WO2004066699A1 - 多層セラミック基板およびその製造方法 - Google Patents
多層セラミック基板およびその製造方法 Download PDFInfo
- Publication number
- WO2004066699A1 WO2004066699A1 PCT/JP2004/000399 JP2004000399W WO2004066699A1 WO 2004066699 A1 WO2004066699 A1 WO 2004066699A1 JP 2004000399 W JP2004000399 W JP 2004000399W WO 2004066699 A1 WO2004066699 A1 WO 2004066699A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fired
- substrate
- block
- firing
- green sheet
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0306—Inorganic insulating substrates, e.g. ceramic, glass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/12—Mountings, e.g. non-detachable insulating substrates
- H01L23/14—Mountings, e.g. non-detachable insulating substrates characterised by the material or its electrical properties
- H01L23/15—Ceramic or glass substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49822—Multilayer substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/01—Dielectrics
- H05K2201/0183—Dielectric layers
- H05K2201/0187—Dielectric layers with regions of different dielectrics in the same layer, e.g. in a printed capacitor for locally changing the dielectric properties
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4626—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials
- H05K3/4629—Manufacturing multilayer circuits by laminating two or more circuit boards characterised by the insulating layers or materials laminating inorganic sheets comprising printed circuits, e.g. green ceramic sheets
Definitions
- the present invention relates to a multilayer ceramic substrate formed by combining a plurality of ceramic materials having different electric and / or physical characteristics from each other, and a method for manufacturing the same.
- the multilayer ceramic substrate is composed of a plurality of ceramic layers, and a wiring conductor is formed between the ceramic layers along the interface between them.
- a multilayer ceramic substrate is obtained by laminating green sheets of a plurality of types of ceramic materials having different electrical and physical characteristics from each other in order to achieve multifunctionality and high performance. It is manufactured by firing the body at the same time. This is because electronic elements that require different dielectric constants, such as capacitors and inductors, are integrated into a multilayer ceramic substrate.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2 ⁇ 01_14444438 discloses a multilayer ceramic in which dielectric ceramic materials having mutually different dielectric constants are laminated. To prevent interdiffusion between layers and shrinkage of the multilayer ceramic substrate, a green sheet for suppressing shrinkage is provided between the layers. Methods have been proposed.
- Patent Document 2 Japanese Patent Application Laid-Open No. 11-163530 discloses that a space is formed inside a laminate of green sheets before firing, and a molded body block before firing is fitted into this space. Then, there is disclosed a technique for simultaneously firing a molded block and a laminate of green sheets.
- the present invention has been made in view of such circumstances, and has as its object to provide a multilayer ceramic substrate in which the thickness of the entire multilayer ceramic substrate is suppressed as much as possible without affecting each other's layers, thereby facilitating element formation.
- a method for manufacturing a multilayer ceramic substrate according to the present invention comprises the steps of: laminating a plurality of first green sheets, which will constitute a first ceramic layer after firing, to form a first pre-fired substrate.
- the first pre-fired substrate on the fitted side and the first pre-fired block on the fitted side each have a green sheet of the same material laminated thereon. There is little occurrence of peeling and cracking between layers.
- the laminate of the first ceramic layer and the laminate of the second ceramic layer, which have different dielectric constants from each other, are located independently in the substrate, and a sufficient thickness can be ensured.
- An electronic component adapted to the above can be configured.
- a capacitor having a relatively large dielectric constant is composed of a capacitor element, and a part having a relatively small dielectric constant (block or substrate) is composed of an inductor element. Is secured. Also, even if the shrinkage of each substrate material is slightly different during firing, the laminating direction of the block is the same as the laminating direction of the substrate, so the shrinking tendency is the same, and the fired block falls off the fired substrate. I will not. In addition, since the respective members are connected by the connection wiring formed on the surface of the substrate, the fired block does not fall off the fired substrate from this point as well.
- no terminal is formed on the side surface of the first pre-fired block, and the terminal is formed on the upper surface and the Z or lower surface of the first pre-fired block.
- No terminal is formed on the side of the block, so there is no need to connect to the board on the side of the block.
- it can be connected to the surface electrode of the substrate via terminals on the upper surface z or the lower surface of the block.
- no terminals were formed on the side of the block, there was no internal conductor layer near the side of the block, and a reaction occurred during firing on the side of the block due to differences in the material of the block and the substrate. There is no problem.
- the recess is a through hole penetrating from the upper surface to the lower surface of the first pre-fired substrate.
- a second pre-fired block different from the first pre-fired block may be fitted into the through hole along with the first pre-fired block.
- the concave portion may be a non-through hole that does not penetrate from the upper surface to the lower surface of the first pre-fired substrate.
- the depth and structure of the recess can be freely designed according to the size and number of elements built in the block. Further, by fitting another block before the second firing into the inside of the ⁇ portion, blocks having different dielectric constants can be built in the same concave portion.
- the first green sheet and the second green sheet are made of a material having a different dielectric constant after firing.
- the first green sheet and the second green sheet may be made of the same material and have different thicknesses.
- a thickness of the first green sheet constituting the first pre-fired substrate is larger than a thickness of the second green sheet.
- the thickness of the first green sheet, in which a device is not formed and a mere wiring layer or the like is formed is large from the viewpoint of reducing the number of laminating steps.
- an internal conductor layer is interposed between the first green sheets and / or between the second green sheets.
- This internal conductor layer becomes a wiring layer, an internal electrode of a device to be manufactured, and the like.
- the first green sheet and the second green sheet have the same degree of press shrinkage and firing shrinkage.
- the first block before firing When the embedded first pre-fired substrate is pressed or fired, peeling and cracking between the block and the substrate can be more effectively suppressed.
- the first pre-fired substrate is fired, and a terminal formed on the surface of the fired substrate It is preferable to connect the terminal formed on the surface of the baked block by connection wiring.
- the first pre-fired block is fitted into a recess of the first pre-fired substrate, a terminal formed on the surface of the first pre-fired block, and a terminal formed on the surface of the first pre-fired substrate
- the first pre-fired substrate may be baked after connecting the terminal with the connected terminal by a connection wiring.
- the multilayer ceramic substrate of the present invention is manufactured by any of the above manufacturing methods.
- the multilayer ceramic substrate according to the present invention may be used alone as a product, or other electronic components may be mounted on the multilayer ceramic substrate.
- FIG. 1 is a schematic cross-sectional view showing a manufacturing process of a multilayer ceramic substrate according to one embodiment of the present invention
- FIG. 2 is a schematic cross-sectional view showing a post-process of FIG. 1,
- FIG. 3 is a schematic cross-sectional view of the first pre-fired block shown in FIG. 1,
- FIG. 4 is a plan view of the first pre-firing block shown in FIG. 3,
- FIG. 5 is a plan view showing a state in which a circuit pattern is printed on the surface of the fired substrate, and the terminals of the block and the terminals of the substrate are connected in a predetermined pattern.
- 6A and 6B are schematic sectional views of a multilayer ceramic substrate according to another embodiment of the present invention.
- a first pre-fired substrate 4 is prepared.
- the first pre-fired substrate 4 is manufactured by laminating a plurality of first green sheets, which will constitute the first ceramic layer after firing, in the thickness direction A, and then temporarily press-bonding them in the lamination direction A.
- An internal conductor layer is formed between the first green sheets as necessary.
- the dielectric paste and the internal conductor paste may be laminated and printed on a substrate such as polyethylene terephthalate.
- a green sheet may be formed using a dielectric paste, an internal conductor paste may be printed thereon, and then these may be laminated.
- the thickness of the first pre-fired substrate 4 is not particularly limited, but is, for example, about 0.4 mm to: L.sub.5.
- the shape of the first pre-fired substrate 4 is not particularly limited, but is a 25 mm ⁇ 25 mm square shape in this embodiment.
- the pressure during the temporary compression is not particularly limited. The pressure is preferably about 3 to 8 MPa, and the heating temperature at that time is about 50 to 100 ° C.
- each first green sheet is determined by the use of elements, wiring, and the like built in the first substrate 40 shown in FIG. 2 obtained by firing the first pre-fired substrate 4, and is generally determined. , 20-245 / ni.
- the thickness of the first green sheet is preferably reduced.
- the thickness of the first green sheet is large.
- the number of the first green sheets laminated is not particularly limited, but is about 4 to 50 sheets.
- the first green sheet is made from a dielectric paste.
- the dielectric paste is An organic paint obtained by kneading a dielectric material and an organic vehicle may be used, or an aqueous paint may be used.
- the dielectric material a material constituting a main component and a subcomponent according to the composition of the dielectric ceramic composition is used.
- the form of the raw materials is not particularly limited, and oxides constituting the main components and sub-components or compounds which become oxidized by firing are used. Powders obtained by a synthesis method or a solid phase method may be used.
- Examples of the compound that becomes an oxide upon firing include carbonates, nitrates, oxalates, and organometallic compounds.
- an oxide and a compound that becomes an oxide by firing may be used in combination.
- the content of each compound in the dielectric material may be determined so that the composition of the dielectric ceramic composition described above after firing is obtained.
- the organic vehicle is obtained by dissolving a pinda in an organic solvent
- the pinda used in the organic vehicle is not particularly limited, and may be appropriately selected from various types of ordinary pindas such as ethylcellulose and polyvinylbutyral.
- the organic solvent used at this time is not particularly limited, and may be appropriately selected from organic solvents such as terpineol, butyl carbitol, acetone, and toluene according to a method to be used such as a printing method and a sheet method.
- the water-based paint is obtained by dissolving a water-soluble binder and a dispersing agent in water.
- the water-based binder is not particularly limited, and may be a polybutyl alcohol, a cellulose, a water-soluble acryl resin, an emulsion, or the like. What is necessary is just to select suitably.
- the internal conductor paste is prepared by kneading the above-mentioned organic vehicle with the above-mentioned conductive materials made of various conductive metals and alloys, or various oxides, organometallic compounds, resinates, etc. which become the above-mentioned conductive materials after firing. Is done.
- the content of the organic vehicle in each of the above-mentioned pastes is not particularly limited, and may be a usual content, for example, about 1 to 5% by weight of a binder and about 10 to 50% by weight of a solvent.
- Each paste may contain additives selected from various dispersants, plasticizers, dielectrics, insulators, and the like, if necessary.
- a second pre-fired substrate is prepared.
- the size and thickness of the second pre-fired substrate are the same as those of the first pre-fired substrate 4.
- the method of making the second pre-fired substrate is the same as that of the first pre-fired substrate 4.
- the dielectric material or the thickness of the second green sheet constituting the second pre-fired substrate is different from that of the first green sheet constituting the first pre-fired substrate 4.
- an element such as an inductor element, a capacitor element, an LC composite circuit element, a filter circuit element, and a pattern for forming wiring between the elements, and an internal conductor layer is formed. I have.
- the dielectric material contained in the dielectric paste constituting the second green sheet can be sintered at the same temperature as the dielectric material contained in the dielectric paste constituting the first green sheet. It is preferable that they have the same degree of press shrinkage and firing shrinkage. Examples of combinations that satisfy these characteristics include the following combinations of material compositions.
- the composition of the dielectric material of the first green sheet an aluminum oxide-based dielectric material (Si0 2 is 26.45 mass 0 /., B 2 0 3 is 1.76 mass 0/0, A1 2 0 3 is 55 (37% by mass, 0.86% by mass of MgO, 1.59% by mass of CaO, 13.97% by mass of SrO),
- the composition of the dielectric material of the second green sheet is as follows: Preferably, it is a composition. That is, aluminum oxide titanium monoxide based dielectric material (Si0 2 forces S32. 62 wt. / 0, B 2 0 3. 2. 18 mass%, [alpha] 1 2 0 3 is 25.35 wt%, M g 0 is 1 ..
- Strontium feldspar - ⁇ silica-based dielectric material (Si0 2 force 6.60 wt%, B 2 0 3 is 12.71 wt 0/0, A1 2 0 3 is 9.20 mass ./., Sb 2 0 3 5.33 mass%, CaO is 1.61 wt%, SrO is 3.12 wt%, ZnO is 0.8 1 mass ./., MgO is 0.56 mass%), aluminum oxide one ⁇ silica-based dielectric material (BaO 2 4.59 wt%, A1 2 0 3 is 19.05 wt. / 0, Si0 2 is 53.94 wt%, B 2 0 3 is 2.42 mass.
- oxide neodymium - titanium oxide dielectric material (BaO is 20.21 mass%, Nd 2 0 3 is 36.81 wt%, Ti0 2 is 37.73 wt%, B 2 0 3 is 1.42 mass 0/0, (CuO is 0.95% by mass and ZnO is 1.90% by mass).
- the first pre-fired block 6 is not particularly limited, but has a size of, for example, 1 to 10 °, and has the same thickness as the first pre-fired substrate 4.
- Terminals 8 are formed on the upper surface Z or the rear surface of the first pre-fired block 6, as shown in FIGS.
- the terminal 8 is formed, for example, by printing an external terminal paste similar to the internal conductor paste.
- the terminal 8 may be formed at the stage of the second pre-fired substrate, or may be formed at the stage of block.
- terminals 36 are also formed on the upper surface and / or lower surface of the first pre-fired substrate 4. These terminals 36 are connected to a predetermined circuit pattern by connection wiring 38 later.
- a through hole (recess) 10 penetrating the front and back surfaces is formed in the first pre-fired substrate 4 by, for example, punching. .
- the size of the through-holes 10 is slightly larger than the size of the first pre-fired block 6, and as shown in FIG. It is fitted.
- the front and back surfaces of each first pre-fired block 6 are substantially flush with the front and back surfaces of the first pre-fired substrate 4.
- the first pre-firing block 6 includes a plurality of green sheets 3. 0 is laminated in the thickness direction A ′, and between the layers of the green sheet 30, internal electrode layers 32 are interposed in a predetermined pattern, and these internal electrode layers 32 and terminals 8 They are connected by via holes 34, etc.
- the stacking direction A and the force S of the green sheets 30 in the first pre-sintering block 6 are the same as the stacking direction A of the green sheets in the first pre-sintering substrate 4 shown in FIG.
- the first pre-firing block 6 is fitted into the through hole 10.
- the first pre-fired substrate 4 into which the first pre-fired block 6 has been fitted is fully pressed in the laminating direction.
- the pressure is not particularly limited, but is preferably about 40 to 100 MPa, and the heating temperature is about 35 to 80 ° C.
- the first pre-sintering substrate 4 is subjected to a binder removal process and a sintering process together with the first pre-sintering block 6, and a multilayer ceramic substrate 2 composed of the post-sintered first substrate 40 and the block 60 shown in FIG. can get.
- the firing temperature is determined by the material of the green sheet and is not particularly limited, but is generally 850 to 100 ° C.
- the firing atmosphere may be appropriately determined according to the type of conductive material in the inner conductor paste.
- a base metal such as Ni or Ni alloy is used as the conductive material
- a reducing atmosphere may be used.
- the oxygen partial pressure in the firing Kiri ⁇ gas preferably with 1 0- 1 0 ⁇ 1 0- 3 P a, more preferably 1 0 one 7
- a circuit pattern is printed on the surface of the first substrate 40, and the terminals 8 of the block 60 and the terminals 36 of the first substrate 40 are connected to each other by the connection wiring 38. Connect to the pattern.
- the circuit pattern may be printed before the first substrate 40 is fired.
- the second (1) The pre-fired substrate 4 and the first pre-fired block 6 on the side to be fitted each have a green sheet of the same material laminated thereon, so that during firing, there is little occurrence of peeling or cracking between layers. Since the laminate of the first substrate 40 and the laminate of the block 60 having mutually different dielectric constants are located independently in the substrate and have a sufficient thickness, the respective dielectric constants are different. It is possible to configure an electronic component that matches the rate.
- a part having a relatively large dielectric constant (block 60 or first substrate 40) forms a capacitor element
- a part having a relatively small dielectric constant (block 60 or first substrate 40) has Design flexibility is ensured, such as by configuring inductor elements.
- the laminating direction A 'of the first pre-firing block 6 is the same as the laminating direction A of the first pre-firing substrate 4, so that the contraction tendency is the same. Yes, the fired block 60 does not fall off the fired first substrate 40.
- the respective members are connected by the connection wiring 38 formed on the surface of the first substrate 40, the block 60 after firing drops from the first substrate 40 after firing also from this point.
- non-through holes 10a having different depths that do not penetrate the front and back surfaces of the substrate are formed on the surface of the first pre-fired substrate 4a, and the non-through holes 10a are formed there.
- a first pre-firing block 6a according to the size of a may be fitted.
- the surface of each first pre-fired block 6a is substantially the same as the surface of the first pre-fired substrate 4a.
- Other steps are the same as those of the embodiment shown in FIGS.
- a plurality of through holes 10 are formed in the first pre-fired substrate 4b, and at least one of the through holes 10 is provided with the first pre-fired block 6b.
- another block 20 before the second firing may be fitted.
- the second pre-fired block 20 is, for example, a block having electric characteristics such as a dielectric constant different from that of the first pre-fired block 6b, or a thickness of a Darine sheet constituting the first pre-fired block 6b. This is a block composed of green sheets with different thicknesses. Other steps are the same as those of the embodiment shown in FIGS.
- blocks 6 b and 20 having electric characteristics such as a dielectric constant different from that of the first pre-fired substrate 4 are provided in the substrate while having the same operation and effect as the embodiment shown in FIGS. 1 to 5. Since it can be built-in, the degree of design freedom is further increased, contributing to the downsizing of the board.
- the pre-fired substrates 4, 4a, 4b in which these blocks 6, 6a, 6b, 20 are embedded are laminated with other pre-fired substrates without firing as they are. Then, it may be fired.
- the present invention it is possible to provide a multilayer ceramic substrate in which the thickness of the entire multilayer ceramic substrate is suppressed as much as possible without affecting each other's layers, thereby facilitating element formation.
- the laminating direction of the green sheets in the block to be fitted is the same as the laminating direction of the green sheets in the substrate in which the block is fitted, the non-shrinkable sheet-like support during firing is used. It is possible to integrate the block without falling off the substrate after firing without the need for sintering.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04703471A EP1589799A1 (en) | 2003-01-21 | 2004-01-20 | Multi-layer ceramic substrate and method for manufacture thereof |
US10/542,846 US20060127568A1 (en) | 2003-01-21 | 2004-01-20 | Multi-layer ceramic substrate and method for manufacture thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-12384 | 2003-01-21 | ||
JP2003012384A JP2004265898A (ja) | 2003-01-21 | 2003-01-21 | 多層セラミック基板およびその製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004066699A1 true WO2004066699A1 (ja) | 2004-08-05 |
Family
ID=32767328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/000399 WO2004066699A1 (ja) | 2003-01-21 | 2004-01-20 | 多層セラミック基板およびその製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060127568A1 (ja) |
EP (1) | EP1589799A1 (ja) |
JP (1) | JP2004265898A (ja) |
KR (1) | KR100724228B1 (ja) |
CN (1) | CN1739324A (ja) |
TW (1) | TWI230033B (ja) |
WO (1) | WO2004066699A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101593707B (zh) * | 2009-07-03 | 2010-10-27 | 无锡友达电子有限公司 | 用于大功率集成电路的封装方法 |
RU2639720C2 (ru) * | 2016-06-14 | 2017-12-22 | Федеральное государственное унитарное предприятие "Научно-производственный центр автоматики и приборостроения имени академика Н.А. Пилюгина" (ФГУП "НПЦАП") | Печатная плата с внутренним монтажом элементов и способ ее изготовления |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03191596A (ja) * | 1989-12-21 | 1991-08-21 | Nippon Cement Co Ltd | コンデンサ内蔵多層セラミック基板の製造方法 |
JPH05174679A (ja) * | 1991-12-24 | 1993-07-13 | Nec Kansai Ltd | 可溶合金型温度ヒューズ |
US5239744A (en) * | 1992-01-09 | 1993-08-31 | At&T Bell Laboratories | Method for making multilayer magnetic components |
JP2002164660A (ja) * | 2000-11-22 | 2002-06-07 | Tdk Corp | 多層基板と電子部品と多層基板の製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05174649A (ja) * | 1991-12-24 | 1993-07-13 | Tdk Corp | 異質材部を有するセラミックグリーンシート及びその製造方法 |
US5661882A (en) * | 1995-06-30 | 1997-09-02 | Ferro Corporation | Method of integrating electronic components into electronic circuit structures made using LTCC tape |
US6470545B1 (en) * | 1999-09-15 | 2002-10-29 | National Semiconductor Corporation | Method of making an embedded green multi-layer ceramic chip capacitor in a low-temperature co-fired ceramic (LTCC) substrate |
-
2003
- 2003-01-21 JP JP2003012384A patent/JP2004265898A/ja active Pending
-
2004
- 2004-01-20 TW TW093101493A patent/TWI230033B/zh not_active IP Right Cessation
- 2004-01-20 CN CNA2004800024814A patent/CN1739324A/zh active Pending
- 2004-01-20 WO PCT/JP2004/000399 patent/WO2004066699A1/ja active Application Filing
- 2004-01-20 US US10/542,846 patent/US20060127568A1/en not_active Abandoned
- 2004-01-20 EP EP04703471A patent/EP1589799A1/en not_active Withdrawn
- 2004-01-20 KR KR1020057013448A patent/KR100724228B1/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03191596A (ja) * | 1989-12-21 | 1991-08-21 | Nippon Cement Co Ltd | コンデンサ内蔵多層セラミック基板の製造方法 |
JPH05174679A (ja) * | 1991-12-24 | 1993-07-13 | Nec Kansai Ltd | 可溶合金型温度ヒューズ |
US5239744A (en) * | 1992-01-09 | 1993-08-31 | At&T Bell Laboratories | Method for making multilayer magnetic components |
JP2002164660A (ja) * | 2000-11-22 | 2002-06-07 | Tdk Corp | 多層基板と電子部品と多層基板の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1589799A1 (en) | 2005-10-26 |
JP2004265898A (ja) | 2004-09-24 |
TW200417305A (en) | 2004-09-01 |
CN1739324A (zh) | 2006-02-22 |
US20060127568A1 (en) | 2006-06-15 |
KR20050094040A (ko) | 2005-09-26 |
KR100724228B1 (ko) | 2007-05-31 |
TWI230033B (en) | 2005-03-21 |
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