JP2013131621A - Multiple patterning wiring board, wiring board, and electronic device - Google Patents

Multiple patterning wiring board, wiring board, and electronic device Download PDF

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JP2013131621A
JP2013131621A JP2011279947A JP2011279947A JP2013131621A JP 2013131621 A JP2013131621 A JP 2013131621A JP 2011279947 A JP2011279947 A JP 2011279947A JP 2011279947 A JP2011279947 A JP 2011279947A JP 2013131621 A JP2013131621 A JP 2013131621A
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wiring board
glass
board
mother
wiring
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JP5897897B2 (en
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Masanori Anura
雅徳 案浦
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Kyocera Corp
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Kyocera Corp
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/47Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481Disposition
    • H01L2224/48151Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48225Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
    • H01L2224/48227Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item

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Abstract

PROBLEM TO BE SOLVED: To provide a multiple patterning wiring board which can be divided into individual pieces of wiring board easily while reducing the possibility of being cracked by mistake, and to provide individual pieces of wiring board and an electronic device.SOLUTION: A plurality of wiring board regions 2 are arranged on a mother board 1 consisting of a ceramic sintered compact, split grooves 3 are provided along the boundary of the wiring board regions 2 on the upper surface of the mother board 1, and a glass 8 is provided in the split grooves 3 by simultaneous calcination with the ceramic sintered compact. In such a multiple patterning wiring board 9, mistaken cracking of the mother board 1 by the glass 8 is suppressed. The mother board 1 can be split easily since the glass 8 is fractured by the stress when the mother board is split.

Description

本発明は、複数の配線基板領域を有する多数個取り配線基板、および個片の配線基板、ならびに配線基板に電子部品が搭載されてなる電子装置に関する。   The present invention relates to a multi-piece wiring board having a plurality of wiring board regions, an individual wiring board, and an electronic device in which an electronic component is mounted on the wiring board.

半導体素子や受動素子等の電子部品は、セラミック配線基板等の配線基板に搭載され、樹脂等で封止されて用いられている。セラミック配線基板は、例えばセラミック焼結体からなる絶縁基板の表面および内部に配線導体が設けられたものである。配線基板は、生産性等を考慮して、それぞれが配線基板となる複数配線基板領域が母基板に配列されてなる多数個取り配線基板の形態で製作されている。多数個取り配線基板が配線基板領域毎に分割されて、個片の配線基板が製作される。   Electronic parts such as semiconductor elements and passive elements are mounted on a wiring board such as a ceramic wiring board and sealed and used with a resin or the like. A ceramic wiring board is provided with a wiring conductor on the surface and inside of an insulating substrate made of, for example, a ceramic sintered body. In consideration of productivity and the like, the wiring board is manufactured in the form of a multi-piece wiring board in which a plurality of wiring board regions each serving as a wiring board are arranged on a mother board. A multi-piece wiring board is divided for each wiring board region, and a piece of wiring board is manufactured.

配線基板に搭載された電子部品が樹脂等で封止されたものが電子装置であり、電子装置が、各種の電子機器に実装される。電子部品の樹脂等による封止は、多数個取り配線基板の状態で行なわれる場合もある。すなわち、多数個取り配線基板の配線基板領域にそれぞれ電子部品を搭載した後に、これらの電子部品を樹脂等で一括して被覆して封止する。その後、各配線基板領域を個片に分割する場合もある。   An electronic device in which an electronic component mounted on a wiring board is sealed with a resin or the like is an electronic device, and the electronic device is mounted on various electronic devices. Sealing of electronic parts with resin or the like may be performed in the state of a multi-piece wiring board. That is, after electronic components are respectively mounted on the wiring board region of the multi-cavity wiring board, these electronic components are collectively covered with resin or the like and sealed. Thereafter, each wiring board region may be divided into individual pieces.

多数個取り配線基板の分割方法としては、ダイシング加工または、あらかじめ母基板の主面に分割溝を設けておいて、分割溝部分で母基板を破断させる(ブレークする)方法がある。   As a method for dividing the multi-piece wiring substrate, there are dicing processing or a method in which a dividing groove is provided in advance on the main surface of the mother substrate and the mother substrate is broken (breaked) at the dividing groove portion.

特開2004−335518号公報JP 2004-335518 A 特開2006−100688号公報Japanese Unexamined Patent Publication No. 2006-100688 特開2006−303366号公報JP 2006-303366 A

しかしながら、上記従来技術においては、以下のような問題点があった。   However, the above prior art has the following problems.

すなわち、ダイシング加工によって母基板が分割される場合には、母基板がセラミック焼結体からなるとき、母基板の硬度が高いため、分割に際して配線基板領域に大きな応力が加わりやすい。そのため、個片の配線基板においてカケ等が発生しやすい可能性がある。また、ダイシング加工の作業性を高めることが難しい傾向がある。   That is, when the mother board is divided by dicing, when the mother board is made of a ceramic sintered body, the mother board has a high hardness, so that a large stress is easily applied to the wiring board region during the division. For this reason, there is a possibility that chipping or the like is likely to occur in the individual wiring board. Moreover, it tends to be difficult to improve the workability of dicing.

また、分割溝が設けられた部分で母基板が分割される場合には、分割溝部分における母基板の機械的強度が低いため、例えば樹脂による被覆作業等の取り扱い時に、誤って母基板が割れてしまう可能性があった。特に、近年、配線基板、つまりは母基板の薄型化が進んでいるため、このような問題点が顕著になってきている。   In addition, when the mother board is divided at the part where the dividing groove is provided, the mother board is broken at the time of handling such as resin coating work because the mechanical strength of the mother board at the dividing groove part is low. There was a possibility. In particular, since the wiring board, that is, the mother board has been made thinner in recent years, such a problem has become remarkable.

本発明は、このような従来の問題に鑑みて完成されたものであり、その目的は、個片の配線基板への分割が容易であるとともに、誤って割れるような可能性が低減された多数個取り配線基板、および個片の配線基板、ならびに電子装置を提供することにある。   The present invention has been completed in view of such a conventional problem, and its object is to easily divide an individual piece into a wiring board and to reduce the possibility of erroneous breakage. An object of the present invention is to provide a single wiring board, a single wiring board, and an electronic device.

本発明の一つの態様の多数個取り配線基板は、母基板に複数の配線基板領域が配列されてなる多数個取り配線基板であって、前記母基板がセラミック焼結体からなるとともに、該母基板の上面に、前記配線基板領域の境界に沿って分割溝が設けられており、該分割溝内に、前記セラミック焼結体との同時焼成によって設けられたガラスが充填されていることを特徴とする。   A multi-cavity wiring board according to one aspect of the present invention is a multi-cavity wiring board in which a plurality of wiring board regions are arranged on a mother board, the mother board being made of a ceramic sintered body, and the mother board. A dividing groove is provided on the upper surface of the substrate along a boundary of the wiring board region, and the dividing groove is filled with glass provided by simultaneous firing with the ceramic sintered body. And

本発明の一つの態様の配線基板は、上記構成の多数個取り配線基板が前記配線基板領域毎に分割されて形成された配線基板であって、上面と側面とを有するとともに、該側面の上端部分が下方から上方に向かって内側に傾斜している絶縁基板と、該絶縁基板の前記側面の前記傾斜した部分に設けられたガラスとを備えていることを特徴とする。   A wiring board according to one aspect of the present invention is a wiring board formed by dividing the multi-piece wiring board having the above-described configuration into each wiring board region, and has an upper surface and a side surface, and an upper end of the side surface. An insulating substrate having a portion inclined inward from below to above and glass provided on the inclined portion of the side surface of the insulating substrate.

本発明の一つの態様の電子装置は、上記構成の配線基板と、該配線基板の前記絶縁基板の前記上面に搭載された電子部品と、前記電子部品を被覆する樹脂材料とを備えていることを特徴とする。   An electronic device according to an aspect of the present invention includes the wiring board having the above-described configuration, an electronic component mounted on the upper surface of the insulating substrate of the wiring board, and a resin material that covers the electronic component. It is characterized by.

本発明の一つの態様の多数個取り配線基板によれば、セラミック焼結体からなる母基板に設けられた分割溝内に、セラミック焼結体との同時焼成によって設けられたガラスが充填されていることから、分割溝が形成された部分における母基板の機械的な強度が補強される。そのため、例えば樹脂による封止等の取り扱い時に、誤って母基板が割れるようなことは抑制される。また、分割溝内に設けられているガラス自体の機械的な強度が母基板に比べて小さい。そのため、母基板を破断させるような大きな応力、つまり個片の配線基板への分割のための応力が加えられたときには、ガラス自体が破断し、母基板が容易に分割される。したがって、誤って割れるような可能性が低減されているとともに、個片の配線基板への分割が容易な多数個取り配線基板を提供することができる。   According to the multi-cavity wiring board of one aspect of the present invention, the glass provided by co-firing with the ceramic sintered body is filled in the divided grooves provided in the mother substrate made of the ceramic sintered body. Therefore, the mechanical strength of the mother board in the portion where the dividing grooves are formed is reinforced. Therefore, it is possible to prevent the mother substrate from being accidentally cracked during handling such as sealing with resin. Further, the mechanical strength of the glass itself provided in the dividing groove is smaller than that of the mother substrate. Therefore, when a large stress that breaks the mother board, that is, a stress for dividing the piece into wiring boards, is applied, the glass itself breaks and the mother board is easily divided. Accordingly, it is possible to provide a multi-piece wiring board in which the possibility of accidental cracking is reduced and the individual pieces can be easily divided into wiring boards.

本発明の一つの態様の配線基板によれば、上記構成の多数個取り配線基板が個片に分割されて製作されたものであるため、絶縁基板のカケ等の不具合が生じる可能性が低減されている。また、絶縁基板の側面の上端部にガラスが残るため、このガラスによって、絶縁基板の側面の上端部と上面の外周部との間の角部分が保護されて、カケ等が抑制され得る。したがって、信頼性が高い電子装置を製作することが容易な配線基板を提供することができる。   According to the wiring board of one aspect of the present invention, since the multi-piece wiring board having the above configuration is manufactured by being divided into pieces, the possibility of occurrence of defects such as chipping of the insulating board is reduced. ing. Further, since glass remains on the upper end portion of the side surface of the insulating substrate, the glass protects the corner portion between the upper end portion of the side surface of the insulating substrate and the outer peripheral portion of the upper surface, and can suppress chipping and the like. Therefore, it is possible to provide a wiring board that can easily manufacture a highly reliable electronic device.

また、本発明の一つの態様の電子装置によれば、上記構成の配線基板に電子部品が搭載されているとともに樹脂材料によって封止されていることから、信頼性が高い電子装置を提供することができる。   Moreover, according to the electronic device of one aspect of the present invention, an electronic device is mounted on the wiring board having the above-described configuration and is sealed with a resin material. Therefore, an electronic device with high reliability is provided. Can do.

(a)は本発明の実施形態の多数個取り配線基板を示す平面図であり、(b)は(a)のA−A線における断面図である。(A) is a top view which shows the multi-piece wiring board of embodiment of this invention, (b) is sectional drawing in the AA of (a). 図1に示す多数個取り配線基板の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of the multi-cavity wiring board shown in FIG. 本発明の実施形態の配線基板を示す断面図である。It is sectional drawing which shows the wiring board of embodiment of this invention. 本発明の実施形態の電子装置を示す断面図である。It is sectional drawing which shows the electronic device of embodiment of this invention. 図4に示す電子装置の要部を拡大して示す断面図である。It is sectional drawing which expands and shows the principal part of the electronic device shown in FIG. (a)〜(c)はそれぞれ、本発明の実施形態の多数個取り配線基板の変形例における要部を示す断面図である。(A)-(c) is sectional drawing which shows the principal part in the modification of the multi-cavity wiring board of embodiment of this invention, respectively.

本発明の実施形態における多数個取り配線基板、配線基板および電子装置について、図面を参照して説明する。なお、以下の説明における上下方向は、多数個取り配線基板、配
線基板および電子装置が実際に使用される際の上下方向とは必ずしも一致しない。例えば、絶縁基板の上面が下向きに、ひっくり返されて使用(実装等)される場合もある。
A multi-piece wiring board, a wiring board, and an electronic device according to an embodiment of the present invention will be described with reference to the drawings. Note that the vertical direction in the following description does not necessarily match the vertical direction when the multi-cavity wiring board, the wiring board, and the electronic device are actually used. For example, the upper surface of the insulating substrate may be turned upside down and used (mounted).

図1(a)は本発明の実施形態における多数個取り配線基板を示す平面図であり、図1(b)は図1(a)のA−A線における断面図である。図2は、図1に示す多数個取り配線基板の要部を拡大して示す断面図である。図3は、本発明の実施形態の配線基板の断面図である。母基板1に複数の配線基板領域2が配列され、配線基板領域2の境界に沿って分割溝3が設けられて、多数個取り配線基板9が基本的に形成されている。例えば図1に示す多数個取り配線基板9が個片に分割されたものが配線基板10になっている。また、母基板1が分割されたものが、配線基板10の絶縁基板11になっている。   FIG. 1A is a plan view showing a multi-piece wiring board in an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line AA of FIG. FIG. 2 is an enlarged cross-sectional view showing a main part of the multi-cavity wiring board shown in FIG. FIG. 3 is a cross-sectional view of the wiring board according to the embodiment of the present invention. A plurality of wiring board regions 2 are arranged on the mother board 1, and a dividing groove 3 is provided along the boundary of the wiring board area 2, so that a multi-piece wiring board 9 is basically formed. For example, the wiring board 10 is obtained by dividing the multi-piece wiring board 9 shown in FIG. Further, what is obtained by dividing the mother substrate 1 is an insulating substrate 11 of the wiring substrate 10.

母基板1は、例えば平面視で長方形状または正方形状等の四角形の板状であり、それぞれが個片の配線基板10となる複数の配線基板領域2が配列されている。図1に示す例では、正方形状の複数の配線基板領域2が母基板1に縦横の並びに配列されている。配線基板領域2の配列の形態は、一列であっても構わず、千鳥状(縦または横に隣り合うもの同士が互いにずれ合っているような配置)であっても構わない。   The mother board 1 has, for example, a rectangular plate shape such as a rectangular shape or a square shape in a plan view, and a plurality of wiring board regions 2 each serving as a single wiring board 10 are arranged. In the example shown in FIG. 1, a plurality of square-shaped wiring board regions 2 are arranged vertically and horizontally on a mother board 1. The form of the arrangement of the wiring board regions 2 may be a single row, or may be a staggered pattern (arrangement in which vertically or horizontally adjacent ones are offset from each other).

母基板1は、ガラスセラミック焼結体,酸化アルミニウム質焼結体またはムライト質焼結体等のセラミック焼結体によって形成されている。母基板1を形成するガラスセラミック焼結体は、例えば、ホウケイ酸系ガラスやリチウムケイ酸系ガラス等のガラス成分と酸化アルミニウムや酸化カルシウム等のセラミック成分とを主成分とするガラスセラミック焼結体である。   The mother substrate 1 is formed of a ceramic sintered body such as a glass ceramic sintered body, an aluminum oxide sintered body, or a mullite sintered body. The glass ceramic sintered body forming the mother substrate 1 is, for example, a glass ceramic sintered body mainly composed of a glass component such as borosilicate glass or lithium silicate glass and a ceramic component such as aluminum oxide or calcium oxide. It is.

母基板1は、例えば上記ガラス成分の粉末とセラミック成分の粉末とを主成分とする原料粉末を適当な有機溶剤およびバインダとともに混練してスラリーを作製し、このスラリーをドクターブレード法やリップコータ法等の成形方法でシート状に成形して作製した複数のセラミックグリーンシートを積層し、その後焼成することによって作製することができる。   The mother substrate 1 is prepared by, for example, kneading raw material powders mainly composed of the glass component powder and the ceramic component powder together with an appropriate organic solvent and a binder, and using the slurry as a doctor blade method, a lip coater method, or the like. A plurality of ceramic green sheets formed by forming into a sheet shape by the forming method described above can be laminated and then fired.

上記セラミック焼結体のガラス成分は、例えば、SiOを20〜60質量%と、Alを10〜25質量%と、MgOを8〜35質量%と、BaOを10〜20質量%とを含み、さらにB,Y,CaO,SrO,NaO,SnO,P,ZrOおよびLiOから選ばれる少なくとも1種を0〜20質量%を含む。 The glass component of the ceramic sintered body is, for example, 20 to 60% by mass of SiO 2 , 10 to 25% by mass of Al 2 O 3 , 8 to 35% by mass of MgO, and 10 to 20% by mass of BaO. And at least one selected from B 2 O 3 , Y 2 O 3 , CaO, SrO, Na 2 O, SnO 2 , P 2 O 5 , ZrO 2 and Li 2 O in an amount of 0 to 20% by mass. Including.

分割溝3は、多数個取り配線基板9の各配線基板領域2を個片の配線基板10に分割するためのものである。そのため、分割溝3は、配線基板領域2の境界に沿って設けられている。配線基板領域2の境界とは、隣り合う配線基板領域2同士の境界、または配線基板領域2と後述するダミー領域4との境界である。   The dividing groove 3 is for dividing each wiring board region 2 of the multi-piece wiring board 9 into individual wiring boards 10. Therefore, the dividing groove 3 is provided along the boundary of the wiring board region 2. The boundary between the wiring board regions 2 is a boundary between adjacent wiring board regions 2 or a boundary between the wiring substrate region 2 and a dummy region 4 described later.

分割溝3が形成された部分において母基板1に曲げ応力等の応力を加えれば、分割溝3の底部から母基板1の下面にかけて亀裂が生じ、母基板1が厚み方向に破断する。これにより、多数個取り配線基板9が個片の配線基板10に分割される。   If a stress such as a bending stress is applied to the mother substrate 1 at the portion where the dividing groove 3 is formed, a crack is generated from the bottom of the dividing groove 3 to the lower surface of the mother substrate 1, and the mother substrate 1 is broken in the thickness direction. As a result, the multi-piece wiring board 9 is divided into individual wiring boards 10.

分割溝3は、上記のように底部に応力が集中しやすいように、縦断面がV字状になっている。分割溝3の側面は、図2に示したような直線状でなく、途中で傾斜の角度が変わっているものであっても構わず、湾曲していても構わない。   As described above, the dividing groove 3 has a V-shaped longitudinal section so that stress is easily concentrated on the bottom. The side surface of the dividing groove 3 may not be linear as shown in FIG. 2, and the angle of inclination may be changed midway or may be curved.

この実施の形態の例において、例えば図1に示すように、母基板1は、外周部分に平面視で四角枠状のダミー領域4を有している。ダミー領域4は、例えば多数個取り配線基板9の取り扱性の向上や、後述する配線導体の表面に電解めっき法でめっき層が被着される
ときの、めっき用接続導体(図示せず)を配置するスペース確保等のための部位である。
In the example of this embodiment, for example, as shown in FIG. 1, the mother board 1 has a rectangular frame-shaped dummy region 4 in a plan view on the outer peripheral portion. For example, the dummy region 4 is provided with a plating connection conductor (not shown) when improving the handleability of the multi-piece wiring substrate 9 or when a plating layer is deposited on the surface of the wiring conductor to be described later by electrolytic plating. This is a part for securing a space for arranging the.

多数個取り配線基板9の各配線基板領域2には、配線導体5が設けられている。配線導体5は、例えば、配線基板領域2または個片の配線基板10に搭載される電子部品(図1〜図3では図示せず)と電気的に接続される端子として機能する。また、配線導体5は、上記電子部品を外部電気回路(図示せず)に電気的に接続するための導電路として機能する。   A wiring conductor 5 is provided in each wiring board region 2 of the multi-cavity wiring board 9. For example, the wiring conductor 5 functions as a terminal electrically connected to an electronic component (not shown in FIGS. 1 to 3) mounted on the wiring board region 2 or the individual wiring board 10. The wiring conductor 5 functions as a conductive path for electrically connecting the electronic component to an external electric circuit (not shown).

配線導体5は、例えば銅や銀,パラジウム,金,白金,タングステン,モリブデン,マンガン等の金属材料によって設けられている。配線導体5は、例えば銅からなる場合であれば、銅の粉末を有機溶剤およびバインダとともに混練して作製した金属ペーストを、母基板1となるセラミックグリーンシートの表面にスクリーン印刷法等の方法で印刷し、その後焼成することによって設けることができる。   The wiring conductor 5 is provided by a metal material such as copper, silver, palladium, gold, platinum, tungsten, molybdenum, manganese, or the like. If the wiring conductor 5 is made of, for example, copper, a metal paste prepared by kneading copper powder together with an organic solvent and a binder is applied to the surface of the ceramic green sheet serving as the mother substrate 1 by a method such as screen printing. It can be provided by printing and subsequent firing.

なお、配線導体5は、母基板1の厚み方向の少なくとも一部を貫通する貫通導体の部分を含んでいてもよい。配線導体5のうち貫通導体の部分は、母基板1となるセラミックグリーンシートを厚み方向に打ち抜いて貫通孔を設け、この貫通孔内に上記金属ペーストを充填して焼成することによって設けることができる。   The wiring conductor 5 may include a through conductor portion that penetrates at least a part of the mother substrate 1 in the thickness direction. The through conductor portion of the wiring conductor 5 can be provided by punching a ceramic green sheet serving as the mother substrate 1 in the thickness direction to provide a through hole, filling the through hole with the metal paste, and firing. .

図4は、本発明の実施形態の電子装置を示す断面図である。図4において図1〜図3と同様の部位には同様の符号を付している。例えば、配線基板10に電子部品6が搭載されるとともに配線導体5とボンディングワイヤ(符号なし)を介して電気的に接続され、電子部品6から絶縁基板11の上面にかけて樹脂材料等の封止材7で封止されて、図4に示すような電子装置20が作製される。   FIG. 4 is a cross-sectional view illustrating an electronic device according to an embodiment of the present invention. 4, parts similar to those in FIGS. 1 to 3 are denoted by the same reference numerals. For example, the electronic component 6 is mounted on the wiring substrate 10 and is electrically connected to the wiring conductor 5 via a bonding wire (not indicated), and a sealing material such as a resin material is applied from the electronic component 6 to the upper surface of the insulating substrate 11. 7 is used to produce an electronic device 20 as shown in FIG.

電子装置20は、まず多数個取り配線基板9の配線基板領域2にそれぞれ電子部品6を搭載して、次に電子部品6から母基板1の上面にかけて封止材7で封止し、その後、分割溝3が設けられた部分において多数個取り配線基板9を個片に分割するという手順で作製されたものであってもよい。   The electronic device 20 first mounts the electronic components 6 on the wiring board regions 2 of the multi-piece wiring board 9, and then seals with the sealing material 7 from the electronic components 6 to the upper surface of the mother board 1, and then It may be produced by a procedure in which the multi-piece wiring board 9 is divided into pieces at the portion where the dividing groove 3 is provided.

図4に示す例は、多数個取り配線基板9の各配線基板領域2に電子部品6が搭載されて封止材7で封止された後に、個片への分割が行なわれて作製された電子装置の例である。母基板1の破断に伴い、封止材7も破断しているため、封止材7の露出した側面は破断面になっている。なお、図4に示す封止材7の破断面における凹凸は模式的なものであり、実際の凹凸よりも強調している。   The example shown in FIG. 4 is manufactured by mounting the electronic component 6 on each wiring board region 2 of the multi-piece wiring board 9 and sealing it with the sealing material 7 and then dividing it into pieces. It is an example of an electronic device. As the mother substrate 1 is broken, the sealing material 7 is also broken, so that the exposed side surface of the sealing material 7 has a broken surface. In addition, the unevenness | corrugation in the torn surface of the sealing material 7 shown in FIG. 4 is typical, and is emphasized rather than an actual unevenness | corrugation.

封止材7は、例えばエポキシ樹脂やポリイミド樹脂,シリコーン樹脂等の、熱硬化性の樹脂材料からなる。未硬化の樹脂材料(図示せず)を、電子部品6から母基板1の上面にかけて被覆するように塗布した後、この未硬化の樹脂材料を加熱して硬化させることによって、電子部品6を、樹脂材料からなる封止材7で封止することができる。   The sealing material 7 is made of a thermosetting resin material such as an epoxy resin, a polyimide resin, or a silicone resin. After applying an uncured resin material (not shown) so as to cover the upper surface of the mother board 1 from the electronic component 6, the electronic component 6 is obtained by heating and curing the uncured resin material. It can be sealed with a sealing material 7 made of a resin material.

多数個取り配線基板9の各配線基板領域2の上面に電子部品6を搭載した後に個片に分割する場合には、母基板1の外周部分、つまりダミー領域4等の上面に枠状の部材(図示せず)を載せるとともに、これを母基板1の上面に強く押し付ける。これにより、封止材7となる未硬化の樹脂材料が母基板1の上面の外縁から外側に流れ出ることが防止される。   When the electronic component 6 is mounted on the upper surface of each wiring board region 2 of the multi-cavity wiring substrate 9 and divided into individual pieces, a frame-shaped member is formed on the outer peripheral portion of the mother board 1, that is, the upper surface of the dummy region 4 or the like. (Not shown) is placed and strongly pressed against the upper surface of the mother board 1. Thereby, the uncured resin material that becomes the sealing material 7 is prevented from flowing out from the outer edge of the upper surface of the mother board 1.

この場合、母基板1には下向きに圧力が加わり、この圧力の一部が、母基板1のうち分割溝3が設けられている部分に加わる。   In this case, a pressure is applied to the mother board 1 downward, and a part of the pressure is applied to a portion of the mother board 1 where the dividing grooves 3 are provided.

上記多数個取り配線基板9において、母基板1に設けられた分割溝3内には、母基板1を形成しているセラミック焼結体との同時焼成によって設けられたガラス8が充填されている。なお、ガラス8が、例えば透明であって、透光性の材料であるため、図1(図1(b))〜図4においてガラス8にはハッチングを施していない。   In the multi-cavity wiring board 9, the dividing grooves 3 provided in the mother board 1 are filled with glass 8 provided by simultaneous firing with a ceramic sintered body forming the mother board 1. . In addition, since the glass 8 is transparent and is a translucent material, the glass 8 is not hatched in FIG. 1 (FIG.1 (b))-FIG.

このようなガラス8が分割溝3内に充填されていることから、分割溝3が形成された部分における母基板1の機械的な強度が補強される。そのため、例えば樹脂による封止等の取り扱い時に、誤って母基板1が割れるようなことは抑制される。   Since the glass 8 is filled in the dividing groove 3, the mechanical strength of the mother substrate 1 in the portion where the dividing groove 3 is formed is reinforced. Therefore, it is possible to prevent the mother board 1 from being accidentally cracked during handling such as sealing with resin.

また、分割溝3内に設けられているガラス8自体の機械的な強度が母基板1に比べて小さいため、母基板1を破断させるような大きな応力、つまり個片の配線基板10への分割のための応力が加えられたときには、ガラス8自体が破断し、母基板1が個片の配線基板10に容易に分割される。したがって、個片の配線基板10への分割が容易であるとともに、誤って割れるような可能性が低減された多数個取り配線基板9を提供することができる。   Further, since the mechanical strength of the glass 8 itself provided in the dividing groove 3 is smaller than that of the mother board 1, a large stress that breaks the mother board 1, that is, the division of the individual pieces into the wiring board 10. When the stress is applied, the glass 8 itself is broken and the mother board 1 is easily divided into the individual wiring boards 10. Therefore, it is possible to provide a multi-piece wiring board 9 that can be easily divided into individual wiring boards 10 and has a reduced possibility of being broken by mistake.

ガラス8として用いられるガラス材料としては、ホウケイ酸系ガラスやリチウム−ケイ酸系ガラス等が挙げられる。   Examples of the glass material used as the glass 8 include borosilicate glass and lithium-silicate glass.

これらのガラス材料は、機械的な強度が比較的高く、また、母基板1を形成しているセラミック焼結体との同時焼成によって設けられていることから、母基板1に対する接合の強度が高い。そのため、封止材7となる上記未硬化の樹脂材料による電子部品6の封止時に加わる圧力では、ガラス8自体が破断することも、ガラス8が母基板1からはがれることも、効果的に抑制される。そのため、上記のように、分割溝3が設けられた部分における母基板1の割れが抑制され得る。   These glass materials have a relatively high mechanical strength and are provided by co-firing with a ceramic sintered body forming the mother substrate 1, so that the bonding strength to the mother substrate 1 is high. . Therefore, it is possible to effectively prevent the glass 8 itself from being broken or the glass 8 from being peeled off from the mother substrate 1 by the pressure applied when the electronic component 6 is sealed with the uncured resin material to be the sealing material 7. Is done. Therefore, as described above, the crack of the mother substrate 1 at the portion where the dividing groove 3 is provided can be suppressed.

ガラス8は、母基板1との同時焼成によって設けられているため、この同時焼成時の収縮率を母基板1(母基板1となるセラミックグリーンシート)と同じ程度に調整するための添加材が添加されていてもよい。このような添加材としては、酸化アルミニウムや酸化カルシウム等の、母基板1に含まれるセラミック成分と同様のセラミック材料が挙げられる。   Since the glass 8 is provided by co-firing with the mother substrate 1, an additive for adjusting the shrinkage ratio at the time of co-firing to the same degree as that of the mother substrate 1 (the ceramic green sheet that becomes the mother substrate 1) is provided. It may be added. Examples of such an additive include a ceramic material similar to the ceramic component contained in the mother substrate 1 such as aluminum oxide and calcium oxide.

ガラス8は、そのガラス8が設けられているか否かの検査をより容易とするために、例えば母基板1と異なる色調に着色されていてもよい。着色用の添加材としては、ガラス8および母基板1との同時焼成が可能な、マンガンやチタン等の金属の酸化物等が挙げられる。   The glass 8 may be colored in, for example, a color different from that of the mother board 1 in order to make it easier to inspect whether or not the glass 8 is provided. Examples of the coloring additive include oxides of metals such as manganese and titanium that can be co-fired with the glass 8 and the mother substrate 1.

ガラス8は、分割溝3を隙間なく充填するように設けられていることが好ましい。この場合には、分割溝3が設けられた部分における母基板1の機械的な強度をより効果的に高めることができる。   The glass 8 is preferably provided so as to fill the dividing groove 3 without a gap. In this case, the mechanical strength of the mother board 1 in the portion where the dividing grooves 3 are provided can be increased more effectively.

ガラス8は、分割溝3を充填するように設けられている場合に、その上部が分割溝3の上端(開口部分)よりも上方向に突出していても構わない。ガラス8のうち分割溝3の上端よりも上方向に突出した部分は、例えば縦断面において扇形状(上面が円弧状)である。上面が円弧状のガラス8は、上側から加わる応力が分散されやすいため、上記樹脂封止時に加わる圧力でガラス8自体が破断する可能性が低減され得る。   When the glass 8 is provided so as to fill the dividing groove 3, the upper portion thereof may protrude upward from the upper end (opening portion) of the dividing groove 3. The portion of the glass 8 that protrudes upward from the upper end of the dividing groove 3 has, for example, a fan shape (the upper surface has an arc shape) in the longitudinal section. Since the glass 8 having an arcuate upper surface is easily dispersed from the stress applied from the upper side, the possibility that the glass 8 itself is broken by the pressure applied during the resin sealing can be reduced.

また、ガラス8は、分割溝3から母基板1の上面にかけて一体的に設けられていてもよい。この場合には、分割溝3が設けられた部分における母基板1の機械的な強度をより効果的に高めることができるとともに、ガラス8の母基板1に対する付着の強度をさらに高めることができる。   Further, the glass 8 may be provided integrally from the dividing groove 3 to the upper surface of the mother substrate 1. In this case, the mechanical strength of the mother substrate 1 in the portion where the dividing grooves 3 are provided can be more effectively increased, and the strength of adhesion of the glass 8 to the mother substrate 1 can be further increased.

ガラス8が分割溝3から母基板1の上面にかけて一体的に設けられている例としては、例えば図4に示した例のように、分割溝3の上端から突出した、縦断面が扇形状の上部の一部が母基板1の上面に延びた例が挙げられる。この例の場合には、ガラス8の一部を母基板1の上面に延ばすだけであるため、多数個取り配線基板9としての生産性の点で有利である。   As an example in which the glass 8 is integrally provided from the dividing groove 3 to the upper surface of the mother substrate 1, the vertical section protruding from the upper end of the dividing groove 3 has a fan shape, for example, as shown in FIG. An example in which a part of the upper part extends to the upper surface of the mother board 1 is given. In the case of this example, only a part of the glass 8 is extended to the upper surface of the mother board 1, which is advantageous in terms of productivity as the multi-piece wiring board 9.

分割溝3内にガラス8が充填された多数個取り配線基板9が個片の配線基板10に分割されたときには、個々の配線基板10において、絶縁基板11の側面の上端部分が下方から上方に向かって内側に傾斜する。また、この傾斜した部分にガラス8aが設けられている。   When the multi-cavity wiring board 9 in which the dividing grooves 3 are filled with the glass 8 is divided into the individual wiring boards 10, the upper end portions of the side surfaces of the insulating substrate 11 in the individual wiring boards 10 are directed upward from below. Tilt inward. Moreover, the glass 8a is provided in this inclined part.

このような配線基板10によれば、上記構成の多数個取り配線基板9が分割されてなるものであるため、絶縁基板11におけるカケ等の不具合が抑制され得る。また、絶縁基板11の側面の上端部に残ったガラス8aによって、絶縁基板11の側面の上端部と上面の外周部との間の角部分が保護されて、カケ等が抑制され得る。   According to such a wiring substrate 10, since the multi-piece wiring substrate 9 having the above-described configuration is divided, problems such as chipping in the insulating substrate 11 can be suppressed. Further, the glass 8a remaining on the upper end portion of the side surface of the insulating substrate 11 protects the corner portion between the upper end portion of the side surface of the insulating substrate 11 and the outer peripheral portion of the upper surface, so that chipping and the like can be suppressed.

したがって、信頼性の高い電子装置20を製作することが容易な配線基板10を提供することができる。   Therefore, it is possible to provide the wiring board 10 that makes it easy to manufacture a highly reliable electronic device 20.

また、このような配線基板10に電子部品6が搭載された形態の電子装置20によれば、絶縁基板11におけるカケ等の不具合が抑制された配線基板10に電子部品6が搭載されているとともに、樹脂材料7によって封止されていることから、信頼性が高い電子装置20を提供することができる。   Further, according to the electronic device 20 in which the electronic component 6 is mounted on the wiring board 10 as described above, the electronic component 6 is mounted on the wiring board 10 in which defects such as chipping in the insulating substrate 11 are suppressed. Since it is sealed with the resin material 7, the highly reliable electronic device 20 can be provided.

なお、実際の電子部品6の搭載は、個片の配線基板10ではなく、多数個取り配線基板9の配線基板領域2に対して行なわれていてもよい。この場合でも、個片の配線基板10に電子部品6が搭載されてなる形態の電子装置20が製作され得る。   The actual electronic component 6 may be mounted on the wiring board region 2 of the multi-piece wiring board 9 instead of the individual wiring board 10. Even in this case, the electronic device 20 having a configuration in which the electronic component 6 is mounted on the individual wiring board 10 can be manufactured.

図5は、図4に示す電子装置における要部を拡大して示す断面図である。図5において図4と同様の部位には同様の符号を付している。また、図5においても、ガラス8aにはハッチングを施していない。   FIG. 5 is an enlarged cross-sectional view showing a main part of the electronic device shown in FIG. 5, parts similar to those in FIG. 4 are denoted by the same reference numerals. Also in FIG. 5, the glass 8a is not hatched.

個片の配線基板10および電子装置20において、絶縁基板11の側面の上端部分に設けられたガラス8aは、多数個取り配線基板9において分割溝3内に設けられていたガラス8が厚み方向に破断したものである。絶縁基板10に設けられたガラス8aの露出した側面は、図5に示すように破断面になっている。封止材7の側面も上記のように破断面であり、これらの破断面の表面が比較的粗くいため、配線基板10または電子装置20の側面部分をジグ等で挟んで持ち上げるときに、破断面部分がいわゆる滑り止めになって、ジグ等による配線基板10または電子装置20の保持がより容易になる。   In the individual wiring substrate 10 and the electronic device 20, the glass 8 a provided at the upper end portion of the side surface of the insulating substrate 11 is the glass 8 provided in the dividing groove 3 in the multi-piece wiring substrate 9 in the thickness direction. It has broken. The exposed side surface of the glass 8a provided on the insulating substrate 10 has a broken surface as shown in FIG. Since the side surfaces of the sealing material 7 are also fractured surfaces as described above, and the surfaces of these fractured surfaces are relatively rough, the fractured surface is broken when the side part of the wiring board 10 or the electronic device 20 is sandwiched and lifted. The portion becomes a so-called non-slip, and the holding of the wiring board 10 or the electronic device 20 by a jig or the like becomes easier.

また、例えば多数個取り配線基板9を個片の配線基板10に分割した後に、熱硬化性樹脂からなる封止材7で電子部品6を封止するときに、封止材7の接合に対するアンカー効果が大きくなる。そのため、封止材7の配線基板10に対する接合強度が高められる。   Further, for example, when the electronic component 6 is sealed with the sealing material 7 made of a thermosetting resin after the multi-piece wiring board 9 is divided into the individual wiring boards 10, an anchor for joining the sealing material 7 is used. The effect is increased. Therefore, the bonding strength of the sealing material 7 to the wiring board 10 is increased.

(変形例)
図6(a)〜(c)は、それぞれ本発明の実施形態の多数個取り配線基板の変形例における要部を示す断面図である。図6において図1および図2と同様の部位には同様の符号を付している。
(Modification)
FIGS. 6A to 6C are cross-sectional views showing the main parts in a modification of the multi-cavity wiring board according to the embodiment of the present invention. 6, parts similar to those in FIGS. 1 and 2 are denoted by the same reference numerals.

図6(a)に示す例は、ガラス8が、母基板1の上面のより広い範囲に設けられている
例である。この場合には、ガラス8と母基板1との接合の面積がより大きくなる。そのため、ガラス8と母基板1との接合強度をより大きくすることができる。この多数個取り配線基板9が個片に分割されてなる配線基板(図示せず)および電子装置(図示せず)においても、ガラス8の絶縁基板11に対する接合強度が大きく、信頼性の高い電子装置を作製することができる。
The example shown in FIG. 6A is an example in which the glass 8 is provided in a wider range on the upper surface of the mother substrate 1. In this case, the bonding area between the glass 8 and the mother substrate 1 becomes larger. Therefore, the bonding strength between the glass 8 and the mother substrate 1 can be further increased. Also in a wiring board (not shown) and an electronic device (not shown) in which the multi-piece wiring board 9 is divided into individual pieces, the bonding strength of the glass 8 to the insulating substrate 11 is large, and a highly reliable electron. A device can be made.

図6(b)に示す例は、ガラス8が、母基板1の上面のより広い範囲に設けられているとともに、ガラス8の厚みが配線導体5よりも厚い例である。この場合にも、ガラス8と母基板1との接合の面積および強度が向上され、より信頼性の高い電子装置を作製すること等ができる。   In the example shown in FIG. 6B, the glass 8 is provided in a wider range on the upper surface of the mother substrate 1, and the glass 8 is thicker than the wiring conductor 5. Also in this case, the bonding area and strength between the glass 8 and the mother substrate 1 are improved, and a more reliable electronic device can be manufactured.

また、この場合には、母基板1の上面における層状のガラス8の開口部分において配線導体5が露出している形態とみなすこともできる。そのため、ガラス8の開口部分の形状等を調整することによって、配線導体5の露出しているパターンを調整できる。配線導体5の露出した表面にニッケルや金等のめっき層(図示せず)を被着させる際には、このめっき層による、隣り合う配線導体5同士の間の電気的絶縁性の低下を抑制することもできる。   In this case, it can also be considered that the wiring conductor 5 is exposed in the opening portion of the layered glass 8 on the upper surface of the mother substrate 1. Therefore, the exposed pattern of the wiring conductor 5 can be adjusted by adjusting the shape and the like of the opening portion of the glass 8. When a plating layer (not shown) such as nickel or gold is applied to the exposed surface of the wiring conductor 5, the deterioration of the electrical insulation between the adjacent wiring conductors 5 due to this plating layer is suppressed. You can also

また、ガラス8の上面に凹凸があるため、封止材7とガラス8の上面との接合面積が大きくなって、ガラス8の配線基板10に対する接合強度が向上し得る。そのため、より信頼性の高い電子装置を作製することができる。   In addition, since the upper surface of the glass 8 is uneven, the bonding area between the sealing material 7 and the upper surface of the glass 8 is increased, and the bonding strength of the glass 8 to the wiring substrate 10 can be improved. Therefore, a more reliable electronic device can be manufactured.

図6(c)に示す例は、ガラス8が、母基板1の上面のより広い範囲に設けられているとともに、ガラス8の一部が配線導体5の外周部分を被覆している例である。この場合にも、ガラス8と母基板1との接合の面積および強度が向上され、より信頼性の高い電子装置を作製すること等ができる。   The example shown in FIG. 6C is an example in which the glass 8 is provided in a wider range on the upper surface of the mother substrate 1 and a part of the glass 8 covers the outer peripheral portion of the wiring conductor 5. . Also in this case, the bonding area and strength between the glass 8 and the mother substrate 1 are improved, and a more reliable electronic device can be manufactured.

また、この場合には、配線導体5の外周部分が層状のガラス8の一部で被覆されているため、例えば配線導体5と母基板1(または絶縁基板11)との熱膨張率の差に起因する熱応力による配線導体5の母基板1(または絶縁基板11)からのはがれ等も効果的に抑制される。そのため、より信頼性の高い電子装置を作製することができる。   In this case, since the outer peripheral portion of the wiring conductor 5 is covered with a part of the layered glass 8, for example, the difference in thermal expansion coefficient between the wiring conductor 5 and the mother substrate 1 (or the insulating substrate 11). Peeling of the wiring conductor 5 from the mother board 1 (or insulating board 11) due to the resulting thermal stress is effectively suppressed. Therefore, a more reliable electronic device can be manufactured.

以下の実施例の多数個取り配線基板および比較例の多数個取り配線基板を作製した後、配線基板領域への電子部品の搭載および樹脂による封止を行ない、誤って母基板が割れるか否かを確認した。その後、分割溝に沿って応力を加えて母基板の分割作業を行ない、分割後の個片の配線基板の絶縁基板におけるバリ、カケ等の不具合の有無を確認した。確認は、いずれについても顕微鏡(倍率20倍)を用いた外観観察により行なった。   After making the multi-cavity wiring board of the following example and the multi-cavity wiring board of the comparative example, mounting the electronic components on the wiring board area and sealing with resin, whether the mother board is broken by mistake It was confirmed. Thereafter, the mother board was divided by applying stress along the dividing grooves, and the presence or absence of defects such as burrs and chippings in the insulating substrate of the divided wiring boards was confirmed. Confirmation was performed by appearance observation using a microscope (magnification 20 times).

実施例および比較例のいずれの多数個取り配線基板についても、母基板は、ホウケイ酸ガラス−酸化アルミニウム系のガラスセラミック焼結体により作製した。母基板は、1辺の長さが約100mmであり、厚みが約1.5mmの正方形板状であり、これに、1辺の長さが約5.5mmの正方形状の配線基板領域を16×16の縦横の並びに配列した。また、分割溝は
、母基板の上面に、約0.5mmの深さで設けた。
In any of the multi-cavity wiring boards of Examples and Comparative Examples, the mother board was made of a borosilicate glass-aluminum oxide glass ceramic sintered body. The mother board is a square plate having a side length of about 100 mm and a thickness of about 1.5 mm, and a square-shaped wiring board region having a side length of about 5.5 mm is formed by 16 × 16. Were arranged in rows and columns. Further, the dividing grooves were provided at a depth of about 0.5 mm on the upper surface of the mother substrate.

実施例の多数個取り配線基板においては、分割溝内にホウケイ酸系ガラスをガラスとして充填し、比較例の多数個取り配線基板においては分割溝にはガラスを充填しなかった。   In the multi-cavity wiring board of the example, borosilicate glass was filled as glass in the dividing groove, and in the multi-cavity wiring board of the comparative example, the dividing groove was not filled with glass.

これらの実施例の多数個取り配線基板および比較例の多数個取り配線基板(それぞれ10枚ずつであり、配線基板領域の個数にして2560個ずつ)について、電子部品を搭載した後
に、封止材としてエポキシ樹脂を用いて封止を行なった。封止時には、母基板の外周部に対して枠状部材を押し当てて、上側から加圧した。
After mounting the electronic components on the multi-cavity wiring board of these examples and the multi-cavity wiring board of the comparative example (each of which has 10 boards and 2560 wiring boards), the sealing material Sealing was performed using an epoxy resin. At the time of sealing, the frame-shaped member was pressed against the outer peripheral portion of the mother substrate and pressed from above.

母基板の分割は、実施例および比較例のいずれの多数個取り配線基板についても機械的な加圧で母基板の分割溝が設けられた部分に圧力を加えて行なった。   The division of the mother board was carried out by applying pressure to the portion of the mother board where the division grooves were provided by mechanical pressurization for both the multi-cavity wiring boards of Examples and Comparative Examples.

その結果、電子部品の封止時には、比較例の多数個取り配線基板において2個の多数個取り配線基板において、分割溝が設けられた部分における割れが見られた。この割れは、2個の多数個取り配線基板のいずれにおいても1か所であった。これに対して、実施例の多数個取り配線基板には割れは見られなかった。   As a result, at the time of sealing the electronic component, in the multi-cavity wiring board of the comparative example, cracks were observed in the two multi-cavity wiring boards where the dividing grooves were provided. This crack was at one place in any of the two multi-piece wiring boards. On the other hand, no crack was observed in the multi-cavity wiring board of the example.

また、多数個取り配線基板を分割した個片の配線基板においては、実施例および比較例のいずれにおいても、3個の配線基板において絶縁基板の側面にバリまたはカケの発生が見られた。以上の結果より、多数個取り配線基板において分割溝内にガラスを、母基板との同時焼成によって設けたことによる効果を確認することができた。   Further, in the individual wiring boards obtained by dividing the multi-piece wiring board, burrs or chips were observed on the side surfaces of the insulating board in the three wiring boards in both the examples and the comparative examples. From the above results, it was possible to confirm the effect obtained by providing glass in the dividing groove in the multi-cavity wiring board by simultaneous firing with the mother board.

1・・・母基板
2・・・配線基板領域
3・・・分割溝
4・・・ダミー領域
5・・・配線導体
6・・・電子部品
7・・・封止材
8・・・ガラス
8a・・ガラス
9・・・多数個取り配線基板
10・・・配線基板
11・・・絶縁基板
20・・・電子装置
DESCRIPTION OF SYMBOLS 1 ... Mother board 2 ... Wiring board area | region 3 ... Dividing groove 4 ... Dummy area 5 ... Wiring conductor 6 ... Electronic component 7 ... Sealing material 8 ... Glass 8a ..Glass 9 ... Multi-piece wiring board
10 ... wiring board
11 ... Insulated substrate
20 ... Electronic device

Claims (4)

母基板に複数の配線基板領域が配列されてなる多数個取り配線基板であって、
前記母基板がセラミック焼結体からなるとともに、該母基板の上面に、前記配線基板領域の境界に沿って分割溝が設けられており、
該分割溝内に、前記セラミック焼結体との同時焼成によって設けられたガラスが充填されていることを特徴とする多数個取り配線基板。
A multi-piece wiring board in which a plurality of wiring board regions are arranged on a mother board,
The mother board is made of a ceramic sintered body, and the upper surface of the mother board is provided with a dividing groove along the boundary of the wiring board region,
A multi-cavity wiring board, wherein the divided grooves are filled with glass provided by simultaneous firing with the ceramic sintered body.
前記ガラスが、前記分割溝内から前記母基板の前記上面にかけて一体的に設けられていることを特徴とする請求項1に記載の多数個取り配線基板。 The multi-piece wiring board according to claim 1, wherein the glass is integrally provided from the inside of the dividing groove to the upper surface of the mother board. 請求項1または請求項2に記載の多数個取り配線基板が前記配線基板領域毎に分割されて形成された配線基板であって、
上面と側面とを有するとともに、該側面の上端部分が下方から上方に向かって内側に傾斜している絶縁基板と、
該絶縁基板の前記側面の前記傾斜した部分に設けられたガラスとを備えていることを特徴とする配線基板。
A wiring board formed by dividing the multi-cavity wiring board according to claim 1 or 2 into each wiring board region,
An insulating substrate having an upper surface and a side surface, and an upper end portion of the side surface being inclined inward from below to above;
And a glass provided on the inclined portion of the side surface of the insulating substrate.
請求項3に記載の配線基板と、
該配線基板の前記絶縁基板の前記上面に搭載された電子部品と、
該電子部品を被覆している封止材とを備えていることを特徴とする電子装置。
The wiring board according to claim 3,
An electronic component mounted on the upper surface of the insulating substrate of the wiring board;
An electronic device comprising: a sealing material covering the electronic component.
JP2011279947A 2011-12-21 2011-12-21 Multi-cavity wiring board, wiring board and electronic device Expired - Fee Related JP5897897B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7187223B2 (en) 2018-09-07 2022-12-12 日本カーバイド工業株式会社 Multi-cavity board and manufacturing method of multi-cavity board

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0519273B2 (en) * 1987-03-13 1993-03-16 Matsushita Electric Ind Co Ltd
JP2003163442A (en) * 2001-11-26 2003-06-06 Kyocera Corp Ceramic wiring board
WO2011149097A1 (en) * 2010-05-28 2011-12-01 京セラ株式会社 Multi-chip wiring board and process for producing same, and wiring board and process for producing same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0519273B2 (en) * 1987-03-13 1993-03-16 Matsushita Electric Ind Co Ltd
JP2003163442A (en) * 2001-11-26 2003-06-06 Kyocera Corp Ceramic wiring board
WO2011149097A1 (en) * 2010-05-28 2011-12-01 京セラ株式会社 Multi-chip wiring board and process for producing same, and wiring board and process for producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7187223B2 (en) 2018-09-07 2022-12-12 日本カーバイド工業株式会社 Multi-cavity board and manufacturing method of multi-cavity board

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