JP5465002B2 - Lid member wafer manufacturing method and lid member manufacturing method - Google Patents

Lid member wafer manufacturing method and lid member manufacturing method Download PDF

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JP5465002B2
JP5465002B2 JP2009297102A JP2009297102A JP5465002B2 JP 5465002 B2 JP5465002 B2 JP 5465002B2 JP 2009297102 A JP2009297102 A JP 2009297102A JP 2009297102 A JP2009297102 A JP 2009297102A JP 5465002 B2 JP5465002 B2 JP 5465002B2
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lid member
wafer
main surface
resist
manufacturing
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JP2011139223A (en
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健司 大場
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Kyocera Crystal Device Corp
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Description

本発明は、部品素子が気密封止されている電子部品に用いられる蓋部材が複数設けられている蓋部材ウエハの製造方法及び蓋部材の製造方法に関する。 The present invention relates to a method of manufacturing a cover member wafer manufacturing method and the lid member lid member used in an electronic component part element is hermetically sealed is kicked plurality set.

素子搭載部材と蓋部材とが接合されて素子搭載部材に搭載されている部品素子が気密封止されている電子部品は、例えば、その部品素子が圧電振動素子である圧電デバイスがある。   An electronic component in which a component element mounted on the element mounting member is hermetically sealed by joining the element mounting member and the lid member is, for example, a piezoelectric device in which the component element is a piezoelectric vibration element.

ここで、圧電デバイスの一例である圧電振動子について説明する。
圧電振動子は、例えば、図5に示すように、部品素子である圧電振動素子330と素子搭載部材320と蓋部材310とから主に構成されている。
Here, a piezoelectric vibrator as an example of a piezoelectric device will be described.
For example, as shown in FIG. 5, the piezoelectric vibrator mainly includes a piezoelectric vibration element 330 that is a component element, an element mounting member 320, and a lid member 310.

部品素子である圧電振動素子330は、図1に示すように、例えば、圧電片331と励振電極332と引き回し電極333とから構成されている。
圧電片331は、例えば、圧電材料が用いられ、矩形形状の平板状に設けられている。
励振電極332は、例えば、2つ一対となっている。
一方の励振電極332は、圧電片331の一方の主面に設けられている。また、他方の励振電極332は、圧電片331の他方の主面であって、一方の励振電極332と対向する位置に設けられている。
引き回し電極333は、例えば、2つ一対となっている。
一方の引き回し電極333は、一方の端部が一方の励振電極332に接続されており他方の端部が圧電片332の他方の主面の一方の短辺側に位置するように設けられている。また、他方の引き回し電極333は、一方の端部が他方の励振電極332に接続されており他方の端部が圧電片331の一方の主面の一方の短辺側に位置するように設けられている。
As shown in FIG. 1, the piezoelectric vibration element 330, which is a component element, includes, for example, a piezoelectric piece 331, an excitation electrode 332, and a routing electrode 333.
The piezoelectric piece 331 is made of, for example, a piezoelectric material and is provided in a rectangular flat plate shape.
For example, the excitation electrode 332 is a pair of two.
One excitation electrode 332 is provided on one main surface of the piezoelectric piece 331. The other excitation electrode 332 is provided on the other main surface of the piezoelectric piece 331 and at a position facing the one excitation electrode 332.
The routing electrodes 333 are, for example, a pair of two.
One routing electrode 333 is provided such that one end is connected to one excitation electrode 332 and the other end is positioned on one short side of the other main surface of the piezoelectric piece 332. . The other routing electrode 333 is provided such that one end thereof is connected to the other excitation electrode 332 and the other end is located on one short side of one main surface of the piezoelectric piece 331. ing.

素子搭載部材320は、矩形形状の平板状に設けられている。また、素子搭載部材320は、一方の主面に2つ一対の搭載端子Pが設けられており、他方の主面に複数の外部端子Gが設けられている。また、素子搭載部材320は、例えば、他方の主面の縁に沿って素子搭載部材接合用膜323が設けられている。
搭載端子Pは、例えば、素子搭載部材320の一方の主面であって一方の短辺側に沿って2つ並んで設けられている。
外部端子Gは、例えば、素子搭載部材320の他方の主面の4隅に一つずつ設けられている。所定の外部端子Gと所定の搭載端子Pとは、電気的に接続された状態となっている。
素子搭載部材接合用膜323は、素子搭載部材320の一方の主面の縁に沿って環状に設けられおり、素子搭載部材320と後述する蓋部材310とを接合させるために設けられている。
素子搭載部材320は、2つ一対の搭載端子Pと圧電振動素子330の引き回し電極333とが、例えば、導電性接着剤Dにより電気的に接続された状態で固定することにより、圧電振動素子330が搭載された状態となる。
The element mounting member 320 is provided in a rectangular flat plate shape. The element mounting member 320 is provided with two pairs of mounting terminals P on one main surface and a plurality of external terminals G on the other main surface. In addition, the element mounting member 320 is provided with an element mounting member bonding film 323 along the edge of the other main surface, for example.
For example, two mounting terminals P are provided side by side along one short side of one of the main surfaces of the element mounting member 320.
For example, one external terminal G is provided at each of the four corners of the other main surface of the element mounting member 320. The predetermined external terminal G and the predetermined mounting terminal P are in an electrically connected state.
The element mounting member bonding film 323 is provided in an annular shape along the edge of one main surface of the element mounting member 320, and is provided to bond the element mounting member 320 and a lid member 310 described later.
The element mounting member 320 is fixed in a state in which the two pairs of mounting terminals P and the routing electrode 333 of the piezoelectric vibration element 330 are electrically connected by, for example, the conductive adhesive D, so that the piezoelectric vibration element 330 is fixed. Will be installed.

蓋部材310は、金属が用いられている。
また、蓋部材310は、図5に示すように、一方の主面に部品素子用凹部空間313が設けられている。また、蓋部材310は、例えば、一方の主面の縁に沿って環状の蓋部材接合用金属膜314が設けられている。
また、蓋部材は、図5に示すように、基板部311と枠部312aと鍔部312bとから主に構成されている。
The lid member 310 is made of metal.
Further, as shown in FIG. 5, the lid member 310 is provided with a component element recess space 313 on one main surface. The lid member 310 is provided with an annular lid member joining metal film 314 along the edge of one main surface, for example.
Further, as shown in FIG. 5, the lid member mainly includes a substrate portion 311, a frame portion 312 a, and a flange portion 312 b.

基板部311は、金属からなっており、例えば、矩形形状の平板状に設けられている。   The substrate portion 311 is made of metal, and is provided in a rectangular flat plate shape, for example.

枠部312aは、金属からなっている。
また、枠部312aは、例えば、中央部に貫通する矩形形状の孔が設けられた枠形状の平板状に設けられており、基板部311の一方の主面の縁に沿って設けられている。
The frame portion 312a is made of metal.
Further, the frame portion 312a is provided in a frame-shaped flat plate shape provided with a rectangular hole penetrating in the central portion, for example, and is provided along the edge of one main surface of the substrate portion 311. .

鍔部312bは、金属からなっている。
また、鍔部312bは、例えば、中央部に貫通する孔が設けられた枠形状の平板状に設けられている。また、鍔部312bは、この中央部に設けられた貫通孔の開口部付近で鍔部の厚みが薄くなっている。
また、鍔部312bは、基板部311と枠部312aとが接触している面に対向する枠部312aの面に設けられている。
The collar portion 312b is made of metal.
Moreover, the collar part 312b is provided in the frame-shaped flat plate shape in which the hole penetrated in the center part was provided, for example. Further, the flange portion 312b has a thin flange portion in the vicinity of the opening portion of the through hole provided in the central portion.
Moreover, the collar part 312b is provided in the surface of the frame part 312a facing the surface where the board | substrate part 311 and the frame part 312a are contacting.

つまり、蓋部材310は、基板部311の一方の主面に設けられた枠部312aに鍔部312bが設けられて、部品素子用凹部空間313が設けられている。   In other words, the lid member 310 is provided with the flange 312 b on the frame 312 a provided on one main surface of the substrate 311, and the component element recessed space 313.

ここで、蓋部材310の一方の主面は、枠部312aと鍔部312bと接触している面に対向する鍔部312bの一方の主面、つまり、部品素子用凹部空間313の開口部が設けられている主面とする。
また、蓋部材310の他方の主面は、枠部312aと基板部311の接触している面に対向する基板部311の他方の主面とする。
Here, one main surface of the lid member 310 is one main surface of the flange portion 312b facing the surface in contact with the frame portion 312a and the flange portion 312b, that is, the opening of the component element recess space 313. The main surface is provided.
The other main surface of the lid member 310 is the other main surface of the substrate portion 311 that faces the surface where the frame portion 312a and the substrate portion 311 are in contact.

従って、蓋部材接合用膜314は、枠部312aと鍔部312bとが接触している面に対向する鍔部312bの面の縁に沿って環状に設けられている。つまり、蓋部材接合用膜314は、蓋部材310の一方の主面の縁に沿って環状に設けられている。
また、蓋部材接合用膜314は、素子搭載部材310に設けられた素子搭載部材用接合膜321に対向する位置に環状に設けられている。
また、蓋部材接合用膜314は、素子搭載部材320と蓋部材310とを接合させるために設けられている。
Therefore, the lid member bonding film 314 is provided in an annular shape along the edge of the surface of the flange portion 312b that faces the surface where the frame portion 312a and the flange portion 312b are in contact. That is, the lid member bonding film 314 is provided in an annular shape along the edge of one main surface of the lid member 310.
The lid member bonding film 314 is provided in an annular shape at a position facing the element mounting member bonding film 321 provided on the element mounting member 310.
The lid member bonding film 314 is provided to bond the element mounting member 320 and the lid member 310 together.

蓋部材310は、図5に示すように、基板部311と枠部312aと鍔部312bとから主に構成されており、基板部311と枠部312aと鍔部312bとによって部品素子用凹部空間313が設けられている
また、蓋部材310は、素子搭載部材320に設けられた素子搭載部材接合用膜321と蓋部材接合用膜314とが重ね合わされて溶融されることで素子搭載部材320と接合される。
また、蓋部材310は、図5に示すように、素子搭載部材320と接合されることで一方の主面に設けられた部品素子用凹部空間313内に素子搭載部材320に搭載されている圧電振動素子330を気密封止した状態となる(例えば、特許文献1参照)。
As shown in FIG. 5, the lid member 310 is mainly composed of a substrate portion 311, a frame portion 312 a, and a flange portion 312 b, and the component element recess space is formed by the substrate portion 311, the frame portion 312 a, and the flange portion 312 b. Further, the lid member 310 is formed by superimposing the element mounting member bonding film 321 and the lid member bonding film 314 provided on the element mounting member 320 to be melted. Be joined.
Further, as shown in FIG. 5, the lid member 310 is joined to the element mounting member 320 so that the piezoelectric element is mounted on the element mounting member 320 in the component element recessed space 313 provided on one main surface. The vibration element 330 is hermetically sealed (see, for example, Patent Document 1).

なお、蓋部材と素子搭載部材とを接合する方法、つまり、部品素子である圧電振動素子を気密封止する方法は、蓋部材が金属からなる場合、例えば、素子搭載部材に設けられた素子搭載部材接合用膜と蓋部材に設けられた蓋部材接合用膜とを重ね合わせた状態で蓋部材に電流を流して素子搭載部材接合用膜と蓋部接合用膜とを溶融させて接合するシーム溶接がある。   In addition, the method of joining the lid member and the element mounting member, that is, the method of hermetically sealing the piezoelectric vibration element that is a component element is, for example, an element mounting provided on the element mounting member when the lid member is made of metal. A seam that melts and bonds the element mounting member bonding film and the lid bonding film by passing an electric current through the lid member in a state where the member bonding film and the lid member bonding film provided on the lid member are overlapped. There is welding.

また、部品素子である圧電振動素子を気密封止する方法は、素子搭載部材接合用膜と蓋部材接合用膜とを重ね合わせた状態で、例えば、レーザーを照射することにより溶融させて素子搭載部材と蓋部材とを接合する方法がある。
また、部品素子である圧電振動素子を気密封止する方法は、素子搭載部材接合用膜と蓋部材接合用膜とを重ねた状態で、例えば、ハロゲンランプを用いて加熱させることにより溶融させて素子搭載部材と蓋部材と接合する方法がある。
In addition, the method of hermetically sealing the piezoelectric vibration element which is a component element is a state in which the element mounting member bonding film and the lid member bonding film are overlapped, for example, by melting by laser irradiation to mount the element There is a method of joining a member and a lid member.
Further, a method of hermetically sealing a piezoelectric vibration element as a component element is a method in which the element mounting member bonding film and the lid member bonding film are stacked and melted by heating, for example, using a halogen lamp. There is a method of joining the element mounting member and the lid member.

次に、圧電デバイスの一例である圧電発振器について説明する。
圧電発振器は、素子搭載部材に集積回路素子が搭載されており、集積回路素子が圧電振動素子と電気的に接続された状態となっている点で圧電振動子と異なっている。
素子搭載部材は、例えば、一方の主面に搭載端子と集積回路搭載端子とが設けられており、他方の主面に外部端子が設けられている。また、素子搭載部材は、一方の主面の縁に沿って環状の素子搭載部材接合用膜が設けられている。
素子搭載部材は、所定の搭載端子と所定の集積回路搭載端子とが電気的に接続されており、所定の外部端子と所定の他の集積回路搭載端子とが電気的に接続されている。
集積回路素子は、例えば、圧電振動素子の振動に基づいて発振出力を制御する発振回路が組み込まれている。また、集積回路素子は、例えば、フリップチップボンディングによって集積回路搭載端子に搭載されている。
つまり、素子搭載部材は、一方の主面に部品素子である圧電振動素子と集積回路素子とが設けられている。
圧電発振器は、圧電振動素子と集積回路素子とが搭載されている素子搭載部材の一方の主面と部品素子用凹部空間が設けられている蓋部材の一方の主面とが接合されて、部品素子用凹部空間内に圧電振動素子と集積回路素子とが気密封止された状態となっている(例えば、特許文献2参照)。
Next, a piezoelectric oscillator that is an example of a piezoelectric device will be described.
A piezoelectric oscillator is different from a piezoelectric vibrator in that an integrated circuit element is mounted on an element mounting member, and the integrated circuit element is electrically connected to the piezoelectric vibration element.
In the element mounting member, for example, a mounting terminal and an integrated circuit mounting terminal are provided on one main surface, and an external terminal is provided on the other main surface. The element mounting member is provided with an annular element mounting member bonding film along the edge of one main surface.
In the element mounting member, a predetermined mounting terminal and a predetermined integrated circuit mounting terminal are electrically connected, and a predetermined external terminal and another predetermined integrated circuit mounting terminal are electrically connected.
The integrated circuit element incorporates, for example, an oscillation circuit that controls the oscillation output based on the vibration of the piezoelectric vibration element. The integrated circuit element is mounted on the integrated circuit mounting terminal by, for example, flip chip bonding.
That is, the element mounting member is provided with a piezoelectric vibration element and an integrated circuit element as component elements on one main surface.
A piezoelectric oscillator is a component in which one main surface of an element mounting member on which a piezoelectric vibration element and an integrated circuit element are mounted and one main surface of a lid member provided with a concave portion for component elements are joined. The piezoelectric vibration element and the integrated circuit element are hermetically sealed in the element recess space (see, for example, Patent Document 2).

このような圧電振動子300や圧電発振器などに用いられている蓋部材310、つまり、部品素子用凹部空間313が設けられている蓋部材310は、例えば、複数の蓋部材310となる部分が設けられている蓋部材ウエハW310が製造されて蓋部材310となる部分ごとに個片化されることによって設けられている。
このような蓋部材310は、例えば、酸化防止膜形成工程、絞り工程、蓋部材接合用膜工程、個片化工程、から主になっている。
The lid member 310 used in such a piezoelectric vibrator 300 or the piezoelectric oscillator, that is, the lid member 310 provided with the component element recess space 313 is provided with, for example, portions to be a plurality of lid members 310. The lid member wafer W <b> 310 thus manufactured is provided by being separated into pieces for each part to be the lid member 310.
Such a lid member 310 mainly includes, for example, an antioxidant film forming process, a drawing process, a lid member bonding film process, and an individualization process.

酸化防止膜形成工程は、複数の蓋部材310となる部分が設けられる蓋部材ウエハW310の両主面に酸化防止膜(図示せず)を設ける工程である。
蓋部材ウエハW310は、金属が用いられる。ここで、蓋部材ウエハW310は、例えば、鉄とニッケルとコバルトの合金が用いられる。
また、蓋部材ウエハW310は、例えば、矩形形状の平板状に設けられている。
酸化防止膜形成工程では、蓋部材ウエハW310が酸化されることを防ぐために酸化しにくい材質からなる酸化防止膜が設けられる。
また、酸化防止膜形成工程では、例えば、蓋部材ウエハW310の両主面にニッケルからなる酸化防止膜が設けられる。
なお、蓋部材ウエハが酸化されにくい場合、この酸化防止膜形成工程は行われない。
The antioxidant film forming step is a step of providing an antioxidant film (not shown) on both main surfaces of the lid member wafer W310 on which portions to be the plurality of lid members 310 are provided.
The lid member wafer W310 is made of metal. Here, for example, an alloy of iron, nickel, and cobalt is used for the lid member wafer W310.
The lid member wafer W310 is provided in a rectangular flat plate shape, for example.
In the antioxidant film forming step, an antioxidant film made of a material that is difficult to oxidize is provided in order to prevent the lid member wafer W310 from being oxidized.
In the antioxidant film forming step, for example, an antioxidant film made of nickel is provided on both main surfaces of the lid member wafer W310.
If the lid member wafer is difficult to be oxidized, this antioxidant film forming step is not performed.

絞り工程は、図6(a),図6(b),図6(c),図6(d)に示すように、蓋部材ウエハW310のそれぞれの蓋部材310となる部分にプレス機械により圧力を加えて絞りが行われる工程である。
ここで、絞りは、所定の形状をした2つ一対の金型で金属からなる平板を挟んだ状態で圧力を加え、金属からなる平板を塑性変化させて所定の形状と類似した形状に形成する方法である。
As shown in FIGS. 6 (a), 6 (b), 6 (c), and 6 (d), the squeezing step is performed by pressing a portion of the lid member wafer W310 that becomes the lid member 310 with a press machine. This is a process in which the squeezing is performed.
Here, the diaphragm is formed in a shape similar to the predetermined shape by applying pressure in a state where the flat plate made of metal is sandwiched between two pairs of molds having a predetermined shape, and plastically changing the flat plate made of metal. Is the method.

金型PK1,PK2は、一方の金型PK1が一方の主面に部品素子用凹部空間313と同じ形状となっている凸部を備え、他方の金型PK2が一方の主面に部品素子用凹部空間313と同じ形状となっている凹部を備えた形状となっている。   In the molds PK1 and PK2, one mold PK1 has a convex part having the same shape as the concave part space 313 for component elements on one main surface, and the other mold PK2 is for component elements on one main surface. The shape is provided with a recess having the same shape as the recess space 313.

絞り工程では、図6(b)に示すように、この2つ一対の金型PK1,PK2で蓋部材ウエハW310の両主面が挟まれて、図6(c)に示すように、一方の主面に凸部を備えた一方の金型PK1から圧力が加えられ他方の主面に凹部を備えた他方の金型PK2から圧力が加えられる。
つまり、絞り工程では、絞りによって平板状となっていた蓋部材310となる部分が折り曲げられ延ばされ塑性変化され、基板部311となる部分と枠部となる部分312aと鍔部312bとなる部分とが一体的に形成されて部品素子用凹部空間313が設けられる。
In the squeezing step, as shown in FIG. 6B, the two main surfaces of the lid member wafer W310 are sandwiched between the two pairs of molds PK1 and PK2, and as shown in FIG. Pressure is applied from one mold PK1 having a convex portion on the main surface, and pressure is applied from the other mold PK2 having a concave portion on the other main surface.
That is, in the squeezing step, the portion that becomes the lid member 310 that has been flattened by the squeezing is bent and extended to undergo plastic change, and the portion that becomes the substrate portion 311, the portion that becomes the frame portion 312 a, and the portion that becomes the flange portion 312 b Are integrally formed to provide a component element recess space 313.

このため、蓋部材310となる部分の断面形状を見た場合、図7に示すように、蓋部材310となる部分が折り曲げられた箇所では、平板状となっていた蓋部材310となる部分が折り曲げられる方向と反対側の主面が円弧状となる。
つまり、蓋部材310となる部分を断面から見た場合、図7に示すように、基板部311となる部分と枠部312bとなる部分とが設けられる箇所では、平板状の蓋部材310となる部分が他方の主面から折り曲げられるので蓋部材310となる部分の他方の主面の縁部、つまり、基板部311となる部分の他方の主面の縁部が円弧形状となる。
ここで、基板部311となる部分の他方の主面の縁部が円弧形状とは、図7に示すように、蓋部材310となる部分の断面形状を見た場合、基板部311となる部分の縁部の厚みが部品素子用凹部空間313内側に中心がある円の弧の様に縁に近づくにつれて連続的に薄くなっている状態になっている。
また、蓋部材310となる部分の断面形状を見た場合、図7に示すように、鍔部312bとなる部分と枠部312aとなる部分とが設けられる箇所、部品素子用凹部空間313の開口部側では、平板状の蓋部材310となる部分が一方の主面から折り曲げられるので部品素子用凹部空間313の開口部の縁部、つまり、部品素子用凹部空間313の開口部に沿った縁部が円弧状となる。
ここで、部品素子用凹部空間313の開口部に沿った縁部が円弧状とは、図7に示すように、蓋部材310となる部分の断面形状を見た場合、部品用凹部空間313の開口部側の鍔部312bとなる部分の縁部の厚みが部品素子用凹部空間313内側に中心がある円の弧の様に縁に近づくにつれて連続的に薄くなっている状態になっている。
従って、素子搭載部材320と蓋部材310とが接合される場合、円弧状となっていない鍔部312bとなる部分、つまり、鍔部312bの平らな部分が素子搭載部材320の一方の主面と接合されることとなる。
For this reason, when the cross-sectional shape of the portion that becomes the lid member 310 is viewed, as shown in FIG. 7, the portion that becomes the lid member 310 that is flat is formed at the portion where the portion that becomes the lid member 310 is folded. The main surface opposite to the direction in which it is bent is arcuate.
That is, when the portion that becomes the lid member 310 is viewed from the cross section, as shown in FIG. 7, the portion that becomes the substrate portion 311 and the portion that becomes the frame portion 312 b become the flat lid member 310. Since the portion is bent from the other main surface, the edge of the other main surface of the portion that becomes the lid member 310, that is, the edge of the other main surface of the portion that becomes the substrate portion 311 has an arc shape.
Here, the edge of the other principal surface of the portion that becomes the substrate portion 311 has an arc shape, as shown in FIG. 7, when the cross-sectional shape of the portion that becomes the lid member 310 is viewed, the portion that becomes the substrate portion 311 The thickness of the edge of the element is continuously thinner as it approaches the edge like a circular arc centered inside the concave part space 313 for component elements.
Further, when the cross-sectional shape of the portion that becomes the lid member 310 is viewed, as shown in FIG. On the part side, since the portion that becomes the flat lid member 310 is bent from one main surface, the edge of the opening of the component element recess space 313, that is, the edge along the opening of the component element recess space 313 The part is arcuate.
Here, the edge along the opening of the component element recess space 313 has an arc shape, as shown in FIG. 7, when the cross-sectional shape of the portion that becomes the lid member 310 is seen, The thickness of the edge portion of the portion that becomes the flange portion 312b on the opening side is continuously thinner as it approaches the edge like a circular arc centered inside the component element recess space 313.
Therefore, when the element mounting member 320 and the lid member 310 are joined, a portion that becomes the flange portion 312b that is not arcuate, that is, a flat portion of the flange portion 312b is connected to one main surface of the element mounting member 320. It will be joined.

蓋部材接合用膜形成工程は、蓋部材310となる部分の一方の主面、つまり、枠部312aと接している主面と対向する鍔部312bの主面の縁に沿って蓋部材接合用膜314(図5参照)を設ける工程である。
蓋部材接合用膜314は、素子搭載部材320の一方の主面に設けられる素子搭載部材接合用膜323と対向する位置に設けられる。また、蓋部材接合用膜314は、素子搭載部材320に設けられた素子搭載部材接合用膜323と重ね合わされた状態で溶融されて、素子搭載部材320と蓋部材310とを接合させる役割を果たす。
なお、蓋部材接合用膜形成工程は、蓋部材接合用膜314を設ける必要がない場合、例えば、接着剤により接合する場合、行われない。
The lid member joining film forming step is for joining the lid member along the edge of one principal surface of the portion to be the lid member 310, that is, the principal surface of the flange portion 312b facing the principal surface in contact with the frame portion 312a. This is a step of providing a film 314 (see FIG. 5).
The lid member bonding film 314 is provided at a position facing the element mounting member bonding film 323 provided on one main surface of the element mounting member 320. Further, the lid member bonding film 314 is melted in a state of being overlapped with the element mounting member bonding film 323 provided on the element mounting member 320, and plays a role of bonding the element mounting member 320 and the lid member 310. .
Note that the lid member bonding film forming step is not performed when the lid member bonding film 314 is not required to be provided, for example, when bonding with an adhesive.

個片化工程は、例えば、酸化防止膜形成工程、絞り工程、蓋部材接合用膜工程を経て製造された蓋部材ウエハW310を蓋部材310となる部分ごとに個片化する工程である。
個片化工程では、蓋部材ウエハW310が、例えば、プレス機械が用いられ、蓋部材310となる部分ごとに個片化されて蓋部材310が製造される。
The singulation process is a process in which, for example, the lid member wafer W <b> 310 manufactured through the antioxidant film formation process, the drawing process, and the lid member bonding film process is singulated for each portion that becomes the lid member 310.
In the singulation process, the lid member wafer W310 is, for example, used in a press machine, and the lid member 310 is manufactured by singulation for each portion to be the lid member 310.

このような蓋部材310は、図6(a),図6(b),図6(c),図6(d)に示すように、それぞれの平板状の蓋部材310となる部分が2つ一対の金型PK1,PK2で挟まれ、2つ一対の金型PK1,PK2から圧力が加えられて折り曲げられ塑性変化させられて部品素子用凹部空間313が設けられている蓋部材ウエハW310を個片化することで製造されている。
このような蓋部材310は、基板部311と枠部312aと鍔部312bとが一体的に形成されて、一方の主面に部品素子用凹部空間313が設けられている。
このような蓋部材310は、一方の主面、つまり、枠部312aと鍔部312bとが接している面に対向する鍔部312bの主面である平らな部分が、部品素子330が搭載されている素子搭載部材320の一方の主面と接合される(例えば、特許文献3参照)。
As shown in FIGS. 6A, 6B, 6C, and 6D, such a lid member 310 has two portions that become flat plate-like lid members 310, as shown in FIGS. A lid member wafer W310 that is sandwiched between a pair of molds PK1 and PK2 and is bent and plastically changed by applying pressure from the two pairs of molds PK1 and PK2 to provide a component element recess space 313 is provided. It is manufactured by singulation.
In such a lid member 310, the substrate portion 311, the frame portion 312 a, and the flange portion 312 b are integrally formed, and a component element recessed space 313 is provided on one main surface.
In such a lid member 310, the component element 330 is mounted on one main surface, that is, a flat portion that is a main surface of the flange portion 312b facing the surface where the frame portion 312a and the flange portion 312b are in contact. It is joined to one main surface of the mounted element mounting member 320 (see, for example, Patent Document 3).

特開2006−279872号公報JP 2006-279872 A 特開2009−164664号公報JP 2009-164664 A 特開2004−186428号公報JP 2004-186428 A

従来の蓋部材ウエハの製造方法は、プレス機械によって圧力が加えられて部品素子用凹部空間を設けている。
このため、従来の蓋部材ウエハの製造方法は、蓋部材ウエハの場所によって圧力の加えられ方が異なる恐れがあるため、蓋部材ウエハ内の部品素子用凹部空間の大きさのばらつきが大きくなり生産性が低下する恐れがある。
In the conventional method of manufacturing a lid member wafer, pressure is applied by a press machine to provide a concave portion space for component elements.
For this reason, in the conventional lid member wafer manufacturing method, pressure may be applied differently depending on the location of the lid member wafer, resulting in a large variation in the size of the recess space for component elements in the lid member wafer. May be reduced.

また、従来の蓋部材ウエハの製造方法は、2つ一対の金型で平板状の蓋部材となる部分を挟んだ状態で両主面から圧力が加えられて塑性変化させられている。
つまり、従来の蓋部材ウエハの製造方法は、蓋部材と同じ形状となるように2つ一対の金型が必要となり、蓋部材の形状が微細な場合、手間と時間を要するため、生産性が低下する恐れがある。
Further, in the conventional method of manufacturing a lid member wafer, pressure is applied from both main surfaces in a state where a portion that becomes a flat lid member is sandwiched between two pairs of molds, and plastically changed.
In other words, the conventional lid member wafer manufacturing method requires two pairs of molds so as to have the same shape as the lid member, and if the lid member shape is fine, labor and time are required. May fall.

従来の蓋部材の製造方法は、プレス機械によって圧力を加えて部品素子用凹部空間を設けた蓋部材ウエハを製造し、蓋部材を設けている。
このため、従来の蓋部材の製造方法は、蓋部材ウエハの場所によって圧力の加えられ方が異なると部品素子用凹部空間の大きさにばらつきがある恐れがあり生産性が低下する恐れがある。
In a conventional method for manufacturing a lid member, a lid member wafer is provided by manufacturing a lid member wafer provided with a concave portion space for component elements by applying pressure with a press machine.
For this reason, in the conventional method for manufacturing a lid member, if the pressure is applied differently depending on the location of the lid member wafer, there is a possibility that the size of the recess space for component elements may vary, and the productivity may be reduced.

そこで、本発明では、鍔部を設けることなく素子搭載部材と接合することができ、接合時の歪みによる変形及び破損を防ぐことができ、生産性のよい蓋部材の製造方法及び蓋部材ウエハの製造方法を提供することを課題とする。 Therefore, in the present invention, can be bonded to the element mounting member without providing a flange portion, it is possible to prevent deformation and damage due to strain during bonding method and the lid member wafer productivity have good lid member It is an object to provide a manufacturing method.

前記課題を解決するため、本発明の蓋部材ウエハの製造方法は、複数の蓋部材となる部分が設けられている金属からなる蓋部材ウエハの両主面にレジストを付着させるレジスト付着工程と、それぞれの前記蓋部材となる部分の一方の主面であって部品素子用凹部空間の開口部と重なる部分の前記レジストを除去する第一のレジスト除去工程と、前記蓋部材ウエハのそれぞれの前記蓋部材となる部分の他方の主面に設けられる溝部の開口部と重なる部分のレジストを除去する第二のレジスト除去工程と、エッチング技術を用いてそれぞれの前記蓋部材となる部分に前記部品素子用凹部空間を設ける部品素子用凹部空間形成工程と、エッチング技術を用いて前記蓋部材となる部分の他方の主面に溝部を設ける溝部形成工程と、前記蓋部材ウエハに付着している前記レジストを全て除去する全レジスト除去工程と、を備えたことを特徴とする。 In order to solve the above problems, a method for producing a lid member wafer according to the present invention includes a resist attaching step of attaching a resist to both main surfaces of a lid member wafer made of metal provided with a portion to be a plurality of lid members, A first resist removing step of removing the resist on one main surface of each of the portions to be the lid members and overlapping with the opening of the concave portion space for component elements; and each lid of the lid member wafer A second resist removing step for removing a resist in a portion overlapping with an opening of a groove portion provided on the other main surface of the portion serving as a member; and for each of the parts serving as the lid member using an etching technique. a component element recess space forming step of forming a concave space, and the groove forming step of forming a groove in the other main surface of the portion serving as the lid member by using the etching technique, the lid member wafer And the total resist removal step of all the resist being worn removed, characterized by comprising a.

また、前記課題を解決するため、蓋部材ウエハの製造方法により製造された前記蓋部材ウエハを前記蓋部材となる部分ごとに個片化する個片化工程を含むことを特徴とする。   Moreover, in order to solve the said subject, the individualization process which separates the said lid member wafer manufactured by the manufacturing method of the lid member wafer for every part used as the said lid member is characterized by the above-mentioned.

このような蓋部材ウエハの製造方法は、レジストを塗布して部品素子用凹部空間の開口部と重なる位置のレジストを除去しエッチング技術を用いて部品素子用凹部空間を設けている。
このため、このような蓋部材ウエハの製造方法は、従来の蓋部材ウエハの製造方法のように圧力による蓋部材ウエハ内の部品素子用凹部空間の大きさのばらつきを抑えることができ生産性を向上させることができる。
In such a method for producing a lid member wafer, a resist is applied to remove a resist at a position overlapping with the opening of the component element recess space, and the component element recess space is provided by using an etching technique.
For this reason, such a lid member wafer manufacturing method can suppress the variation in the size of the recess space for the component elements in the lid member wafer due to pressure as in the conventional lid member wafer manufacturing method. Can be improved.

このような蓋部材の製造方法は、レジストを塗布して部品素子用凹部空間の開口部と重なる位置のレジストを除去しエッチング技術を用いて部品素子用凹部空間を設けた蓋部材ウエハを個片化して設けている。
このため、このような蓋部材の製造方法は、従来の蓋部材の製造方法のように部品素子用凹部空間の大きさのばらつきを抑えることができるので生産性を向上させることができる。
Such a lid member manufacturing method includes applying a resist to remove the resist at a position overlapping with the opening of the component element recess space, and using an etching technique to provide a lid member wafer provided with the component element recess space. Is provided.
For this reason, since the manufacturing method of such a lid member can suppress the dispersion | variation in the magnitude | size of the recessed part space for component elements like the manufacturing method of the conventional lid member, it can improve productivity.

本発明の第一の実施形態に係る蓋部材を用いた電子部品の一例を示す断面図である。It is sectional drawing which shows an example of the electronic component using the cover member which concerns on 1st embodiment of this invention. (a)は、本発明の第一の実施形態に係る蓋部材ウエハの製造方法におけるレジスト付着工程前の蓋部材ウエハの状態の一例を示す概念図であり、(b)は、本発明の第一の実施形態に係る蓋部材ウエハの製造方法におけるレジスト付着工程後の蓋部材ウエハの状態の一例を示す概念図であり、(c)は、本発明の第一の実施形態に係る蓋部材ウエハの製造方法における第一のレジスト除去工程後の蓋部材ウエハの状態の一例を示す概念図であり、(d)は、本発明の第一の実施形態に係る蓋部材ウエハの製造方法における部品素子用凹部空間形成工程後の蓋部材ウエハの状態の一例を示す概念図であり、(e)は、本発明の第一の実施形態に係る蓋部材ウエハの製造方法における全レジスト除去工程後の蓋部材ウエハの状態の一例を示す概念図である。(A) is a conceptual diagram which shows an example of the state of the cover member wafer before the resist adhesion process in the manufacturing method of the cover member wafer which concerns on 1st embodiment of this invention, (b) is the 1st of this invention. It is a conceptual diagram which shows an example of the state of the cover member wafer after the resist adhesion process in the manufacturing method of the cover member wafer which concerns on one embodiment, (c) is the cover member wafer which concerns on 1st embodiment of this invention. It is a conceptual diagram which shows an example of the state of the cover member wafer after the 1st resist removal process in this manufacturing method, (d) is a component element in the manufacturing method of the cover member wafer which concerns on 1st embodiment of this invention. It is a conceptual diagram which shows an example of the state of the cover member wafer after the recessed part space formation process for an object, (e) is the cover after the all resist removal process in the manufacturing method of the cover member wafer which concerns on 1st embodiment of this invention. Outline showing an example of the state of a member wafer It is a diagram. 本発明の第二の実施形態に係る蓋部材を用いた電子部品の一例を示す断面図である。It is sectional drawing which shows an example of the electronic component using the cover member which concerns on 2nd embodiment of this invention. (a)は、本発明の第二の実施形態に係る蓋部材ウエハの製造方法におけるレジスト付着工程前の蓋部材ウエハの状態の一例を示す概念図であり、(b)は、本発明の第二の実施形態に係る蓋部材ウエハの製造方法におけるレジスト付着工程後の蓋部材ウエハの状態の一例を示す概念図であり、(c)は、本発明の第二の実施形態に係る蓋部材ウエハの製造方法における第一のレジスト除去工程後の蓋部材ウエハの状態の一例を示す概念図であり、(d)は、本発明の第二の実施形態に係る蓋部材ウエハの製造方法における部品素子用凹部空間形成工程後の蓋部材ウエハの状態の一例を示す概念図であり、(e)は、本発明の第二の実施形態に係る蓋部材ウエハの製造方法における全レジスト除去工程後の蓋部材ウエハの状態の一例を示す概念図である。(A) is a conceptual diagram which shows an example of the state of the cover member wafer before the resist adhesion process in the manufacturing method of the cover member wafer which concerns on 2nd embodiment of this invention, (b) is the 1st of this invention. It is a conceptual diagram which shows an example of the state of the cover member wafer after the resist adhesion process in the manufacturing method of the cover member wafer which concerns on 2nd embodiment, (c) is the cover member wafer which concerns on 2nd embodiment of this invention. It is a conceptual diagram which shows an example of the state of the cover member wafer after the 1st resist removal process in this manufacturing method, (d) is the component element in the manufacturing method of the cover member wafer which concerns on 2nd embodiment of this invention. It is a conceptual diagram which shows an example of the state of the cover member wafer after the recessed part space formation process for an object, (e) is the cover after the all resist removal process in the manufacturing method of the cover member wafer which concerns on 2nd embodiment of this invention. Outline showing an example of the state of a member wafer It is a diagram. 従来の蓋部材を用いた電子部品の一例を示す断面図である。It is sectional drawing which shows an example of the electronic component using the conventional cover member. (a)は、従来の蓋部材ウエハの製造方法における部品素子用凹部空間形成工程前の蓋部材ウエハの状態の一例を示す概念図であり、(b)は、従来の蓋部材ウエハの製造方法における部品素子用凹部空間形成工程直前の蓋部材ウエハの状態の一例を示す概念図であり、(c)は、従来の蓋部材ウエハの製造方法における部品素子用凹部空間形成工程中の蓋部材ウエハの状態の一例を示す概念図であり、(d)は、従来の蓋部材ウエハの製造方法における部品素子用凹部空間形成工程後の蓋部材ウエハの状態の一例を示す概念図である。(A) is a conceptual diagram which shows an example of the state of the cover member wafer before the recessed part space formation process for component elements in the manufacturing method of the conventional cover member wafer, (b) is the manufacturing method of the conventional cover member wafer It is a conceptual diagram which shows an example of the state of the cover member wafer just before the recessed part space formation process for component elements in (c), The cover member wafer in the recessed part space formation process for component elements in the manufacturing method of the conventional cover member wafer It is a conceptual diagram which shows an example of the state of this, (d) is a conceptual diagram which shows an example of the state of the cover member wafer after the recessed part space formation process for component elements in the manufacturing method of the conventional cover member wafer. 従来の蓋部材ウエハの製造方法における絞り工程の蓋部材となる部分の断面の状態を示す概念図である。It is a conceptual diagram which shows the state of the cross section of the part used as the cover member of the drawing process in the manufacturing method of the conventional cover member wafer.

次に、本発明を実施するための最良の形態について説明する。なお、各図面において、各構成要素の状態をわかりやすくするために誇張して図示している。   Next, the best mode for carrying out the present invention will be described. In each drawing, the state of each component is exaggerated for easy understanding.

(第一の実形態)
本発明の第一の実施形態に係る蓋部材について説明する。
図1に示すように、蓋部材110は、素子搭載部材120に搭載されている部品素子130を気密封止する役割を果たす。つまり、蓋部材110は、部品素子130が素子搭載部材120と接合されて部品素子130が気密封止される電子部品100に用いられる。
ここで電子部品100が、例えば、部品素子130が圧電振動素子130であり、また圧電デバイス100が圧電振動子100の場合について説明する。
(First form)
The lid member according to the first embodiment of the present invention will be described.
As shown in FIG. 1, the lid member 110 serves to hermetically seal the component element 130 mounted on the element mounting member 120. That is, the lid member 110 is used in the electronic component 100 in which the component element 130 is joined to the element mounting member 120 and the component element 130 is hermetically sealed.
Here, the case where the electronic component 100 is, for example, the component element 130 is the piezoelectric vibrating element 130 and the piezoelectric device 100 is the piezoelectric vibrator 100 will be described.

圧電振動子100は、図1に示すように、部品素子である圧電振動素子130と素子搭載部材120と蓋部材110とから主に構成されている。   As shown in FIG. 1, the piezoelectric vibrator 100 mainly includes a piezoelectric vibration element 130 that is a component element, an element mounting member 120, and a lid member 110.

部品素子である圧電振動素子130は、図1に示すように、例えば、圧電片131と励振電極132と引き回し電極133とから主に構成されている。   As shown in FIG. 1, the piezoelectric vibration element 130 that is a component element mainly includes, for example, a piezoelectric piece 131, an excitation electrode 132, and a lead-out electrode 133.

圧電片131は、例えば、圧電材料が用いられ、矩形形状の平板状に設けられている。   The piezoelectric piece 131 is made of, for example, a piezoelectric material and is provided in a rectangular flat plate shape.

励振電極132は、例えば、2つ一対となっている。
一方の励振電極132は、圧電片131の一方の主面に設けられている。また、他方の励振電極132は、圧電片131の他方の主面であって一方の励振電極132と対向する位置に設けられている。
For example, two excitation electrodes 132 are paired.
One excitation electrode 132 is provided on one main surface of the piezoelectric piece 131. The other excitation electrode 132 is provided on the other main surface of the piezoelectric piece 131 at a position facing the one excitation electrode 132.

引き回し電極133は、例えば、2つ一対となっている。
一方の引き回し電極133は、一方の端部が一方の励振電極132と接続されており、他方の端部が圧電片131の他方の主面であって圧電片131の一方の短辺側に位置するように設けられている。また、他方の引き回し電極133は、一方の端部が他方の励振電極132と接続されており、他方の端部が圧電片131の一方の主面であって圧電片131の一方の短辺側に位置するように設けられている。
The routing electrodes 133 are, for example, a pair of two.
One routing electrode 133 has one end connected to one excitation electrode 132, and the other end is the other main surface of the piezoelectric piece 131 and is positioned on one short side of the piezoelectric piece 131. It is provided to do. The other routing electrode 133 has one end connected to the other excitation electrode 132, the other end being one main surface of the piezoelectric piece 131, and one short side of the piezoelectric piece 131. It is provided so that it may be located in.

素子搭載部材120は、例えば、セラミックが用いられ、矩形形状の平板状に設けられている。
また、素子搭載部材120は、一方の主面に2つ一対の搭載端子Pが設けられており、他方の主面に複数の外部端子Gが設けられている。また、素子搭載部材120は、例えば、他方の主面の縁に沿って素子搭載部材接合用膜121が設けられている。
The element mounting member 120 is made of, for example, ceramic and is provided in a rectangular flat plate shape.
The element mounting member 120 has two pairs of mounting terminals P on one main surface and a plurality of external terminals G on the other main surface. In addition, the element mounting member 120 is provided with, for example, an element mounting member bonding film 121 along the edge of the other main surface.

搭載端子Pは、例えば、素子搭載部材120の一方の主面であって一方の短辺側に沿って2つ並んで設けられている。
外部端子Gは、例えば、素子搭載部材120の他方の主面の4隅に一つずつ設けられている。所定の外部端子Gと所定の搭載端子Pとは、電気的に接続された状態となっている。
素子搭載部材接合用膜121は、素子搭載部材120の一方の主面の縁に沿って環状に設けられている。また、素子搭載部材接合用膜121は、素子搭載部材120と後述する蓋部材110とを接合させるために設けられている。
For example, two mounting terminals P are provided side by side along one short side of the main surface of the element mounting member 120.
For example, one external terminal G is provided at each of the four corners of the other main surface of the element mounting member 120. The predetermined external terminal G and the predetermined mounting terminal P are in an electrically connected state.
The element mounting member bonding film 121 is provided in an annular shape along the edge of one main surface of the element mounting member 120. The element mounting member bonding film 121 is provided to bond the element mounting member 120 and a lid member 110 described later.

素子搭載部材120は、2つ一対の搭載端子Pと圧電振動素子130の引き回し電極133とが、例えば、導電性接着剤Dにより電気的に接続された状態で固定することにより、圧電振動素子130が搭載された状態となる。   The element mounting member 120 is fixed in a state in which the two pairs of mounting terminals P and the lead-out electrode 133 of the piezoelectric vibration element 130 are electrically connected by, for example, the conductive adhesive D, whereby the piezoelectric vibration element 130 is fixed. Will be installed.

蓋部材110は、例えば、鉄とニッケルとコバルトの合金等からなる金属が用いられている。
また、蓋部材110は、酸化されにくい酸化防止膜(図示せず)が全面に設けられている。
また、蓋部材110は、フォトリソグラフィ技術とエッチング技術とによって、図1に示すように、一方の主面に部品素子用凹部空間113が設けられている。また、蓋部材110は、例えば、一方の主面の縁に沿って環状の蓋部材接合用膜114が設けられている。
また、蓋部材110は、図1に示すように、基板部111と枠部112とから主に構成されている。
For the lid member 110, for example, a metal made of an alloy of iron, nickel, and cobalt is used.
Further, the lid member 110 is provided with an anti-oxidation film (not shown) which is not easily oxidized on the entire surface.
Further, as shown in FIG. 1, the lid member 110 is provided with a component element recess space 113 on one main surface by a photolithography technique and an etching technique. Further, the lid member 110 is provided with, for example, an annular lid member bonding film 114 along the edge of one main surface.
Moreover, the cover member 110 is mainly comprised from the board | substrate part 111 and the frame part 112, as shown in FIG.

基板部111は、例えば、鉄とニッケルとコバルトの合金等からなる金属が用いられている。
また、基板部111は、例えば、矩形形状の平板状に設けられている。
For example, a metal made of an alloy of iron, nickel, and cobalt is used for the substrate portion 111.
Moreover, the board | substrate part 111 is provided in the rectangular-shaped flat plate shape, for example.

枠部112は、例えば、鉄とニッケルとコバルトの合金等からなる金属が用いられている。
また、枠部112は、中央部に貫通する矩形形状の孔が設けられた枠形状の平板状に設けられている。
また、枠部112は、図1に示すように、基板部111の一方の主面の縁に沿って設けられている。
また、枠部112は、基板部111と接している面及び基板部111と接している面に対向する面が平坦となっている。
For the frame portion 112, for example, a metal made of an alloy of iron, nickel, and cobalt is used.
Further, the frame portion 112 is provided in a frame-shaped flat plate shape in which a rectangular hole penetrating the center portion is provided.
Moreover, the frame part 112 is provided along the edge of one main surface of the board | substrate part 111, as shown in FIG.
Further, the frame portion 112 has a flat surface in contact with the substrate portion 111 and a surface facing the surface in contact with the substrate portion 111.

つまり、蓋部材110は、基板部111の一方の主面に枠部112が設けられて部品素子用凹部空間113が設けられている。
ここで、蓋部材110の一方の主面は、基板部111と枠部112とが接触している面に対向する枠部112の主面、つまり、部品素子用凹部空間113が設けられている主面とする。
また、蓋部110材の他方の主面は、基板部111と枠部112とが接触している面に対向する基板部111の面、つまり、基板部111の他方の主面とする。
That is, the lid member 110 is provided with the frame portion 112 on one main surface of the substrate portion 111 and the component element recessed space 113.
Here, one main surface of the lid member 110 is provided with a main surface of the frame portion 112 facing the surface where the substrate portion 111 and the frame portion 112 are in contact, that is, a component element recess space 113. The main surface.
Further, the other main surface of the lid 110 material is a surface of the substrate portion 111 facing the surface where the substrate portion 111 and the frame portion 112 are in contact, that is, the other main surface of the substrate portion 111.

蓋部材接合用膜114は、基板部111と枠部112とが接触している面に対向する枠部112の主面、つまり、蓋部材110の一方の主面の縁に沿って環状に設けられている。
また、蓋部材接合用膜114は、素子搭載部材120に設けられる素子搭載部材接合用膜121と対向する位置に設けられている。
また、蓋部材接合用膜114は、素子搭載部材接合用膜121と重ね合わされた状態で溶融されることで、蓋部材110と素子搭載部材120とを接合させる役割を果たす。
The lid member bonding film 114 is provided in an annular shape along the main surface of the frame portion 112 facing the surface where the substrate portion 111 and the frame portion 112 are in contact, that is, the edge of one main surface of the lid member 110. It has been.
The lid member bonding film 114 is provided at a position facing the element mounting member bonding film 121 provided on the element mounting member 120.
In addition, the lid member bonding film 114 serves to bond the lid member 110 and the element mounting member 120 by being melted in a state of being overlapped with the element mounting member bonding film 121.

蓋部材110は、基板部111と枠部112とから主に構成されており、基板部111と枠部112とによって部品素子用凹部空間113が設けられている。
また、蓋部材110は、素子搭載部材120に設けられた素子搭載部材接合用膜121と蓋部材接合用膜114とが重ね合わされて溶融されることで素子搭載部材120と接合される。
また、蓋部材110は、一方の主面が素子搭載部材120の一方の主面と接合されることで、一方の主面に設けられた部品素子用凹部空間113内に素子搭載部材120に搭載されている圧電振動素子130を気密封止した状態となる。
The lid member 110 is mainly composed of a substrate portion 111 and a frame portion 112, and a component element recessed space 113 is provided by the substrate portion 111 and the frame portion 112.
The lid member 110 is bonded to the element mounting member 120 by overlapping and melting the element mounting member bonding film 121 provided on the element mounting member 120 and the lid member bonding film 114.
The lid member 110 is mounted on the element mounting member 120 in the component element recessed space 113 provided on one main surface by joining one main surface of the lid member 110 to one main surface of the element mounting member 120. Thus, the piezoelectric vibration element 130 is hermetically sealed.

このような本発明の第一の実施形態に係る蓋部材110は、基板部111と枠部112とから構成されており、基板部111と枠部112とが一体的に形成されて部品素子用凹部空間113が設けられている。
つまり、このような本発明の第一の実施形態に係る蓋部材110は、基板部111と枠部112とが接している面に対向する枠部112の面と素子搭載部材120を接合することができる形状となっている。
従って、このような本発明の第一の実施形態に係る蓋部材110は、従来の蓋部材のように鍔部を設ける必要がないので、従来の蓋部材と比較して部品素子用凹部空間113を広げることができる。
Such a lid member 110 according to the first embodiment of the present invention includes a substrate part 111 and a frame part 112, and the substrate part 111 and the frame part 112 are integrally formed for a component element. A recessed space 113 is provided.
That is, the lid member 110 according to the first embodiment of the present invention joins the element mounting member 120 to the surface of the frame portion 112 facing the surface where the substrate portion 111 and the frame portion 112 are in contact. It is a shape that can be.
Accordingly, the lid member 110 according to the first embodiment of the present invention does not need to be provided with a collar portion unlike the conventional lid member, and therefore, the component element recessed space 113 as compared with the conventional lid member. Can be spread.

次に本発明の第一の実施形態に係る第一の実施形態に係る蓋部材の製造方法について説明する。
本発明の第一の実施形態に係る蓋部材の製造方法は、蓋部材ウエハW110を蓋部材110となる部分ごとに個片化している。
従って、まず、本発明の第一の実施形態に係る蓋部材ウエハの製造方法について説明する。
Next, the manufacturing method of the cover member which concerns on 1st embodiment which concerns on 1st embodiment of this invention is demonstrated.
In the method for manufacturing a lid member according to the first embodiment of the present invention, the lid member wafer W110 is separated into pieces for each portion to be the lid member 110.
Therefore, first, the manufacturing method of the lid member wafer according to the first embodiment of the present invention will be described.

蓋部材ウエハの製造方法は、レジスト付着工程、第一のレジスト除去工程、部品素子用凹部空間形成工程、全レジスト除去工程を含んでいる。
ここで、蓋部材ウエハの製造方法は、例えば、レジスト付着工程、第一のレジスト除去工程、部品素子用凹部空間形成工程、全レジスト除去工程、酸化防止膜形成工程、蓋部材接合膜形成工程を含んで構成されている。
The manufacturing method of the lid member wafer includes a resist attaching step, a first resist removing step, a component element recess space forming step, and a total resist removing step.
Here, the manufacturing method of the lid member wafer includes, for example, a resist attaching step, a first resist removing step, a component element recess space forming step, an all resist removing step, an antioxidant film forming step, and a lid member bonding film forming step. It is configured to include.

(レジスト付着工程)
レジスト付着工程は、複数の蓋部材110となる部分が設けられている金属からなる蓋部材ウエハW110の両主面にレジストR1,R2を付着させる工程である。
(Resist adhesion process)
The resist attaching step is a step of attaching the resists R1 and R2 to both main surfaces of the lid member wafer W110 made of metal provided with the portions to be the plurality of lid members 110.

蓋部材ウエハW110は、金属が用いられる。ここで、蓋部材ウエハW110は、例えば、鉄とニッケルとコバルトの合金が用いられている。
また、蓋部材ウエハW110は、例えば、矩形形状の平板状となっている。また、蓋部材ウエハW110は、その厚みが蓋部材の高さとなっている。また、蓋部材ウエハW110は、複数の蓋部材110となる部分が行列状に設けられる。
また、蓋部材ウエハW110は、その両主面が平坦となっている。
レジスト付着工程前の蓋部材ウエハW110の状態の一例を図2(a)に示す。
The lid member wafer W110 is made of metal. Here, for example, an alloy of iron, nickel, and cobalt is used for the lid member wafer W110.
Further, the lid member wafer W110 has, for example, a rectangular flat plate shape. Further, the thickness of the lid member wafer W110 is the height of the lid member. In addition, the lid member wafer W110 is provided with a plurality of portions to be the lid members 110 in a matrix.
Further, both main surfaces of the lid member wafer W110 are flat.
An example of the state of the lid member wafer W110 before the resist attaching step is shown in FIG.

レジストR1,R2は、例えば、光が照射されることによって硬化する。
レジストR1は、厚みが均一になるように蓋部材ウエハW110の一方の主面に設けられる。また、レジストR2は、厚みが均一になるように蓋部材ウエハW110の他方の主面に設けられる。
For example, the resists R1 and R2 are cured when irradiated with light.
The resist R1 is provided on one main surface of the lid member wafer W110 so as to have a uniform thickness. The resist R2 is provided on the other main surface of the lid member wafer W110 so that the thickness is uniform.

レジスト付着工程では、図2(b)に示すように、光が照射されることによって硬化するレジストR1,R2が蓋部材ウエハW110の両主面に厚みが均一となるように設けられる。   In the resist attaching step, as shown in FIG. 2B, resists R1 and R2 that are cured by irradiation with light are provided on both main surfaces of the lid member wafer W110 so as to have a uniform thickness.

(第一のレジスト除去工程)
第一のレジスト除去工程は、図2(c)に示すように、それぞれの前記蓋部材110となる部分の一方の主面であって部品素子用凹部空間113の開口部と重なる部分の前記レジストR1を除去する工程である。
(First resist removal process)
In the first resist removing step, as shown in FIG. 2C, the resist in a portion of one main surface of the portion that becomes the lid member 110 and the opening of the concave portion 113 for component elements. This is a step of removing R1.

ここで、部品素子用凹部空間113は、例えば、それぞれの蓋部材110となる部分の一方の主面の中央部に設けられる。   Here, the component element recess space 113 is provided, for example, in the central portion of one main surface of the portion to be the lid member 110.

第一のレジスト除去工程では、フォトリソグラフィ技術が用いられる。
第一のレジスト除去工程では、例えば、部品素子用凹部空間113の開口部と重なる位置のレジストR1に光が照射されない様にマスキングをして部品素子用凹部空間113の開口部と重ならない位置のレジストR1,R2を硬化させ、硬化されていないレジストR1、つまり、部品素子用凹部空間113の開口部と重なる位置のレジストR1を除去する。
従って、第一のレジスト除去工程では、蓋部材ウエハW110がそれぞれの蓋部材110となる部分の部品素子用凹部空間313の開口部と重なる位置のレジストR1が除去された状態となっている。
In the first resist removal step, a photolithography technique is used.
In the first resist removing process, for example, masking is performed so that light is not irradiated to the resist R1 at a position overlapping the opening of the component element recess space 113, and the resist R1 at a position not overlapping the opening of the component element recess space 113 is formed. The resists R1 and R2 are cured, and the uncured resist R1, that is, the resist R1 at a position overlapping the opening of the component element recess space 113 is removed.
Therefore, in the first resist removing step, the resist R1 is removed at a position where the lid member wafer W110 overlaps the opening of the component element recess space 313 where the lid member wafer 110 is to be the lid member 110.

(部品素子用凹部空間形成工程)
部品素子用凹部空間形成工程は、図2(d)に示すように、エッチング技術を用いてそれぞれの前記蓋部材110となる部分に前記部品素子用凹部空間113を設ける
工程である。
(Recessed space forming process for component elements)
The component element recess space forming step is a step of providing the component element recess space 113 in each of the portions to be the lid members 110 by using an etching technique, as shown in FIG.

部品素子用凹部空間113は、部品素子130が搭載されている素子搭載部材120と蓋部材110とが接合されたときに、その内部に部品素子130が気密封止させることができる大きさとなっている。   The component element recess space 113 has a size that allows the component element 130 to be hermetically sealed when the element mounting member 120 on which the component element 130 is mounted and the lid member 110 are joined. Yes.

部品素子用凹部空間形成工程では、エッチング技術が用いられる。
部品素子用凹部空間形成工程では、例えば、部品素子用凹部空間113の開口部と重なる部分の位置のレジストR1が除去されている蓋部材ウエハW110が腐食液に浸漬されて、レジストR1で保護されていない部品素子用凹部空間113の開口部が腐食されて、部品素子用凹部空間113が設けられる。
つまり、部品素子用凹部空間形成工程では、エッチング技術によって、それぞれの蓋部材110となる部分の部品素子用凹部空間113の開口部から腐食されて、基板部111と枠部112となる部分が一体的に形成された部品素子用凹部空間113が設けられる。
従って、硬化したレジストR1,R2が残っている部分、つまり、部品素子用凹部空間113の開口部の他の面は腐食されないので、基板部111と枠部112とが接触している面に対向する枠部112の主面、つまり、蓋部材110の一方の主面が平坦となっている。
つまり、基板部111と枠部112とが接触している面に対向する枠部112の主面が素子搭載部材120の一方の主面と接合されることとなる。
In the component element recess space forming step, an etching technique is used.
In the component element recess space forming step, for example, the lid member wafer W110 from which the resist R1 at the position overlapping the opening of the component element recess space 113 is removed is immersed in a corrosive solution and protected by the resist R1. The part element recess space 113 is corroded to provide the component element recess space 113.
That is, in the component element recess space forming step, the portions that become the respective cover members 110 are eroded from the openings of the component element recess spaces 113 by the etching technique, and the portions that become the substrate portion 111 and the frame portion 112 are integrated. A component element recess space 113 is provided.
Accordingly, the portion where the cured resists R1 and R2 remain, that is, the other surface of the opening of the component element recess space 113 is not corroded, so that it faces the surface where the substrate portion 111 and the frame portion 112 are in contact with each other. The main surface of the frame part 112 to be performed, that is, one main surface of the lid member 110 is flat.
That is, the main surface of the frame portion 112 facing the surface where the substrate portion 111 and the frame portion 112 are in contact with each other is joined to one main surface of the element mounting member 120.

(全レジスト除去工程)
全レジスト除去工程は、図2(e)に示すように、前記蓋部材ウエハW110に付着している前記レジストR1,R2を全て除去する工程である。
全レジスト除去工程では、部品素子用凹部空間113の開口部と重ならない位置に設けられている硬化しているレジストR1,R2を除去している。
(All resist removal process)
As shown in FIG. 2E, the all resist removing step is a step of removing all the resists R1 and R2 adhering to the lid member wafer W110.
In the entire resist removing process, the hardened resists R1 and R2 provided at positions that do not overlap with the openings of the component element recess space 113 are removed.

(酸化防止膜形成工程)
酸化防止膜形成工程は、蓋部材ウエハW110の両主面に酸化防止膜(図示せず)を設ける工程である。
酸化防止膜は、酸化されにくい材質が用いられる。ここで酸化防止膜は、例えば、ニッケルが用いられる。
また、酸化防止膜は、蓋部材110が酸化されることを防ぐために、例えば、スパッタを用いて、蓋部材ウエハW110のそれぞれの蓋部材110となる部分の両主面に設けられる。
(Antioxidation film forming process)
The antioxidant film forming step is a step of providing an antioxidant film (not shown) on both main surfaces of the lid member wafer W110.
A material that is not easily oxidized is used for the antioxidant film. Here, for example, nickel is used for the antioxidant film.
Further, in order to prevent the lid member 110 from being oxidized, the antioxidant film is provided on both main surfaces of the portions to be the lid members 110 of the lid member wafer W110 by using, for example, sputtering.

なお、酸化防止膜形がスパッタを用いて設けている場合について説明しているが、酸化防止膜を設けることができれば、蒸着機やめっき法を用いてもよい。   In addition, although the case where the antioxidant film type is provided by sputtering is described, a vapor deposition machine or a plating method may be used as long as the antioxidant film can be provided.

なお、蓋部材ウエハW110が酸化しやすい鉄とニッケルとコバルトの合金からなる場合について説明しているが、蓋部材ウエハW110が酸化しにくい場合、例えば、ニッケルとコバルトの合金が用いられる場合には酸化膜形成工程を行わなくてもよい。   The case where the lid member wafer W110 is made of an easily oxidized iron, nickel, and cobalt alloy is described. However, when the lid member wafer W110 is difficult to oxidize, for example, when an alloy of nickel and cobalt is used. The oxide film forming step may not be performed.

(蓋部材接合用膜形成工程)
蓋部材接合用膜形成工程は、蓋部材ウエハW110の蓋部材110となる部分の一方に蓋部材接合用膜114(図1参照)を設ける工程である。
蓋部材接合用膜114は、蓋部材ウエハW110の蓋部材110となる部分の一方の主面の縁部に沿って環状に設けられる。
また、蓋部材接合用膜114は、素子搭載部材120に設けられる素子搭載部材接合膜121と重ね合わされた状態で溶融されることで、蓋部材110と素子搭載部材120とを接合させる役割を果たす。
蓋部材接合用膜形成工程では、例えば、めっき法が用いられる。
(Film forming process for lid member bonding)
The lid member bonding film forming step is a step of providing the lid member bonding film 114 (see FIG. 1) on one of the portions to be the lid member 110 of the lid member wafer W110.
The lid member bonding film 114 is provided in an annular shape along the edge of one main surface of the portion that becomes the lid member 110 of the lid member wafer W110.
In addition, the lid member bonding film 114 is melted in a state of being overlapped with the element mounting member bonding film 121 provided on the element mounting member 120, thereby joining the lid member 110 and the element mounting member 120. .
In the lid member bonding film forming step, for example, a plating method is used.

なお、蓋部材接合用膜形成工程ではめっき法により蓋部材接合用膜114を設ける場合について説明しているが、例えば、スパッタ、蒸着機、ロウ材を付着させる等の方法を用いてもよい。   In the lid member bonding film forming step, the case where the lid member bonding film 114 is provided by plating is described. However, for example, a method such as sputtering, vapor deposition, or attachment of a brazing material may be used.

なお、蓋部材接合用膜形成工程は、蓋部材接合用膜114を設ける必要がない場合、例えば、接着剤により接合する場合、行われない。   Note that the lid member bonding film forming step is not performed when the lid member bonding film 114 does not need to be provided, for example, when bonding with an adhesive.

このようにして、本発明の第一の実施形態に係る蓋部材ウエハの製造方法により蓋部材ウエハW110が製造される。
このような本発明の第一の実施形態に係る蓋部材ウエハの製造方法は、レジストR1,R2を付着させて部品素子用凹部空間113の開口部と重なる位置のレジストR1を除去しエッチング技術を用いて部品素子用凹部空間113を設けている。
このため、このような本発明の第一の実施形態に係る蓋部材ウエハの製造方法は、従来の蓋部材ウエハの製造方法のように圧力による蓋部材ウエハW110内の部品素子用凹部空間113の大きさのばらつきを抑えることができ生産性を向上させることができる。
Thus, the lid member wafer W110 is manufactured by the lid member wafer manufacturing method according to the first embodiment of the present invention.
Such a manufacturing method of the lid member wafer according to the first embodiment of the present invention removes the resist R1 at a position overlapping with the opening of the component element recess space 113 by attaching the resists R1 and R2, and performs an etching technique. The component element recess space 113 is provided.
For this reason, the lid member wafer manufacturing method according to the first embodiment of the present invention as described above includes the component element recess space 113 in the lid member wafer W110 by pressure as in the conventional lid member wafer manufacturing method. Variations in size can be suppressed and productivity can be improved.

また、このような本発明の第一の実施形態に係る蓋部材ウエハの製造方法は、フォトリソグラフィ技術とエッチング技術とによりそれぞれの蓋部材110となる部分に部品素子用凹部空間113が設けられているので、従来の蓋部材ウエハの製造方法のように隣接する蓋部材110となる部分の距離を決めるときに部品素子用凹部空間113の側面部分の面積を考慮する必要がないので、蓋部材ウエハW110内に蓋部材110となる部分の取り数を増やすことができる。このため、このような本発明の第一の実施形態に係る蓋部材ウエハの製造方法は、生産性を向上させることができる。   Further, in the method of manufacturing the lid member wafer according to the first embodiment of the present invention, the component element recess space 113 is provided in the portion to become the lid member 110 by the photolithography technique and the etching technique. Therefore, it is not necessary to consider the area of the side surface portion of the component element recess space 113 when determining the distance between the adjacent portions of the lid member 110 as in the conventional lid member wafer manufacturing method. The number of parts to be the lid member 110 in W110 can be increased. For this reason, the manufacturing method of the lid member wafer according to the first embodiment of the present invention can improve productivity.

(個片化工程)
本発明の第一の実施形態に係る蓋部材の製造方法は、個片化工程を含んでいる。
個片化工程は、蓋部材ウエハW110を前記蓋部材110となる部分ごとに個片化する工程である。
個片化工程では、例えば、ワイヤソーが用いられる。
(Individualization process)
The method for manufacturing a lid member according to the first embodiment of the present invention includes an individualization step.
The singulation step is a step of dividing the lid member wafer W110 into pieces for each portion to be the lid member 110.
In the individualizing step, for example, a wire saw is used.

なお、個片化工程では、ワイヤソーが用いられて個片化されている場合について説明しているが、例えば、プレス機械、ダイシング装置等を用いて個片化してもよい。   In addition, although the case where the wire saw is used and separated into pieces is described in the individualization step, the individual pieces may be separated using, for example, a press machine or a dicing apparatus.

なお、個片化工程では、ワイヤソーが用いられて個片化されている場合について説明しているが、例えば、フォトリソグラフィ技術とエッチング技術を用いて個片化してもよい。   In addition, although the case where the wire saw is used and separated into pieces is described in the individualization step, for example, the pieces may be separated using a photolithography technique and an etching technique.

このような本発明の第一の実施形態に係る蓋部材の製造方法は、レジストR1,R2を付着させ部品素子用凹部空間113の開口部と重なる位置のレジストR1を除去し、エッチング技術を用いて部品素子用凹部空間113を設けた蓋部材ウエハW110を個片化して設けている。
このため、このような本発明の第一の実施形態に係る蓋部材の製造方法は、従来の蓋部材の製造方法と比較して部品素子用凹部空間113の大きさのばらつきを抑えることができるので生産性を向上させることができる。
Such a manufacturing method of the lid member according to the first embodiment of the present invention uses the etching technique by attaching the resists R1 and R2 and removing the resist R1 at the position overlapping the opening of the component element recess space 113. The lid member wafer W110 provided with the component element recess space 113 is provided as a single piece.
For this reason, the lid member manufacturing method according to the first embodiment of the present invention can suppress the variation in the size of the component element recess space 113 as compared with the conventional lid member manufacturing method. So productivity can be improved.

このような本発明の第一の実施形態に係る蓋部材の製造方法は、フォトリソグラフィ技術とエッチング技術とにより、それぞれの蓋部材110となる部分に部品素子用凹部空間113が設けられている。
このため。このような本発明の第一の実施形態に係る蓋部材の製造方法は、従来の蓋部材の製造方法のような金型が不要となり、基板部111の厚みや蓋部材110の主面と平行な主面の枠部112の厚みを容易に変更することができ、蓋部材110の強度を上げることができ生産性を向上させることができる。
In the lid member manufacturing method according to the first embodiment of the present invention, the component element recessed spaces 113 are provided in the portions to be the lid members 110 by the photolithography technique and the etching technique.
For this reason. The lid member manufacturing method according to the first embodiment of the present invention does not require a mold as in the conventional lid member manufacturing method, and is parallel to the thickness of the substrate portion 111 and the main surface of the lid member 110. The thickness of the main surface frame portion 112 can be easily changed, the strength of the lid member 110 can be increased, and the productivity can be improved.

(第二の実形態)
本発明の第二の実施形態に係る蓋部材について説明する。
本発明の第二の実施形態に係る蓋部材210は、図3に示すように、部品素子用凹部空間213の底面と対向する基板部211の他方の主面に環状の溝部215が設けられている第一の実施形態と異なる。
(Second form)
A lid member according to a second embodiment of the present invention will be described.
As shown in FIG. 3, the lid member 210 according to the second embodiment of the present invention is provided with an annular groove portion 215 on the other main surface of the substrate portion 211 facing the bottom surface of the component element recess space 213. Different from the first embodiment.

蓋部材210は、素子搭載部材120に搭載されている部品素子130を気密封止する役割を果たす。つまり、蓋部材210は、部品素子130が素子搭載部材120と接合されて部品素子130が気密封止される電子部品200に用いられる。
ここで電子部品200が、例えば、部品素子130が圧電振動素子130であり、また、圧電デバイス200が圧電振動子200の場合について説明する。
圧電振動子200は、図3に示すように、部品素子である圧電振動素子130と素子搭載部材120と蓋部材210とから主に構成されている。
The lid member 210 serves to hermetically seal the component element 130 mounted on the element mounting member 120. That is, the lid member 210 is used for the electronic component 200 in which the component element 130 is joined to the element mounting member 120 and the component element 130 is hermetically sealed.
Here, the case where the electronic component 200 is, for example, the component element 130 is the piezoelectric vibrating element 130 and the piezoelectric device 200 is the piezoelectric vibrator 200 will be described.
As shown in FIG. 3, the piezoelectric vibrator 200 mainly includes a piezoelectric vibration element 130 that is a component element, an element mounting member 120, and a lid member 210.

蓋部材210は、金属が用いられている。ここで、蓋部材210は、例えば、鉄とニッケルとコバルトの合金が用いられている。
また、蓋部材210は、酸化されにくい酸化防止膜(図示せず)が全面に設けられている。また、蓋部材210は、フォトリソグラフィ技術とエッチング技術とによって、図3に示すように、一方の主面に部品素子用凹部空間213が設けられている。また、蓋部材210は、フォトリソグラフィ技術とエッチング技術とによって、図3に示すように、他方の主面に環状の溝部215が設けられている。 また、蓋部材210は、一方の主面の縁に沿って環状の蓋部材接合膜214が設けられている。
蓋部材210は、図3に示すように、基板部211と枠部212とから主に構成されている。
The lid member 210 is made of metal. Here, for example, an alloy of iron, nickel, and cobalt is used for the lid member 210.
Further, the lid member 210 is provided with an antioxidant film (not shown) which is difficult to be oxidized on the entire surface. In addition, as shown in FIG. 3, the lid member 210 is provided with a component element recess space 213 on one main surface by photolithography and etching techniques. Further, the lid member 210 is provided with an annular groove 215 on the other main surface as shown in FIG. 3 by a photolithography technique and an etching technique. Further, the lid member 210 is provided with an annular lid member bonding film 214 along the edge of one main surface.
As shown in FIG. 3, the lid member 210 is mainly composed of a substrate portion 211 and a frame portion 212.

基板部211は、金属からなっている。ここで、基板部211は、例えば、鉄とニッケルとコバルトの合金からなっている。
また、基板部211は、例えば、矩形形状の平板状に設けられている。
また、基板部211は、一方の主面に後述する枠部212が設けられている。また、基板部211は、他方の主面に後述する溝部215が設けられている。
The substrate unit 211 is made of metal. Here, the board | substrate part 211 consists of an alloy of iron, nickel, and cobalt, for example.
Moreover, the board | substrate part 211 is provided in the rectangular flat plate shape, for example.
In addition, the substrate portion 211 is provided with a frame portion 212 to be described later on one main surface. Further, the substrate part 211 is provided with a groove part 215 to be described later on the other main surface.

枠部212は、金属からなっている。ここで、枠部212は、例えば、鉄とニッケルとコバルトの合金からなっている。
また、枠部212は、枠形状の平板状に設けられており、中央部に貫通する矩形形状の孔が設けられている。
また、枠部212は、基板部211の一方の主面の縁に沿って設けられている。
The frame part 212 is made of metal. Here, the frame portion 212 is made of, for example, an alloy of iron, nickel, and cobalt.
Moreover, the frame part 212 is provided in the frame-shaped flat plate shape, and the rectangular hole penetrated in the center part is provided.
The frame portion 212 is provided along the edge of one main surface of the substrate portion 211.

つまり、蓋部材210は、図3に示すように、基板部211の一方の主面に枠部212が設けられて、蓋部材210の一方の主面に部品素子用凹部空間213が設けられている。
また、蓋部材210は、基板部211の他方の主面の溝部215が部品素子用凹部空間213の底面と対向する位置に環状に設けられている。
In other words, as shown in FIG. 3, the lid member 210 has a frame portion 212 provided on one main surface of the substrate portion 211 and a component element recessed space 213 provided on one main surface of the lid member 210. Yes.
Further, the lid member 210 is provided in an annular shape at a position where the groove portion 215 on the other main surface of the substrate portion 211 faces the bottom surface of the component element recess space 213.

なお、ここでは、基板部211の溝部215が部品素子用凹部空間213の底面と対向する位置に環状に設けられている場合について説明しているが、溝部215の幅を広げて部品素子用凹部空間213の底面と対向する面を全て1つの溝部215としてもよい。   Here, the case where the groove portion 215 of the substrate portion 211 is provided in an annular shape at a position facing the bottom surface of the component element recess space 213 has been described. The entire surface facing the bottom surface of the space 213 may be a single groove portion 215.

ここで、蓋部材210の一方の主面は、基板部211と枠部212とが接触している面に対向する枠部212の主面、つまり、部品素子用凹部空間213が設けられている主面とする。
また、蓋部材210の他方の主面は、基板部211と枠部212とが接触している面に対向する基板部211の面、つまり、環状の溝部215が設けられている主面とする。
Here, one main surface of the lid member 210 is provided with a main surface of the frame portion 212 that faces the surface where the substrate portion 211 and the frame portion 212 are in contact, that is, a component element recess space 213. The main surface.
Further, the other main surface of the lid member 210 is a surface of the substrate portion 211 facing the surface where the substrate portion 211 and the frame portion 212 are in contact, that is, a main surface on which the annular groove portion 215 is provided. .

蓋部材接合用膜214は、基板部211と枠部212とが接触している面に対向する枠部212の主面、つまり、蓋部材210の一方の主面の縁に沿って環状に設けられている。
また、蓋部材接合用膜214は、素子搭載部材120に設けられる素子搭載部材接合用膜121と対向する位置に設けられている。
また、蓋部材接合用膜214は、素子搭載部材接合用膜121と重ね合わされた状態で溶融されることで、蓋部材210と素子搭載部材120とを接合させる役割を果たす。
The lid member bonding film 214 is provided in an annular shape along the main surface of the frame portion 212 facing the surface where the substrate portion 211 and the frame portion 212 are in contact, that is, the edge of one main surface of the lid member 210. It has been.
The lid member bonding film 214 is provided at a position facing the element mounting member bonding film 121 provided on the element mounting member 120.
Further, the lid member bonding film 214 plays a role of bonding the lid member 210 and the element mounting member 120 by being melted in a state of being overlapped with the element mounting member bonding film 121.

蓋部材210は、基板部211と枠部212とから主に構成されており、基板部211と枠部212とによって部品素子用凹部空間213が設けられている。
また、蓋部材210は、素子搭載部材120に設けられた素子搭載部材接合用膜121と蓋部材接合用膜214とが重ね合わされて溶融されることで素子搭載部材120と接合される。
また、蓋部材210は、素子搭載部材120と接合されることで一方の主面に設けられた部品素子用凹部空間213内に素子搭載部材120に搭載されている圧電振動素子130を気密封止した状態となる。
The lid member 210 mainly includes a substrate portion 211 and a frame portion 212, and a component element recess space 213 is provided by the substrate portion 211 and the frame portion 212.
The lid member 210 is bonded to the element mounting member 120 by overlapping and melting the element mounting member bonding film 121 and the lid member bonding film 214 provided on the element mounting member 120.
In addition, the lid member 210 is hermetically sealed with the element mounting member 120 so as to hermetically seal the piezoelectric vibration element 130 mounted on the element mounting member 120 in the component element recessed space 213 provided on one main surface. It will be in the state.

このような本発明の第二の実施形態に係る蓋部材210は、基板部211と枠部212とから構成されており、基板部211と枠部212とが一体的に形成されて部品素子用凹部空間213が設けられているので、第一の実施形態と同様の効果を奏する。   Such a lid member 210 according to the second embodiment of the present invention includes a substrate portion 211 and a frame portion 212, and the substrate portion 211 and the frame portion 212 are integrally formed to be used for component elements. Since the recessed space 213 is provided, the same effects as in the first embodiment can be obtained.

このような本発明の第二の実施形態に係る蓋部材210は、部品素子用凹部空間213の底面と対向する基板部211の他方の主面に環状の溝部215が設けられている。
シーム溶接により蓋部材210と素子搭載部材120とを接合させる場合、このような蓋部材210は、セラミックと比較して導電性がより金属が用いられているが、蓋部材210の基板部211に溝部215を設けることで、部品素子用凹部空間213の底面と平行な向きに流れる電流、つまり、基板部211に流れる電流を、部品素子用凹部空間213の側面と平行な抜きに流れる電流、つまり、枠部212に流れる電流と比較して低減させることができる。
つまり、このような蓋部材210は、従来の蓋部材310と比較して蓋部材210の基板部211に流れる電流の量を低減させることができるので従来の蓋部材と比較して接合時の内部応力を低減させることができる。
In the lid member 210 according to the second embodiment of the present invention, an annular groove portion 215 is provided on the other main surface of the substrate portion 211 facing the bottom surface of the component element recess space 213.
When the lid member 210 and the element mounting member 120 are joined by seam welding, the lid member 210 is made of a metal that is more conductive than ceramics. By providing the groove 215, the current flowing in the direction parallel to the bottom surface of the component element recess space 213, that is, the current flowing in the substrate portion 211, the current flowing in parallel with the side surface of the component element recess space 213, that is, , The current flowing through the frame portion 212 can be reduced.
In other words, such a lid member 210 can reduce the amount of current flowing in the substrate portion 211 of the lid member 210 as compared with the conventional lid member 310, so that the inner portion at the time of joining compared to the conventional lid member 210 can be reduced. Stress can be reduced.

次に、本発明の第二の実施形態に係る蓋部材ウエハの製造方法について説明する。
本発明の第二の実施形態に係る蓋部材ウエハの製造方法は、溝部215を設けるために第二のレジスト除去工程と溝部形成工程とが含まれている点で第一の実施形態と異なる。
Next, a method for manufacturing a lid member wafer according to the second embodiment of the present invention will be described.
The manufacturing method of the lid member wafer according to the second embodiment of the present invention is different from the first embodiment in that a second resist removing process and a groove forming process are included in order to provide the groove 215.

第二のレジスト除去工程は、前記蓋部材ウエハW210のそれぞれの前記蓋部材210となる部分の他方の主面に設けられる溝部215の開口部と重なる部分のレジストR2を除去する工程である。
ここで、溝部215は、例えば、それぞれの蓋部材210となる部分であって、部品素子用凹部空間213の開口部と対向する蓋部材210となる部分の他方の主面に環状に設けられる。
The second resist removing step is a step of removing the resist R2 in a portion overlapping the opening of the groove portion 215 provided on the other main surface of the portion of the lid member wafer W210 that becomes the lid member 210.
Here, the groove portion 215 is provided in an annular shape on the other main surface of the portion that becomes the lid member 210 and that becomes the lid member 210 facing the opening of the component element recess space 213, for example.

第二のレジスト除去工程では、フォトリソグラフィ技術が用いられる。
第二のレジスト除去工程では、例えば、溝部215の開口部と重なる位置のレジストR2に光が照射されない様にマスキングをして溝部215の開口部と重ならない位置のレジストR2を硬化させ、硬化されていないレジストR2、つまり、溝部215の開口部と重なる位置のレジストR2を除去する。
従って、第二のレジスト除去工程では、図4(c)に示すように、蓋部材ウエハW210がそれぞれの蓋部材210となる部分の溝部215の開口部と重なる位置のレジストR2が除去された状態となっている。
In the second resist removal step, a photolithography technique is used.
In the second resist removing step, for example, the resist R2 at a position overlapping with the opening of the groove 215 is masked so that light is not irradiated, and the resist R2 at a position not overlapping with the opening of the groove 215 is cured and cured. The resist R2 that has not been removed, that is, the resist R2 that overlaps the opening of the groove 215 is removed.
Therefore, in the second resist removing step, as shown in FIG. 4C, the resist R2 at a position where the lid member wafer W210 overlaps the opening of the groove portion 215 of the portion serving as the lid member 210 is removed. It has become.

ここで、第二のレジスト除去工程は、例えば、第一のレジスト除去工程と同時に行われる。
このとき、両主面にレジストR1,R2が付着されている蓋部材ウエハW210の蓋部材210となる部分の部品素子用凹部空間213の開口部及び溝部215の開口部のレジストR1,R2が除去される。
Here, the second resist removing step is performed simultaneously with the first resist removing step, for example.
At this time, the resist R1 and R2 in the opening of the component element recess space 213 and the opening of the groove 215 in the part that becomes the lid member 210 of the lid member wafer W210 having the resists R1 and R2 attached to both main surfaces are removed. Is done.

溝部形成工程は、エッチング技術を用いて前記蓋部材210となる部分の他方の主面に溝部215を設ける工程である。
溝部形成工程では、例えば、溝部215の開口部と重なる部分の位置のレジストR2が除去されている蓋部材ウエハW210が腐食液に浸漬されて、レジストR2で保護されていない溝部215の開口部が腐食されて、溝部215が設けられる。
つまり、溝部形成工程では、図4(d)に示すように、エッチング技術によってそれぞれの蓋部材210となる部分の溝部215の開口部から腐食され溝部215が設けられる。
The groove portion forming step is a step of providing the groove portion 215 on the other main surface of the portion to be the lid member 210 using an etching technique.
In the groove portion forming step, for example, the lid member wafer W210 from which the resist R2 at a position overlapping the opening portion of the groove portion 215 is removed is immersed in a corrosive solution, and the opening portion of the groove portion 215 not protected by the resist R2 is formed. Corroded to provide a groove 215.
That is, in the groove portion forming step, as shown in FIG. 4D, the groove portions 215 are provided by being etched from the openings of the groove portions 215 at the portions that become the respective lid members 210 by the etching technique.

ここで、溝部形成工程は、例えば、部品素子用凹部形成工程と同時に行われる。
このとき、レジストR1,R2が付着されていない部品素子用凹部空間213の開口部及び溝部215の開口部が腐食されて、それぞれの蓋部材210となる部分に部品素子用凹部空間213及び溝部215が設けられる。
Here, the groove part forming step is performed simultaneously with, for example, the component element recess forming step.
At this time, the opening of the component element recess space 213 and the opening of the groove portion 215 to which the resists R1 and R2 are not attached are corroded, and the component element recess space 213 and the groove portion 215 are formed in the portions to be the lid members 210, respectively. Is provided.

なお、部品素子用凹部空間形成工程と溝部形成工程とを同時に行い部品素子用凹部空間213と溝部215とを同時に設けている場合ついて説明しているが、部品素子用凹部空間213を設けた蓋部材ウエハW210を用いて、レジスト付着工程、第二のレジスト除去工程、溝部形成工程、全レジスト除去工程の工程を経て蓋部材210となる部分に部品素子用凹部空間213と溝部215を別々に設けてもよい。   Note that the case where the component element recess space 213 and the groove portion 215 are provided simultaneously by performing the component element recess space formation step and the groove portion formation step at the same time has been described. However, the lid provided with the component element recess space 213 is described. By using the member wafer W210, the component element recess space 213 and the groove portion 215 are separately provided in the portion that becomes the lid member 210 through the resist attaching step, the second resist removing step, the groove forming step, and the entire resist removing step. May be.

このような、本発明の第二の実施形態に係る蓋部材ウエハの製造方法により、本発明の第二の実施形態に係る蓋部材となる部分210が複数、設けられた蓋部材ウエハW210が製造される。
このような本発明の第二の実施形態に係る蓋部材ウエハの製造方法は、レジストR1,R2を付着させ部品素子用凹部空間213の開口部と重なる位置のレジストR1を除去しエッチング技術を用いて部品素子用凹部空間213を設けているので、第一の実施形態に係る蓋部材ウエハの製造方法と同様の効果を奏する。
By such a method for manufacturing a lid member wafer according to the second embodiment of the present invention, a lid member wafer W210 provided with a plurality of portions 210 serving as a lid member according to the second embodiment of the present invention is manufactured. Is done.
In such a method of manufacturing a lid member wafer according to the second embodiment of the present invention, the resists R1 and R2 are attached, the resist R1 at a position overlapping the opening of the component element recess space 213 is removed, and an etching technique is used. Since the component element recess space 213 is provided, the same effects as those of the lid member wafer manufacturing method according to the first embodiment can be obtained.

このような本発明の第二の実施形態に係る蓋部材の製造方法は、レジストR1,R2を付着して部品素子用凹部空間213の開口部と重なる位置のレジストR1を除去し、エッチング技術を用いて部品素子用凹部空間213を設けた蓋部材ウエハW210を個片化して設けているので、第一の実施形態に係る蓋部材の製造方法と同様の効果を奏する。   In such a lid member manufacturing method according to the second embodiment of the present invention, the resist R1 and R2 are attached to remove the resist R1 at a position overlapping the opening of the component element recess space 213, and etching technology is used. Since the cover member wafer W210 provided with the component element recess space 213 is provided as a single piece, the same effects as those of the cover member manufacturing method according to the first embodiment can be obtained.

なお、部品素子が圧電振動素子である圧電振動子に蓋部材が用いられる場合について説明したが、素子搭載部材と蓋部材とが接合されることで素子搭載部材に搭載されている圧電振動素子を気密封止することができる圧電デバイスであれば、例えば、圧電振動素子と集積回路素子が素子搭載部材に搭載されている圧電発振器であってもよい。   The case where the lid member is used for the piezoelectric vibrator whose component element is a piezoelectric vibration element has been described. However, the piezoelectric vibration element mounted on the element mounting member is bonded by joining the element mounting member and the lid member. As long as the piezoelectric device can be hermetically sealed, for example, a piezoelectric oscillator in which a piezoelectric vibration element and an integrated circuit element are mounted on an element mounting member may be used.

なお、部品素子が圧電振動素子である圧電デバイスに蓋部材が用いられる場合について説明したが、素子搭載部材と蓋部材とが接合されることで素子搭載部材に搭載されている部品素子を気密封止することができる電子部品であれば、例えば、部品素子がチップコンデンサであってもよい。   In addition, although the case where a lid member is used for a piezoelectric device in which the component element is a piezoelectric vibration element has been described, the component element mounted on the element mounting member is hermetically sealed by joining the element mounting member and the lid member. As long as the electronic component can be stopped, for example, the component element may be a chip capacitor.

110,210,310 蓋部材
111,211,311 基板部
112,212,312a 枠部
312b 鍔部
113,213,313 部品素子用凹部空間
114,214,314 蓋部材接合用膜
215 溝部
120,320 素子搭載部材
121,321 素子搭載部材接合用膜
P 搭載端子
G 外部端子
130,330 圧電振動素子
131,331 圧電片
132,332 励振電極
133,333 引き回し電極
D 導電材料
R1,R2 レジスト
W110 蓋部材ウエハ
110, 210, 310 Lid member 1111, 211, 311 Substrate part 112, 212, 312a Frame part 312b Gutter part 113, 213, 313 Part element concave space 114, 214, 314 Lid member bonding film 215 Groove part 120, 320 element Mounting member 121, 321 Element mounting member bonding film P Mounting terminal G External terminal 130, 330 Piezoelectric vibration element 131, 331 Piezoelectric piece 132, 332 Excitation electrode 133, 333 Leading electrode D Conductive material R1, R2 Resist W110 Cover member wafer

Claims (2)

複数の蓋部材となる部分が設けられている金属からなる蓋部材ウエハの両主面にレジストを付着させるレジスト付着工程と、A resist attaching step of attaching a resist to both main surfaces of a lid member wafer made of metal provided with a portion to be a plurality of lid members;
それぞれの前記蓋部材となる部分の一方の主面であって部品素子用凹部空間の開口部と重なる部分の前記レジストを除去する第一のレジスト除去工程と、A first resist removing step of removing the resist in a portion of one main surface of each of the lid member portions and overlapping with the opening of the component element recess space;
前記蓋部材ウエハのそれぞれの前記蓋部材となる部分の他方の主面に設けられる溝部の開口部と重なる部分のレジストを除去する第二のレジスト除去工程と、A second resist removing step of removing a resist in a portion overlapping with an opening of a groove provided on the other main surface of the portion to be the lid member of each lid member wafer;
エッチング技術を用いてそれぞれの前記蓋部材となる部分に前記部品素子用凹部空間を設ける部品素子用凹部空間形成工程と、A component element recess space forming step of providing the component element recess space in each of the lid member portions using an etching technique;
エッチング技術を用いて前記蓋部材となる部分の他方の主面に溝部を設ける溝部形成工程と、A groove forming step of providing a groove on the other main surface of the portion that becomes the lid member using an etching technique;
前記蓋部材ウエハに付着している前記レジストを全て除去する全レジスト除去工程と、A total resist removing step of removing all the resist adhering to the lid member wafer;
を備えたことを特徴とする蓋部材ウエハの製造方法。A method for producing a lid member wafer, comprising:
請求項1に記載の蓋部材ウエハの製造方法により製造された前記蓋部材ウエハを前記蓋部材となる部分ごとに個片化する個片化工程を含むことを特徴とする蓋部材の製造方法。A method for manufacturing a lid member, comprising: a step of dividing the lid member wafer manufactured by the method for manufacturing a lid member wafer according to claim 1 into pieces for each portion to be the lid member.
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