 or more, R1s may be the same or different from each other and, when b is 2 or more, R2s may be the same or different from each other).
摘要:
A method for inhibiting the discoloration of methylenebisaniline compounds by adding a phosphine of the formula: (H)p—P—(R3)q (wherein R3 is an optionally substituted aryl group or an optionally substituted alkyl group; p is 0, 1 or 2 and q is 1, 2 or 3) to a compound of the formula: (wherein R1 and R2 are each independently a halogen atom or a C1-C6 alkyl group; a and b are each independently an integer of 0 to 4; m and n are each independently an integer of 1 to 5).