JP4562301B2 - Electronic component storage package - Google Patents

Electronic component storage package Download PDF

Info

Publication number
JP4562301B2
JP4562301B2 JP2001053183A JP2001053183A JP4562301B2 JP 4562301 B2 JP4562301 B2 JP 4562301B2 JP 2001053183 A JP2001053183 A JP 2001053183A JP 2001053183 A JP2001053183 A JP 2001053183A JP 4562301 B2 JP4562301 B2 JP 4562301B2
Authority
JP
Japan
Prior art keywords
electronic component
metal frame
metal
brazing
storage package
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2001053183A
Other languages
Japanese (ja)
Other versions
JP2002261179A (en
Inventor
貫 清定
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Corp filed Critical Kyocera Corp
Priority to JP2001053183A priority Critical patent/JP4562301B2/en
Publication of JP2002261179A publication Critical patent/JP2002261179A/en
Application granted granted Critical
Publication of JP4562301B2 publication Critical patent/JP4562301B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/161Cap
    • H01L2924/1615Shape
    • H01L2924/16195Flat cap [not enclosing an internal cavity]

Description

【0001】
【発明の属する技術分野】
本発明は、半導体素子や圧電振動子、表面弾性波素子等の電子部品を収容するための電子部品収納用パッケージに関するものである。
【0002】
【従来の技術】
従来、半導体素子や圧電振動子等の電子部品を収容するための小型の電子部品収納用パッケージは、図3に斜視図で示すように、酸化アルミニウム質焼結体や窒化アルミニウム質焼結体・ムライト質焼結体・ガラス−セラミックス等の電気絶縁材料から成り、その上面中央部に電子部品16を搭載するための凹状の搭載部11aを有するとともに搭載部11a内から下面外周部にかけて導出する複数のメタライズ配線導体14および上面に搭載部11aを取り囲むように被着されたろう付け用メタライズ層15を有する絶縁基体11と、この絶縁基体11のろう付け用メタライズ層15に、搭載部11aを取り囲むようにして銀−銅ろう等のろう材を介して接合された鉄−ニッケル−コバルト合金等の金属から成る略四角枠状の金属枠体12と、この金属枠体12の上面にシームウエルド法等により接合される鉄−ニッケル−コバルト合金等の金属から成る金属蓋体13とから構成されている。
【0003】
そして、この従来の電子部品収納用パッケージによれば、絶縁基体11の搭載部11a底面に電子部品16を搭載するとともにこの電子部品16の電極を搭載部11a内のメタライズ配線導体14に例えば半田や導電性樹脂、ボンディングワイヤ等から成る電気的接続手段を介して電気的に接続し、しかる後、金属枠体12の上面に金属蓋体13をシームウエルド法により溶接することによって絶縁基体11と金属枠体12と金属蓋体13とから成る容器の内部に電子部品16が気密に封止され、それにより製品としての電子装置となる。
【0004】
なお、金属枠体12は、鉄−ニッケル−コバルト合金等から成る圧延金属板に打ち抜き金型により打ち抜き加工を施すことにより製作され、例えば、金属枠体12が長方形である場合、圧延金属板の圧延方向に対してその長辺が略平行となるように打ち抜かれている。
【0005】
【発明が解決しようとする課題】
ところで、圧延金属板を打ち抜いて製作された金属枠体12は、その熱膨張係数が圧延方向で大きく、これに直角な方向で小さいという性質を有している。また、圧延方向とこれに直角な方向とで打ち抜き面の状態が異なってしまう。そのため、従来のように、長辺を圧延金属板の圧延方向に対して平行と成るように打ち抜いた金属枠体12をろう付け用メタライズ層15にろう付けすると、金属枠体12の長辺側の熱膨張および熱収縮が大きいために金属枠体12の長辺とろう付け用メタライズ層15との間に大きな熱応力が発生してしまう。また、金属枠体12の側面に這い上がるろう材の量が打ち抜き面の状態の違いにより長辺側と短辺側とで異なったものとなり、金属枠体12とろう付け用メタライズ層15とを安定して強固に接合することができなかった。そして、このような従来の電子部品収納用パッケージの内部に電子部品を搭載した後、金属枠体12の上面に金属蓋体13をシームウエルド法等により溶接すると、溶接の熱により大きく熱膨張した金属枠体12および金属蓋体13が溶接後の冷却課程で大きく熱収縮することにより発生する熱応力とろう付け時に発生した応力が重畳して作用することにより金属枠体12に剥離が発生してしまい、その結果、この従来の電子部品収納用パッケージを用いた電子装置の気密信頼性が大きく損なわれてしまうという問題点を有していた。
【0006】
本発明は、かかる従来の問題点に鑑み案出されたものであり、その目的は、金属枠体とろう付け用メタライズ層とを強固に接合して、金属枠体12に剥離が発生することがない気密信頼性の高い電子部品収納用パッケージを提供することにある。
【0007】
【課題を解決するための手段】
本発明の電子部品収納用パッケージは、上面に電子部品が搭載される搭載部および該搭載部を取り囲む略四角枠状のろう付け用メタライズ層を有する絶縁基体の前記ろう付け用メタライズ層に、圧延金属板を打ち抜いて形成された略四角枠状の金属枠体を前記搭載部を取り囲むようにろう材を介してろう付けして成り、前記金属枠体上に金属蓋体をシームウエルド法により溶接するようになした電子部品収納用パッケージにおいて、前記金属枠体は、その各辺が前記圧延金属板の圧延方向に対して45度の角度となるように打ち抜かれており、前記各辺の側面への前記ろう材の這い上がりを均一なものとしていることを特徴とするものである。
【0008】
本発明の電子部品収納用パッケージによれば、金属枠体は、その各辺が圧延金属板の圧延方向に対して略45度の角度となるように打ち抜かれており、各辺の側面へのろう材の這い上がりを均一なものとしていることから、各辺における熱膨張係数が略同一となるとともに、各辺における打ち抜き面の状態が略均一となり、その結果、金属枠体をろう付け用
メタライズ層に強固に接合することができる。
【0009】
【発明の実施の形態】
次に、本発明を添付の図面を基に説明する。
【0010】
図1は、本発明の電子部品収納用パッケージの実施の形態の一例を示す斜視図であり、図中、1は絶縁基体、2は金属枠体、3は金属蓋体である。そして、主にこれらで電子部品6を気密に収容する容器が構成される。
【0011】
絶縁基体1は、例えば一辺の長さが2〜20mm程度で厚みが0.5〜3mm程度の略四角形状であり、その上面中央部に電子部品6を搭載するための略四角凹状の搭載部1aが設けてある。この搭載部1aには電子部品6が搭載固定される。
【0012】
このような絶縁基体1は、酸化アルミニウム質焼結体や窒化アルミニウム質焼結体・ムライト質焼結体・ガラス−セラミックス等の電気絶縁材料から成り、例えば酸化アルミニウム質焼結体から成る場合であれば、酸化アルミニウム・酸化珪素・酸化カルシウム・酸化マグネシウム等の原料粉末に適当な有機バインダ・溶剤を添加混合して泥漿状となすとともにこれを従来周知のドクタブレード法等を採用してシート状となすことによって複数枚のセラミックグリーンシートを得、しかる後、これらのセラミックグリーンシートの各々に適当な打ち抜き加工を施すとともにこれらを上下に積層し、約1600℃の温度で焼成することによって製作される。
【0013】
また、絶縁基体1には、搭載部1aの底面から側面を介して下面に導出する複数のメタライズ配線導体4が被着形成されている。メタライズ配線導体4は、搭載部1aに搭載される電子部品6の各電極を外部の電気回路に電気的に接続するための導電路として機能し、その搭載部1a底面部位には電子部品6の各電極が半田や導電性樹脂・ボンディングワイヤ等の電気的接続手段を介して電気的に接続され、また絶縁基体1の下面に導出した部位は半田等から成る電気的接続手段を介して外部電気回路に接続される。
【0014】
このようなメタライズ配線導体4は、タングステンやモリブデン・銅・銀等の金属粉末メタライズから成り、タングステン等の金属粉末に適当な有機バインダ・溶剤を添加混合して得た金属ペーストを絶縁基体1用のセラミックグリーンシートにスクリーン印刷法により所定パターンに印刷塗布し、これを絶縁基体1用のセラミックグリーンシート積層体とともに焼成することによって絶縁基体1の搭載部1a底面から側面を介して下面に導出するように被着形成される。
【0015】
なお、メタライズ配線導体4の表面には、メタライズ配線導体4が酸化腐食するのを有効に防止するとともにメタライズ配線導体4と電気的接続手段との接続性を良好なものとするために、通常であれば、厚みが1〜10μm程度のニッケルめっき層および厚みが0.1〜3.0μm程度の金めっき層が従来周知の電解めっき法や無電解めっき法により順次被着されている。
【0016】
さらに、絶縁基体1の上面には、搭載部1aを取り囲むようにしてタングステンやモリブデン・銅・銀等の金属粉末メタライズから成る略四角枠状のろう付け用メタライズ層5が被着形成されている。このろう付け用メタライズ層5は、厚みが10〜20μm程度、各辺の幅が0.2〜1.2mm程度であり、絶縁基体1に金属枠体2を接合するための下地金属として機能する。そして、このろう付け用メタライズ層5の上面には、搭載部1aを取り囲む略四角枠状の金属枠体2が銀ろう等のろう材を介してろう付けされている。このようなろう付け用メタライズ層5は、例えばタングステン等の金属粉末に適当な有機バインダ・溶剤を添加混合して得た金属ペーストを絶縁基体1用のセラミックグリーンシートにスクリーン印刷法により所定パターンに印刷塗布し、これを絶縁基体1用のセラミックグリーンシート積層体とともに焼成することによって絶縁基体1の上面に搭載部1aを取り囲むようにして被着形成される。
【0017】
なお、ろう付け用メタライズ層5の表面には、ろう付け用メタライズ層5とろう材との濡れ性を良好とするために、通常であれば、厚みが0.5〜5μm程度のニッケルめっき層がろう付けの前に予め被着されている。
【0018】
また、ろう付け用メタライズ層5に銀ろう等のろう材を介してろう付けされた金属枠体2は、例えば鉄−ニッケル合金や鉄−ニッケル−コバルト合金等の金属から成り、金属蓋体3を絶縁基体1に溶接するための下地金属部材として機能する。この金属枠体2は、その内周が搭載部1aの開口と略同じ大きさであり、厚みが0.1〜0.25mm程度、各辺の幅が0.1〜1mm程度である。さらに、その外周面および内周面の各角部には曲率半径が0.1〜2mm程度の丸みを有している。そして、この金属枠体2上に金属蓋体3を載置するとともに、これらを例えばシームウエルド法により溶接することによって金属蓋体3が金属枠体2に接合される。
【0019】
このような金属枠体2は、図2に上面図で示すように、鉄−ニッケル合金や鉄−ニッケル−コバルト合金等から成る圧延金属板を、各辺が圧延金属板の圧延方向に対して略45度の角度となるようにして打ち抜くことによって所定の枠状に製作されている。また、金属枠体2のろう付け用メタライズ層5へのろう付けは、金属枠体2をろう付け用メタライズ層5の上に例えば厚みが10〜50μmの箔状のろう材を挟んで載置し、しかる後、ろう材を加熱溶融させることによってろう付け用メタライズ層5と金属枠体2とをろう付けする方法が採用される。なお、ろう付け後のろう付け用メタライズ層5の露出表面および金属枠体2の露出表面およびろう材の露出表面にはろう付け用メタライズ層5および金属枠体2およびろう材が酸化腐食するのを有効に防止するために、通常であれば、厚みが0.5〜5μmのニッケルめっき層および厚みが0.1〜3.0μm程度の金めっき層が従来周知の電解めっき法や無電解めっき法により順次被着されている。
【0020】
そして、本発明においては、金属枠体2の各辺が圧延金属板の圧延方向に対して略45度の角度となるように打ち抜かれており、各辺の側面へのろう材の這い上がりを均一なものとしていることが重要である。このように、金属枠体2の各辺が圧延金属板の圧延方向に対して略45度の角度となるように打ち抜かれていることから、金属枠体2の各辺における熱膨張係数が略同一となるとともに各辺における打ち抜き面の状態が略均一なものとなる。そのため、金属枠体2をろう付け用メタライズ層5にろう付けした際に、金属枠体2の長辺に大きな熱応力が発生することを有効に防止することができるとともに、各辺の側面へのろう材の這い上がりを均一なものとして金属枠体2をろう付け用メタライズ層5に安定して強固に接合することができる。したがって、本発明の電子部品収納用パッケージによれば、金属枠体2に金属蓋体3をシームウエルド法により溶接しても金属枠体2が絶縁基体1から剥離することのない気密信頼性に優れ電子部品収納用パッケージを提供することができる。
【0021】
かくして、本発明の電子部品収納用パッケージによれば、絶縁基体1の搭載部1aに電子部品6をその各電極がメタライズ配線導体4に電気的に接続されるようにして搭載固定した後、絶縁基体1にろう付けされた金属枠体2に金属蓋体3をシームウエルド法等により溶接し、内部に電子部品6を気密に封止することによって電子装置となる。
【0022】
なお、本発明は、上述の実施の形態例に限定されるものではなく、本発明の要旨を逸脱しない範囲であれば種々の変更は可能であることはいうまでもない。
【0023】
【発明の効果】
本発明の電子部品収納用パッケージによれば、金属枠体の各辺が圧延金属板の圧延方向に対して略45度の角度となるように打ち抜かれており、各辺の側面へのろう材の這い上がりを均一なものとしていることから、金属枠体の各辺における熱膨張係数が略同一となるとともに、各辺における打ち抜き面の状態が略均一となる。その結果、金属枠体をろう付け用メタライズ層にろう付けした際に、金属枠体の長辺に大きな熱応力が発生することを有効に防止することができるとともに、各辺の側面へのろう材の這い上がりを均一なものとして金属枠体をろう付け用メタライズ層に安定して強固に接合することができる。したがって、本発明の電子部品収納用パッケージによれば、金属枠体に金属蓋体をシームウエルド法により溶接しても金属枠体が絶縁基体から剥離することのない気密信頼性に優れ電子部品収納用パッケージを提供することができる。
【図面の簡単な説明】
【図1】本発明の電子部品収納用パッケージの実施の形態の一例を示す斜視図である。
【図2】図1に示す電子部品収納用パッケージの金属枠体2の製作方法を説明するための上面図である。
【図3】従来の電子部品収納用パッケージを示す斜視図である。
【符号の説明】
1・・・・絶縁基体
1a・・・搭載部
2・・・・金属枠体
3・・・・金属蓋体
5・・・・ろう付け用メタライズ層
6・・・・電子部品
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component storage package for storing electronic components such as semiconductor elements, piezoelectric vibrators, and surface acoustic wave elements.
[0002]
[Prior art]
Conventionally, small-sized electronic component storage packages for storing electronic components such as semiconductor elements and piezoelectric vibrators, as shown in a perspective view in FIG. It is made of an electrically insulating material such as a mullite sintered body, glass-ceramics, etc., and has a concave mounting portion 11a for mounting the electronic component 16 at the center of the upper surface, and a plurality derived from the mounting portion 11a to the outer periphery of the lower surface. An insulating base 11 having a metallized wiring conductor 14 and a brazing metallized layer 15 deposited on the upper surface so as to surround the mounting part 11a, and the brazing metallized layer 15 of the insulating base 11 so as to surround the mounting part 11a. A substantially rectangular frame-shaped metal frame 12 made of a metal such as an iron-nickel-cobalt alloy joined via a brazing material such as silver-copper brazing, and a sheet on the upper surface of the metal frame 12. Iron is joined by weld method - nickel - and a metal lid 13 which made of a metal such as cobalt alloy.
[0003]
According to this conventional electronic component storage package, the electronic component 16 is mounted on the bottom surface of the mounting portion 11a of the insulating base 11, and the electrodes of the electronic component 16 are connected to the metallized wiring conductor 14 in the mounting portion 11a, for example by soldering. Electrical connection is made through an electrical connection means made of conductive resin, bonding wire, etc., and then the metal cover 13 is welded to the upper surface of the metal frame 12 by the seam weld method to connect the insulating base 11 and the metal. An electronic component 16 is hermetically sealed inside a container composed of the frame body 12 and the metal lid body 13, thereby providing an electronic device as a product.
[0004]
The metal frame 12 is manufactured by punching a rolled metal plate made of iron-nickel-cobalt alloy or the like with a punching die. For example, when the metal frame 12 is rectangular, It is punched so that its long side is substantially parallel to the rolling direction.
[0005]
[Problems to be solved by the invention]
By the way, the metal frame 12 manufactured by punching a rolled metal plate has a property that its thermal expansion coefficient is large in the rolling direction and small in the direction perpendicular to the rolling direction. In addition, the state of the punched surface differs between the rolling direction and the direction perpendicular thereto. Therefore, when the metal frame 12 punched so that the long side is parallel to the rolling direction of the rolled metal sheet is brazed to the metallized layer 15 for brazing as in the conventional case, the long side of the metal frame 12 Therefore, a large thermal stress is generated between the long side of the metal frame 12 and the metallizing layer 15 for brazing. Also, the amount of brazing material that crawls up to the side surface of the metal frame 12 is different on the long side and the short side due to the difference in the state of the punched surface, and the metal frame 12 and the metallizing layer 15 for brazing are combined. It was not possible to join stably and firmly. And after mounting an electronic component inside such a conventional electronic component storage package, when the metal lid 13 is welded to the upper surface of the metal frame 12 by the seam weld method or the like, it is greatly expanded due to the heat of welding. The metal frame 12 and the metal lid 13 are peeled off due to the superposition of the thermal stress generated when the metal frame 12 and the metal lid 13 are thermally contracted during the cooling process after welding and the stress generated during brazing. As a result, there is a problem in that the airtight reliability of the electronic device using the conventional electronic component storage package is greatly impaired.
[0006]
The present invention has been devised in view of such conventional problems, and its purpose is to firmly bond the metal frame and the metallization layer for brazing, and the metal frame 12 is peeled off. An object of the present invention is to provide a highly airtight and reliable electronic component storage package.
[0007]
[Means for Solving the Problems]
The electronic component storage package of the present invention is rolled into the brazing metallization layer of the insulating base having a mounting portion on which an electronic component is mounted on the upper surface and a brazing metallization layer having a substantially square frame shape surrounding the mounting portion. A substantially rectangular frame-shaped metal frame formed by punching a metal plate is brazed through a brazing material so as to surround the mounting portion, and a metal lid is welded onto the metal frame by a seam weld method. In the electronic component storage package, the metal frame is punched so that each side thereof is at an angle of 45 degrees with respect to the rolling direction of the rolled metal plate. It is characterized in that the above-mentioned brazing of the brazing material is made uniform.
[0008]
According to the electronic component storage package of the present invention, the metal frame is punched so that each side has an angle of approximately 45 degrees with respect to the rolling direction of the rolled metal plate . Since the creeping of the brazing material is made uniform , the coefficient of thermal expansion on each side is substantially the same, and the state of the punched surface on each side is substantially uniform, so that the metal frame is metalized for brazing. It can be firmly bonded to the layer.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will now be described with reference to the accompanying drawings.
[0010]
FIG. 1 is a perspective view showing an example of an embodiment of an electronic component storage package according to the present invention, in which 1 is an insulating base, 2 is a metal frame, and 3 is a metal lid. And the container which accommodates the electronic component 6 airtightly mainly by these is comprised.
[0011]
The insulating base 1 has, for example, a substantially square shape with a side length of about 2 to 20 mm and a thickness of about 0.5 to 3 mm, and a substantially square concave mounting portion 1a for mounting the electronic component 6 at the center of the upper surface. It is provided. An electronic component 6 is mounted and fixed on the mounting portion 1a.
[0012]
Such an insulating substrate 1 is made of an electrically insulating material such as an aluminum oxide sintered body, an aluminum nitride sintered body, a mullite sintered body, or a glass-ceramic, for example, an aluminum oxide sintered body. If there is, add a suitable organic binder and solvent to the raw material powder of aluminum oxide, silicon oxide, calcium oxide, magnesium oxide, etc. and mix it to make a mud, and then apply this to the conventional doctor blade method etc. to form a sheet To obtain a plurality of ceramic green sheets, and after that, each of these ceramic green sheets is appropriately punched and stacked one above the other and fired at a temperature of about 1600 ° C. The
[0013]
The insulating base 1 is formed with a plurality of metallized wiring conductors 4 that are led out from the bottom surface of the mounting portion 1a to the bottom surface through the side surface. The metallized wiring conductor 4 functions as a conductive path for electrically connecting each electrode of the electronic component 6 mounted on the mounting portion 1a to an external electric circuit. Each electrode is electrically connected via electrical connection means such as solder, conductive resin, bonding wire, etc., and the portion led out to the lower surface of the insulating substrate 1 is externally connected via electrical connection means made of solder or the like. Connected to the circuit.
[0014]
Such a metallized wiring conductor 4 is made of metal powder metallization such as tungsten, molybdenum, copper, and silver, and a metal paste obtained by adding and mixing an appropriate organic binder and solvent to metal powder such as tungsten is used for the insulating substrate 1. The ceramic green sheet is printed and applied in a predetermined pattern by a screen printing method, and is fired together with the ceramic green sheet laminate for the insulating substrate 1 to be led out from the bottom surface of the mounting portion 1a of the insulating substrate 1 to the lower surface through the side surface. It is formed as follows.
[0015]
In order to effectively prevent the metallized wiring conductor 4 from being oxidized and corroded on the surface of the metallized wiring conductor 4 and to improve the connectivity between the metalized wiring conductor 4 and the electrical connecting means, If present, a nickel plating layer having a thickness of about 1 to 10 μm and a gold plating layer having a thickness of about 0.1 to 3.0 μm are sequentially deposited by a conventionally known electrolytic plating method or electroless plating method.
[0016]
Further, a brazing metallization layer 5 having a substantially square frame shape made of metal powder metallization of tungsten, molybdenum, copper, silver or the like is deposited on the upper surface of the insulating substrate 1 so as to surround the mounting portion 1a. . The brazing metallized layer 5 has a thickness of about 10 to 20 μm and a width of each side of about 0.2 to 1.2 mm, and functions as a base metal for joining the metal frame 2 to the insulating substrate 1. A metal frame 2 having a substantially square frame shape surrounding the mounting portion 1a is brazed to the upper surface of the brazing metallization layer 5 via a brazing material such as silver brazing. Such a brazing metallized layer 5 is formed, for example, by applying a metal paste obtained by adding and mixing a suitable organic binder / solvent to a metal powder such as tungsten to a ceramic green sheet for the insulating substrate 1 in a predetermined pattern by screen printing. It is applied and formed on the upper surface of the insulating substrate 1 so as to surround the mounting portion 1a by printing and applying it and firing it together with the ceramic green sheet laminate for the insulating substrate 1.
[0017]
In order to improve the wettability between the brazing metallization layer 5 and the brazing material, a nickel plating layer having a thickness of about 0.5 to 5 μm is usually brazed on the surface of the brazing metallization layer 5. It is pre-deposited before application.
[0018]
The metal frame 2 brazed to the brazing metallization layer 5 via a brazing material such as silver brazing is made of a metal such as iron-nickel alloy or iron-nickel-cobalt alloy, and the metal lid 3 Functions as a base metal member for welding to the insulating substrate 1. The inner circumference of the metal frame 2 is substantially the same size as the opening of the mounting portion 1a, the thickness is about 0.1 to 0.25 mm, and the width of each side is about 0.1 to 1 mm. Furthermore, each corner | angular part of the outer peripheral surface and an internal peripheral surface has a roundness whose curvature radius is about 0.1-2 mm. The metal lid 3 is placed on the metal frame 2 and welded by, for example, the seam weld method, so that the metal lid 3 is joined to the metal frame 2.
[0019]
As shown in a top view in FIG. 2, such a metal frame 2 is made of a rolled metal plate made of an iron-nickel alloy, an iron-nickel-cobalt alloy, or the like, each side with respect to the rolling direction of the rolled metal plate. It is manufactured in a predetermined frame shape by punching at an angle of approximately 45 degrees. Further, the metal frame 2 is brazed to the brazing metallization layer 5 by placing the metal frame 2 on the brazing metallization layer 5 with a foil brazing material having a thickness of 10 to 50 μm, for example. Thereafter, a method of brazing the brazing metallized layer 5 and the metal frame 2 by heating and melting the brazing material is employed. The brazed metallized layer 5, the metal frame 2, and the brazing material are subject to oxidative corrosion on the exposed surface of the brazing metallized layer 5 and the exposed surface of the metal frame 2 and the exposed surface of the brazing material after brazing. In order to prevent this effectively, normally, a nickel plating layer having a thickness of 0.5 to 5 μm and a gold plating layer having a thickness of about 0.1 to 3.0 μm are sequentially applied by a conventionally known electrolytic plating method or electroless plating method. Has been.
[0020]
In the present invention, each side of the metal frame 2 is punched so as to have an angle of about 45 degrees with respect to the rolling direction of the rolled metal sheet. It is important to make it uniform . Thus, since each side of the metal frame 2 is punched so as to have an angle of about 45 degrees with respect to the rolling direction of the rolled metal sheet, the coefficient of thermal expansion at each side of the metal frame 2 is substantially equal. It becomes the same and the state of the punching surface in each side becomes substantially uniform. Therefore, when the metal frame 2 is brazed to the metallizing layer 5 for brazing, it is possible to effectively prevent a large thermal stress from being generated on the long side of the metal frame 2, and to the side surface of each side. can be of the upper creep of the brazing material of the metal frame 2 stably on the brazing metallized layer 5 firmly joined as RioHitoshi one. Therefore, according to the electronic component storage package of the present invention, even if the metal lid 3 is welded to the metal frame 2 by the seam weld method, the metal frame 2 does not peel from the insulating base 1 and has airtight reliability. it is possible to provide an excellent package for an electronic component housing.
[0021]
Thus, according to the electronic component storage package of the present invention, the electronic component 6 is mounted and fixed on the mounting portion 1a of the insulating base 1 so that each electrode thereof is electrically connected to the metallized wiring conductor 4, and then insulated. The metal lid body 3 is welded to the metal frame body 2 brazed to the base body 1 by a seam weld method or the like, and the electronic component 6 is hermetically sealed therein to form an electronic device.
[0022]
Note that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.
[0023]
【The invention's effect】
According to the electronic component storage package of the present invention, each side of the metal frame is punched so as to have an angle of about 45 degrees with respect to the rolling direction of the rolled metal plate, and the brazing material to the side surface of each side since you are the collection of excess as uniform, the thermal expansion coefficient at each side of the metal frame is substantially the same, the state of the blanked surface at each side is substantially uniform. As a result, when the metal frame is brazed to the metallization layer for brazing, it is possible to effectively prevent the occurrence of large thermal stress on the long side of the metal frame and to braze the side of each side. on creep of wood can be a metal frame stably in brazing metallized layer strongly bonded as RioHitoshi one. Therefore, according to the electronic component storing package of the present invention, an electronic component metal frame be welded by seam weld method a metal lid to a metal frame and excellent without airtightness reliability from being separated from the insulating substrate A storage package can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of an embodiment of an electronic component storage package according to the present invention.
2 is a top view for explaining a method of manufacturing the metal frame 2 of the electronic component storage package shown in FIG. 1; FIG.
FIG. 3 is a perspective view showing a conventional electronic component storage package.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Insulating base | substrate 1a ... Mounting part 2 ... Metal frame 3 ... Metal lid 5 ... Metallizing layer 6 for brazing ... Electronic component

Claims (1)

上面に電子部品が搭載される搭載部および該搭載部を取り囲む略四角枠状のろう付け用メタライズ層を有する絶縁基体の前記ろう付け用メタライズ層に、圧延金属板を打ち抜いて形成された略四角枠状の金属枠体を前記搭載部を取り囲むようにろう材を介してろう付けして成り、前記金属枠体上に金属蓋体をシームウエルド法により溶接するようになした電子部品収納用パッケージにおいて、前記金属枠体は、その各辺が前記圧延金属板の圧延方向に対して45度の角度となるように打ち抜かれており、前記各辺の側面への前記ろう材の這い上がりを均一なものとしていることを特徴とする電子部品収納用パッケージ。A substantially square formed by punching a rolled metal plate on the brazing metallization layer of the insulating base having a mounting part on which an electronic component is mounted on the upper surface and a brazing metallization layer having a substantially square frame shape surrounding the mounting part. Electronic component storage package comprising a frame-shaped metal frame brazed via a brazing material so as to surround the mounting portion, and a metal lid is welded onto the metal frame by a seam weld method. The metal frame is punched so that each side thereof is at an angle of 45 degrees with respect to the rolling direction of the rolled metal plate, and the curling up of the brazing material to the side surface of each side is uniformly performed. Electronic component storage package characterized by
JP2001053183A 2001-02-27 2001-02-27 Electronic component storage package Expired - Fee Related JP4562301B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001053183A JP4562301B2 (en) 2001-02-27 2001-02-27 Electronic component storage package

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001053183A JP4562301B2 (en) 2001-02-27 2001-02-27 Electronic component storage package

Publications (2)

Publication Number Publication Date
JP2002261179A JP2002261179A (en) 2002-09-13
JP4562301B2 true JP4562301B2 (en) 2010-10-13

Family

ID=18913687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001053183A Expired - Fee Related JP4562301B2 (en) 2001-02-27 2001-02-27 Electronic component storage package

Country Status (1)

Country Link
JP (1) JP4562301B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7294563B1 (en) 2021-09-06 2023-06-20 株式会社村田製作所 Capacitor array and capacitor array assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6398650U (en) * 1986-12-16 1988-06-25
JPH05335433A (en) * 1992-05-27 1993-12-17 Kyocera Corp Package for accommodating semiconductor element
JPH06163774A (en) * 1992-11-16 1994-06-10 Dainippon Printing Co Ltd Lead frame
JP2000195976A (en) * 1998-12-24 2000-07-14 Kyocera Corp Package for housing electronic component

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6398650U (en) * 1986-12-16 1988-06-25
JPH05335433A (en) * 1992-05-27 1993-12-17 Kyocera Corp Package for accommodating semiconductor element
JPH06163774A (en) * 1992-11-16 1994-06-10 Dainippon Printing Co Ltd Lead frame
JP2000195976A (en) * 1998-12-24 2000-07-14 Kyocera Corp Package for housing electronic component

Also Published As

Publication number Publication date
JP2002261179A (en) 2002-09-13

Similar Documents

Publication Publication Date Title
JP4439291B2 (en) Piezoelectric vibrator storage package and piezoelectric device
JP3556567B2 (en) Electronic component storage package
JP4562301B2 (en) Electronic component storage package
JP3764669B2 (en) Seal ring with brazing material and method of manufacturing electronic component storage package using the same
JP4614594B2 (en) Electronic component storage package
JP2005072421A (en) Package for housing electronic component and electronic device
JP4446590B2 (en) Electronic component storage package and manufacturing method thereof
JP2004288737A (en) Substrate for mounting electronic component and electronic device employing it
JP4355097B2 (en) Wiring board manufacturing method
JP2002158305A (en) Package for accommodating electronic component
JP4328197B2 (en) Electronic component storage package and electronic device
JP4284168B2 (en) Electronic component storage package and electronic device
JP2002231845A (en) Electronic part storing package
JP3442029B2 (en) Electronic component storage package and method of manufacturing the same
JP2002170895A (en) Package for housing electronic component and method for sealing the same
JP3140439B1 (en) Electronic component storage package
JP3427053B2 (en) Electronic component storage package
JP2002353350A (en) Package for storing electronic part
JP3372812B2 (en) Electronic component storage package
JPH07211822A (en) Package for accommodating semiconductor element
JP3847220B2 (en) Wiring board
JP4105968B2 (en) Electronic component mounting substrate and electronic device using the same
JP4331957B2 (en) Piezoelectric vibrator storage package
JP2001237332A (en) Package for accommodation of electronic part
JP3393784B2 (en) Electronic component storage package

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20071119

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091209

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100112

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100223

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100420

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100603

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100629

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100727

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130806

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 4562301

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees