JP3464137B2 - Electronic component storage package - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component housing package for hermetically housing electronic components such as semiconductor elements and piezoelectric vibrators.

[0002]

2. Description of the Related Art Conventionally, an electronic component housing package for housing a semiconductor element such as a semiconductor integrated circuit element or an electronic component such as a crystal resonator or a surface acoustic wave element such as a piezoelectric resonator is, for example, aluminum oxide. (Al ₂
O ₃ ), which is made of an electrically insulating material such as a sintered body, has a concave portion for accommodating electronic components in the substantially central portion of the upper surface or the lower surface thereof and is led out from the peripheral portion of the concave portion to the lower surface, such as tungsten or molyfden. An insulating substrate having a plurality of metallized wiring layers made of refractory metal powder, and an external body attached to the metallized wiring layers via a brazing material such as silver brazing to electrically connect electronic parts to an external electric circuit. It is composed of a lead terminal and a lid.

When the electronic component is, for example, a semiconductor element, the semiconductor element is adhered and fixed to the bottom surface of the recess of the insulating substrate via an adhesive material such as glass, resin, or brazing material, and each semiconductor element is attached. The electrodes and the metallized wiring layer are electrically connected via an electric connection hand throw such as a bonding wire, and thereafter, the lid is joined to the upper surface of the insulating substrate via a sealing material made of low melting point glass, A semiconductor device as a final product is obtained by hermetically accommodating a semiconductor element inside a container composed of an insulating base and a lid.

In the case where the electronic component is, for example, a piezoelectric vibrator, one end of the piezoelectric vibrator is adhered to the step portion formed on the bottom surface of the recess of the insulating substrate with an adhesive material made of a conductive epoxy resin or the like. The electrodes of the piezoelectric vibrator are fixed and electrically connected to the metallized wiring layer, and then the lid is bonded to the upper surface of the insulating base through a sealing material made of low-melting glass to form the insulating base and the lid. An electronic component device as a final product is obtained by hermetically accommodating a semiconductor element inside a container made of.

As a sealing material for joining the lid to the insulating substrate, generally 56 to 66% by weight of lead oxide, 4 to 14% by weight of boron oxide, 1 to 6% by weight of silicon oxide, and 0.5 to bismuth oxide are used. Glass containing 5 wt% and 0.5 to 3 wt% of zinc oxide, 9 to 19 wt% of cordierite compound as a filler, and 10 to 20 wt% of tin titanate compound is used. ing.

However, in this conventional package for storing electronic parts, ceramics such as aluminum oxide (Al ₂ O ₃ ) sintered material forming the insulating substrate and lid, and glass forming the sealing material are both used. When it is mounted together with other electronic components on an external electric circuit board, etc., it has a problem of mutual interference of electromagnetic waves between adjacent electronic components, causing malfunction of the electronic components, because it does not have much ability to block electromagnetic waves. It was In particular, recently, electronic parts have been mounted on an external electric circuit board at an extremely high density, and the distance between adjacent electronic parts has become extremely small. The problem due to the mutual interference of electromagnetic waves has become extremely large. .

Therefore, in order to solve the above-mentioned drawbacks, the applicant of the present application first forms a metal layer below a mounting portion on which an electronic component is mounted, and at the same time, a part of the metal layer is led out through a through-hole conductor. The present invention proposes a package for housing an electronic component, which includes an insulating base body, a conductive lid and a conductive sealing material (see Japanese Patent Application No. 9-291299).

According to such an electronic component storing package, the conductive lid is bonded to the upper surface of the insulating base through the conductive sealing material, and the metal layer provided on the insulating base and the conductive lid are through-hole conductors. Also, by electrically connecting with a conductive sealing material and surrounding the electronic component from above and below with a metal layer and a conductive lid, it is possible to effectively prevent electromagnetic waves from acting on the electronic component housed inside from the outside. Therefore, it becomes possible to operate the electronic component normally and stably for a long period of time.

[0009]

However, in this electronic component storing package, the diameter of the through-hole conductor for leading out a part of the metal layer to the upper surface of the insulating substrate is as small as about 0.2 mm, and the conductive sealing is provided. Volume resistance of material is 1 × 1
Since it is as high as about 0 ⁴ Ω, even if the conductive lid and the through-hole conductor provided on the insulating base are connected via a conductive sealing material, the electrical connection between them has high conduction resistance and low reliability. As a result, there is a problem to be solved in that it is impossible to securely electrically connect the metal layer and the conductive lid to protect the electronic component from external electromagnetic waves, and it is not possible to completely protect the electronic component.

The present invention has been devised in view of the above drawbacks, and its purpose is to reliably prevent electromagnetic waves from acting on electronic parts housed inside a container, and to keep the electronic parts normal and stable for a long period of time. An object of the present invention is to provide a package for storing electronic components that can be operated at any time.

[0011]

According to the present invention, there is provided on a top surface a mounting portion on which an electronic component is mounted, and a frame-shaped metal layer formed so as to surround the mounting portion, and below the mounting portion. An insulating substrate provided with a metal layer electrically connected to the frame-shaped metal layer and a conductive lid, and a conductive lid is provided on the frame-shaped metal layer with a conductive sealing material. A package for storing electronic parts, which is joined via a metal layer to electrically connect the metal layer and the conductive cover, and hermetically stores the electronic parts inside a container formed of an insulating base and a conductive cover. A large number of through holes are formed in the frame-shaped metal layer.

The present invention is also characterized in that the total plane area of the through holes is 5 to 50% of the plane area of the frame-shaped metal layer.

According to the package for storing electronic parts of the present invention, a frame-shaped metal is provided in which a metal layer is arranged below the mounting portion of the insulating base on which electronic parts are mounted and a part of the metal layer is formed on the upper surface of the insulating base. When the conductive lid is bonded to the upper surface of the insulating substrate via the conductive sealing material, the conductive sealing material contacts the frame-shaped metal layer in an extremely wide area and becomes conductive. The conductive lid and the metal layer are reliably and electrically connected with a low conduction resistance, and as a result, electromagnetic waves are surely prevented from acting on the electronic component, and the electronic component is kept normal for a long period of time, and It becomes possible to operate stably.

Further, according to the electronic component storage package of the present invention, the frame-shaped metal layer has a plurality of through-holes whose total plane area is, for example, 5 to 50% of the plane area of the frame-shaped metal layer. When the conductive lid is bonded to the frame-shaped metal layer through the conductive sealing material, the upper surface of the insulating substrate having good bonding properties with the conductive sealing material is exposed inside the through hole. , A part of the conductive sealing material is firmly bonded to the upper surface of the insulating base exposed inside the through hole, and as a result, the container including the insulating base and the conductive lid is completely hermetically sealed, It is also possible to operate the electronic components housed in the normal and stable operation for a long period of time.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the accompanying drawings. 1 is a sectional view showing an example of an embodiment of an electronic component storing package of the present invention, FIG. 2 is an enlarged sectional view of an essential part thereof, and FIG. 3 is an enlarged plan view of an essential part. In FIG. It is a semiconductor element, and shows an example in the case where the electronic component storage package is a semiconductor element storage package.

In the figure, 1 is an insulating substrate, and 2 is a conductive lid. The insulating substrate 1 and the conductive lid 2 constitute a container 4 for housing the semiconductor element 3.

The insulating substrate 1 is provided with a recessed mounting portion 1a in which the semiconductor element 3 is mounted and accommodated in the substantially central portion of the upper surface thereof. The mounting portion 1a includes the semiconductor element 3 made of glass, resin,
It is adhesively fixed through an adhesive material made of a brazing material or the like.

The insulating substrate 1 is made of an aluminum oxide sintered body, a mullite sintered body, an aluminum nitride sintered body,
It is made of an electrically insulating material such as a silicon carbide sintered body.
When it is made of an aluminum oxide sintered body, a suitable organic binder, a solvent, a plasticizer, a dispersant, etc. are added to and mixed with the raw material powder of aluminum oxide, silicon oxide, magnesium oxide, calcium oxide, etc. Then, the sludge is formed into a sheet by using a sheet forming method such as a well-known doctor blade method or calendar roll method to obtain a ceramic green sheet (ceramic green sheet), which is then suitable for those ceramic green sheets. Punching and stacking multiple sheets at about 1600 ℃
It is manufactured by firing at high temperature.

Further, a plurality of metallized wiring layers 5 are adhered and formed from the periphery of the mounting portion 1a to the upper surface of the insulating base 1, and the electrodes of the semiconductor element 3 are formed around the mounting portion 1a of the metallized wiring layer 5. Are electrically connected via a bonding wire 6, and external lead terminals 7 connected to an external electric circuit are attached to a portion led out to the upper surface of the insulating substrate 1 via a brazing material such as silver brazing. ing.

The metallized wiring layer 5 functions as a conductive path when each electrode of the semiconductor element 3 is electrically connected to an external electric circuit, and is made of a refractory metal powder such as tungsten, molybdenum or manganese.

The metallized wiring layer 5 is made of tungsten,
A metal paste obtained by adding and mixing a suitable organic binder, a solvent, a plasticizer, etc. to a refractory metal powder such as molybdenum or manganese is used as the insulating substrate 1 by adopting a thick film technique such as a conventionally known screen printing method. The ceramic green sheet is printed and applied in advance, and the ceramic green sheet is fired at the same time to mount the insulating substrate 1 on the mounting portion 1a.
It is formed in a predetermined pattern from the periphery to the upper surface.

The metallized wiring layer 5 is formed by depositing a metal such as nickel or gold having good conductivity, corrosion resistance and wettability with a brazing material to a thickness of 1 to 20 μm by plating. By doing so, it is possible to effectively prevent oxidative corrosion of the metallized wiring layer 5, and to make the connection between the metallized wiring layer 5 and the bonding wire 6 and the brazing of the metallized wiring layer 5 and the external lead terminal 7 extremely strong. You can Therefore, oxidative corrosion of the metallized wiring layer 5 is prevented, the metallized wiring layer 5 and the bonding wire 6 are connected, and the metallized wiring layer 5 and the external lead terminal 7 are connected.
In order to firmly braze the metal with nickel, it is preferable to deposit nickel, gold, etc. on the surface of the metallized wiring layer 5 by a plating method to a thickness of 1 to 20 μm.

Further, the insulating base 1 has a metal layer 8 disposed below the mounting portion 1a, and a part of the metal layer 8 is formed on the upper surface of the insulating base 1 so as to surround the mounting portion 1a. 9 is electrically connected.

The metal layer 8 surrounds the semiconductor element 3 housed inside with a conductive lid 2 described later, prevents electromagnetic waves from acting on the semiconductor element 3 from the outside, and operates the semiconductor element 3 stably. Act.

The metal layer 8 is, for example, tungsten,
A metal paste made of refractory metal powder such as molybdenum and manganese, which is obtained by adding and mixing an appropriate organic binder, solvent, plasticizer and the like to refractory metal powder such as tungsten, molybdenum and manganese, and the conventionally known screen printing method. Insulating substrate 1 is formed by applying a thick film method such as the above to a ceramic green sheet to be insulating substrate 1 in advance by printing, and firing the ceramic green sheet simultaneously with the ceramic green sheet.
Is disposed below the mounting portion 1a of the.

On the other hand, an external lead terminal 7 is brazed to the metallized wiring layer 5 formed on the insulating base 1, and the external lead terminal 7 connects the semiconductor element 3 housed inside the container 4 to an external electric circuit. The semiconductor element 3 housed inside by connecting the external lead terminal 7 to an external electric circuit has a bonding wire 6,
It is electrically connected to an external electric circuit through the metallized wiring layer 5 and the external lead terminal 7.

The external lead terminal 7 is made of a metal material such as iron-nickel-cobalt alloy or iron-nickel alloy,
It is formed into a predetermined shape by subjecting an ingot (lump) of iron-nickel-cobalt alloy or the like to a conventionally known metal working method such as a rolling working method or a punching working method.

The external lead terminal 7 is also coated on its surface with a metal having good conductivity and excellent corrosion resistance such as nickel and gold by plating to a thickness of 1 to 20 μm. It is possible to effectively prevent the oxidative corrosion of 7 and to make good electrical connection between the external lead terminal 7 and the external electric circuit. Therefore, it is preferable to deposit nickel, gold or the like on the surface of the external lead terminal 7 by a plating method to a thickness of 1 to 20 μm.

Further, in the insulating substrate 1 to which the external lead terminals 7 are attached, the conductive lid 2 is bonded to the frame-shaped metal layer 9 adhered on the upper surface thereof via the conductive sealing material 10, As a result, the metal layer 8 of the insulating base 1 and the conductive lid 2 are electrically connected to each other, and the semiconductor element 3 is hermetically housed inside the container 4 including the insulating base 1 and the conductive lid 2.

The frame-shaped metal layer 9 is electrically connected to the metal layer 8 and has a function of electrically connecting the conductive lid 2 to the metal layer 8, and is mounted on the upper surface of the insulating base 1 on the mounting portion 1a. Is formed in a frame shape with a width of, for example, about 0.4 to 1 mm.

The width of the frame-shaped metal layer 9 is, for example,
Since it is as wide as about 0.4 to 1 mm, when the conductive lid 2 is bonded to the frame-shaped metal layer 9 via the conductive sealing material 10, the conductive sealing material 10 and the frame-shaped metal layer 9 are extremely strong. The conductive lid 2 and the metal layer 8 are contacted with each other over a wide area and are electrically connected to each other reliably and with low conduction resistance. As a result, the container 4
It is possible to reliably prevent the electromagnetic waves from acting on the semiconductor element 3 housed inside and operate the semiconductor element 3 normally and stably for a long period of time.

The frame-shaped metal layer 9 is made of the same material as the metal layer 8 described above, for example, tungsten, molybdenum,
It is made of a refractory metal powder such as manganese and is formed in a frame shape on the upper surface of the insulating base 1 by the same method as that for forming the metal layer 8 on the insulating base 1.

The frame-shaped metal layer 9 is provided with a plurality of through holes 9a having a hole diameter of about 0.05 to 0.4 mm, and the conductive sealing material 10 is provided in the through holes 9a. When the conductive lid 2 is bonded to the frame-shaped metal layer 9 through the conductive sealing material 10 by exposing the upper surface of the insulating base 1 having good bonding property, the conductive lid is mounted on the upper surface of the insulating base 1. 2 can be firmly joined to each other, whereby the container 4 including the insulating base 1 and the conductive lid 2 is completely hermetically sealed,
The semiconductor element 3 housed inside the container 4 can be operated normally and stably for a long period of time.

When the total area of the through holes 9a formed in the frame-shaped metal layer 9 is less than 5% of the plane area of the frame-shaped metal layer 9, the conduction to the upper surface of the insulating substrate 1 having the frame-shaped metal layer 9 is conducted. The bonding strength of the flexible lid 2 is reduced, and the insulating base 1 and the conductive lid 2 are
The reliability of the hermetic sealing of the container 4 composed of is likely to deteriorate, and if it exceeds 50%, the conductive lid for the metal layer 8 provided on the insulating substrate 1 via the conductive sealing material 10 is provided. There is a risk that the electrical connection of the body 2 will be unreliable. Therefore, the through holes 9a formed in the frame-shaped metal layer 9 have a total plane area of 5 to 50 of the plane area of the frame-shaped metal layer 9.
It is preferable to set it in the range of%.

When the frame-shaped metal layer 9 is formed by using a thick film method such as a screen printing method, the through-hole 9a is formed in advance by forming a non-through portion having a shape corresponding to the through-hole 9a on the screen mask. By placing it, the frame-shaped metal layer 9 is formed in a predetermined shape at a predetermined position.

Further, the frame-shaped metal layer 9 has a conductive sealing material 1
The conductive lid body 2 is joined via 0, and the conductive lid body 2 is obtained by depositing a metal film such as copper or aluminum on the surface of an aluminum oxide sintered body, or an iron-nickel-cobalt alloy. And a metal layer 8 made of a metal material such as an iron-nickel alloy and hermetically sealing the semiconductor element 3 mounted on the mounting portion 1a of the insulating base 1 and the metal layer 8 disposed on the insulating base 1 to form the semiconductor element 3 It acts to prevent electromagnetic waves from acting on the surrounding semiconductor element 3 and to operate the semiconductor element 3 in a stable manner.

Furthermore, the conductive sealing material 10 for bonding the conductive lid 2 to the frame-shaped metal layer 9 hermetically seals the semiconductor element 3 inside the container 4 composed of the insulating base 1 and the conductive lid 2. It has a function of electrically connecting the metal layer 8 of the insulating substrate 1 and the conductive lid body 2 while sealing, and is formed of, for example, glass or an organic resin containing metal powder.

The conductive sealing material 10 is made of lead oxide 5
Lead titanate as a filler in a glass component containing 0 to 65% by weight, boron oxide 2 to 10% by weight, lead fluoride 10 to 30% by weight, zinc oxide 1 to 6% by weight, and bismuth oxide 10 to 20% by weight. When the conductive glass is formed of conductive glass containing 26 to 45% by weight of a compound and 5 to 20% by weight of copper, iron-nickel alloy, iron-nickel-cobalt alloy, the conductive glass has a softening melting temperature of 320. The temperature is as low as not more than 0 ° C., and therefore, when the insulating substrate 1 and the conductive lid 2 are bonded and the container 4 is hermetically sealed, the sealing temperature can be set to a low temperature, and as a result, the conductive sealing material 10 can be obtained. Even if the heat for melting the semiconductor element acts on the semiconductor element 3 contained therein, the characteristics of the semiconductor element 3 are not deteriorated, and the semiconductor element 3 can be operated normally and stably for a long period of time. . The softening and melting temperature of this conductive glass is 3
Since the temperature is as low as 20 ° C. or lower, when the semiconductor element 3 is adhesively fixed to the mounting portion 1a of the insulating substrate 1 via an adhesive material such as a resin, the semiconductor element 3 has the adhesive fixing characteristic of the conductive sealing material 10. The semiconductor element 3 can be extremely firmly adhered and fixed to the mounting portion 1a of the insulating substrate 1 without being significantly deteriorated by the heat of softening and melting, and the semiconductor element 3 can always be stably operated. it can.

The conductive sealing material 10 is made of lead oxide 50.
To 65% by weight, boron oxide 2 to 10% by weight, lead fluoride 10 to 30% by weight, zinc oxide 1 to 6% by weight, bismuth oxide 10 to 20% by weight, and a lead titanate-based filler as a filler. When the compound is made of conductive glass containing 26 to 45% by weight of copper, 5 to 20% by weight of copper, iron-nickel alloy and iron-nickel-cobalt alloy, the glass containing less than 50% by weight of lead oxide is used. The softening and melting temperature of the container becomes high, and the heat of hermetically sealing the container 4 causes deterioration of the characteristics of the semiconductor element 3. If it exceeds 65% by weight, the chemical resistance of the glass decreases, and The reliability of the hermetic sealing of No. 4 will be greatly reduced. Therefore, the amount of lead oxide is preferably set in the range of 50 to 65% by weight.

If the amount of boron oxide is less than 2% by weight, the crystallization of the glass will proceed and the fluidity will be greatly reduced, making it difficult to hermetically seal the container 4, and if it exceeds 10% by weight. The softening and melting temperature of the glass becomes high, and the heat of sealing the container 4 hermetically deteriorates the characteristics of the semiconductor element 3. Therefore, the amount of boron oxide is preferably set in the range of 2 to 10% by weight.

If the amount of lead fluoride is less than 10% by weight, the softening and melting temperature of the glass becomes high, and the heat of sealing the container 4 hermetically deteriorates the characteristics of the semiconductor element 3. Further, if 30% by weight is suitable, the chemical resistance of the glass is lowered, and the reliability of hermetic sealing of the container 4 is greatly lowered. Therefore, the amount of lead fluoride is preferably set in the range of 10 to 30% by weight.

If the amount of zinc oxide is less than 1% by weight, the chemical resistance of the glass is lowered, and the reliability of hermetic sealing of the container 4 is greatly lowered. Crystallization proceeds and the fluidity is greatly reduced, making it difficult to hermetically seal the container 4. Therefore, the amount of zinc oxide is preferably set in the range of 1 to 6% by weight.

When the amount of bismuth oxide is less than 10% by weight, the softening and melting temperature of the glass becomes high and the heat of the hermetically sealing the container 4 causes the characteristics of the semiconductor element 3 to deteriorate. On the other hand, if it exceeds 20% by weight, the crystallization of the glass will proceed and the fluidity will be greatly reduced, making it difficult to hermetically seal the container 4. Therefore, it is preferable that the amount of bismuth oxide is in the range of 10 to 20% by weight.

The lead titanate compound added as a filler to the conductive sealing material 10 adjusts the coefficient of thermal expansion of the conductive sealing material 10 so that the insulating substrate 1 and the conductive lid 2 are made conductive. If the amount of the sealing material 10 is less than 26% by weight, the coefficient of thermal expansion of the conductive sealing material 10 will be an insulating substrate. 1 and the conductive lid 2 are greatly different from each other in thermal expansion coefficient, the conductive sealing material 10 cannot be firmly bonded to the insulating substrate 1 and the conductive lid 2, and when it exceeds 45% by weight. The fluidity of the conductive encapsulant 10 decreases, making it difficult to hermetically seal the container 4. Therefore, the amount of the lead titanate-based compound is preferably set in the range of 26 to 45% by weight.

Copper, iron-nickel alloy, and iron-nickel-cobalt alloy added as fillers to the conductive sealing material 10 are conductivity-imparting materials for the conductive sealing material 10.
When the amount is less than 5% by weight, the conductivity of the conductive encapsulant 10 is lowered, and the conductive lid 2 is surely attached to the frame-shaped metal layer 9 connected to the metal layer 8 of the insulating substrate 1. It becomes impossible to make electrical connection, and if it exceeds 20% by weight, the fluidity of the conductive sealing material 10 is lowered, and it becomes difficult to hermetically seal the container 4. Therefore, the amount of copper is 5 to 20
It is preferable to set it in the range of% by weight.

Thus, according to the above-mentioned package for accommodating semiconductor elements, the semiconductor element 3 is adhered and fixed to the mounting portion 1a of the insulating substrate 1 via the adhesive material made of glass, resin, brazing material or the like, and The electrodes are electrically connected to the metallized wiring layer 5 via the bonding wires 6,
After that, the conductive lid 2 is bonded to the frame-shaped metal layer 9 on the upper surface of the insulating base 1 via the conductive sealing material 10 so as to cover the mounting portion 1a, and the metal layer 8 of the insulating base 1 and the conductive layer 2 are made conductive. The semiconductor device as a final product is completed by hermetically housing the semiconductor element 3 inside the container 4 composed of the insulating base 1 and the conductive lid 2 while electrically connecting the lid 2.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described example, a semiconductor is used as an electronic component. Although the electronic component storage package for accommodating the element has been illustrated, the electronic component is a piezoelectric magnetic vibrator, a surface acoustic wave element, or the like, and can be applied to an electronic component storage package for accommodating this.

Further, in the above-mentioned example, the package for storing electronic parts in which the external lead terminals 7 are brazed to the metallized wiring layer 5 is illustrated, but the invention is not necessarily limited to this, and the metallized wiring layer is provided on the lower surface of the insulating substrate. It may be a terminal which is led out and connected directly to an external electric circuit.

[0049]

According to the electronic component storage package of the present invention, a frame is provided in which a metal layer is arranged below the mounting portion of the insulating base on which electronic components are mounted, and a part of the metal layer is formed on the upper surface of the insulating base. When the conductive lid is bonded to the upper surface of the insulating substrate via the conductive sealing material, the conductive sealing material makes contact with the frame-shaped metal layer in an extremely large area. As a result, the conductive lid and the metal layer are reliably and electrically connected with a low conduction resistance, and as a result, electromagnetic waves are surely prevented from acting on the electronic components and the electronic components are kept in a normal operating condition for a long time. And, it becomes possible to operate stably.

Further, according to the package for housing electronic parts of the present invention, the frame-shaped metal layer has a plurality of through holes having a total plane area of, for example, 5 to 50% of the plane area of the frame-shaped metal layer. Since the upper surface of the insulating substrate having good bonding property with the conductive sealing material is exposed inside the through hole, the conductive lid is conductively sealed on the upper surface of the insulating substrate on which the frame-shaped metal layer is formed. At the time of joining through the stopper, a part of the conductive sealing material is firmly joined to the upper surface of the insulating base exposed inside the through hole, and as a result, the gas of the container including the insulating base and the conductive lid is sealed. The tight sealing is complete, and the electronic components housed inside the container can be operated normally and stably for a long period of time.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of an embodiment of a package for housing an electronic component of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the electronic component storage package shown in FIG.

FIG. 3 is an enlarged plan view around the mounting portion of the insulating base of the electronic component storage package shown in FIG.

[Explanation of symbols]

1 ... Insulating substrate 2 .... Conductive lid 3 ... Semiconductor element (electronic component) 4 ... Container 8 ... Metal layer 9 .... Frame-shaped metal layer 9a ... through hole 10 ... Conductive sealing material

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-216652 (JP, A) JP-A-6-268091 (JP, A) JP-A-8-204059 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) H01L 23/00 H01L 23/02 H01L 23/10 H05K 9/00

Claims (2)

(57) [Claims] 1. A top surface having a mounting portion on which an electronic component is mounted and a frame-shaped metal layer formed so as to surround the mounting portion, and electrically connected to the frame-shaped metal layer below the mounting portion. An insulating substrate having a metal layer connected thereto and a conductive lid, and the frame-shaped metal layer is joined to the conductive lid through a conductive sealing material to form the metal layer. And a conductive lid are electrically connected to each other, and an electronic component storing package for hermetically storing electronic components inside a container made of an insulating base and a conductive lid, wherein the frame-shaped metal A package for housing electronic components, characterized in that a number of through holes are formed in the layer. 2. The total plane area of the through holes is 5 to 50% of the plane area of the frame-shaped metal layer.
The electronic component storage package described in.