JPS59224540A - Inspecting method of characteristics of sealing resin - Google Patents
Inspecting method of characteristics of sealing resinInfo
- Publication number
- JPS59224540A JPS59224540A JP8416383A JP8416383A JPS59224540A JP S59224540 A JPS59224540 A JP S59224540A JP 8416383 A JP8416383 A JP 8416383A JP 8416383 A JP8416383 A JP 8416383A JP S59224540 A JPS59224540 A JP S59224540A
- Authority
- JP
- Japan
- Prior art keywords
- sealing resin
- flow passage
- test
- mold
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は、１」止樹脂の特性検査方法に関し、特に溶融
した封止樹脂の種類によって金型をどの程度摩耗させる
かをあらかじめ検知しておき、金型の適切な交換時期、
経済的な封止樹脂の使用を可能にした封止樹脂の特性検
査方法に係る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to (1) a method for testing the characteristics of a sealing resin, and in particular detects in advance how much a mold will be worn out depending on the type of molten sealing resin. , the appropriate time to replace the mold,
The present invention relates to a method for testing the characteristics of a sealing resin that makes it possible to use an economical sealing resin.
し発明の技術的醒景とその問題点］
最近の電子部品は、安全性等の検知から不燃性または耐
燃性が要求されており、樹脂封止電子部品においても適
用されている。[Technical Awakening of the Invention and its Problems] Recent electronic components are required to be non-flammable or flame-resistant for reasons such as safety, and this is also applied to resin-sealed electronic components.
この要求に応じ得るため各種の封止樹脂が開発されてい
るが、これら共通の技術として樹脂素材の中にたとえば
、石英粉末等の不燃性物質が混入されている。Various sealing resins have been developed to meet this demand, but a common technique among these resins is that a nonflammable substance such as quartz powder is mixed into the resin material.
ところで、これら不燃性物質の混入された樹脂（以下、
単に樹脂という。）を用いて電子部品を樹脂封止するに
は成形金型を使用覆るが、この樹脂は、前記のように不
燃物質として石英のような物質、すなわち、硬度が高く
、粒子が尖っていて金型を削り取るような物質が混入し
ているために成形金型の寿命は、従来の樹脂に比べて約
２／３になっている。By the way, resin mixed with these nonflammable substances (hereinafter referred to as
It is simply called resin. ) A mold is used to encapsulate electronic parts with resin, but as mentioned above, this resin is a non-combustible material such as quartz, which has high hardness and sharp particles, and is made of metal. The lifespan of molding molds is about two-thirds that of conventional resins because it contains substances that can scrape off the mold.
上記の金型は高価であり、新しい樹脂を使用づる際には
、その樹脂がどの程度金型を摩耗させるのかを成形金型
のメンテナンスや経済性等の面からあらかじめテストす
る必要があった。The above-mentioned molds are expensive, and when using a new resin, it is necessary to test in advance how much the resin will wear out the mold from the viewpoint of mold maintenance and economic efficiency.
従来、封止樹脂の特性を検知づるには、たとえば第１図
のようにモータ１の出力軸２固定しだ円板状成形樹脂の
試料３を鋼材４に接触させて鋼材４の摩耗度合を調べる
方法がある。Conventionally, in order to detect the characteristics of a sealing resin, for example, as shown in FIG. There is a way to find out.
しかし、封止樹脂は、硬化後と成形金型内を溶融状態で
流れている時とでは、物理的性質が異なるため、上記の
テスト方法では、成形金型の摩耗度を調べるのには適し
ていない。また、実際に使用する成形金型でテス］−す
るには、数万回の成形をしてみないと金型の摩耗具合が
明瞭にならないので現実には不可能である。However, the physical properties of the sealing resin differ between after it has hardened and when it is flowing in a molten state inside the mold, so the above test method is not suitable for investigating the degree of wear of the mold. Not yet. In addition, it is actually impossible to test using a molding die that will actually be used because the degree of wear on the mold will not become clear until molding has been performed tens of thousands of times.
［発明の目的］
本発明は、上記の事情に基づきなされたもので、封止樹
脂の特性、特に溶融状態で成形金型の流路を流れる封止
樹脂によって成形金型がどの程度摩耗するかを短時間か
つ容易に検知し得るようにした封止樹脂の特性検査方法
を提供することを目的とする。[Objective of the Invention] The present invention has been made based on the above circumstances, and focuses on the characteristics of the sealing resin, particularly the extent to which the mold is worn by the sealing resin flowing through the flow path of the mold in a molten state. It is an object of the present invention to provide a method for testing the characteristics of a sealing resin, which allows the detection of the characteristics of a sealing resin in a short time and easily.
［発明の概要コ
すなわち、本発明は、耐摩耗性金属からなる金型に溶融
した封止樹脂の流路を設け、この流路に接する位買にテ
ストピースを配置し、前記流路を流れる封止樹脂の種類
に応じて前記テストピースの摩耗度を計測し、封止樹脂
の特性を検知し得るようにしたことを特徴とジる封止樹
脂の特性検査方法である。[Summary of the Invention] In other words, the present invention provides a mold made of wear-resistant metal with a flow path for molten sealing resin, places a test piece in contact with this flow path, and allows the molten sealing resin to flow through the flow path. This method of testing characteristics of a sealing resin is characterized in that the degree of wear of the test piece is measured according to the type of sealing resin, and the characteristics of the sealing resin can be detected.
Ｕ発明の実施例］
第２図ないし第３図は、本発明の一実施例を示し、第２
図は、成形金型の下型の平面図、第４図は、上型、下型
を組み合せた成形金型の一部切欠断面図を示す。Embodiment of the invention] FIGS. 2 and 3 show an embodiment of the present invention, and FIGS.
The figure shows a plan view of the lower mold of the molding die, and FIG. 4 shows a partially cutaway sectional view of the molding die in which the upper mold and the lower mold are combined.
これらの図において、下型１・０は、耐摩耗性金属によ
り形成され、この下型１ｏには、たとえば図示のように
平面はぼ、うず巻状の流路１１が形成されている。In these figures, the lower mold 1.0 is made of wear-resistant metal, and the lower mold 1o is formed with, for example, a concave, spiral-shaped channel 11 as shown in the figures.
流路１１の中心部には、封子樹脂の注入部１２が設けら
れている。A sealing resin injection part 12 is provided at the center of the flow path 11 .
上記流路１１に沿って、その複数箇所にテストピース１
３が支持される有底穴１４を設ける。Test pieces 1 are placed at multiple locations along the flow path 11.
A bottomed hole 14 in which 3 is supported is provided.
すなわら、たとえば図示のように流路１１のコーナ部近
傍に有底穴１４を配置し、この有底穴１３に第３図に示
１ようなテストピース１３の脚部１３ａを挿入づること
により、テストピース１３の頭部１５の外周部が流路１
１と接することとなる。That is, for example, as shown in the figure, a bottomed hole 14 is arranged near the corner of the flow path 11, and a leg 13a of a test piece 13 as shown in FIG. 3 is inserted into this bottomed hole 13. As a result, the outer periphery of the head 15 of the test piece 13 is connected to the flow path 1.
It will be in contact with 1.
なお、このテストピースは溶融樹脂の接触部よって比較
的早期に変化量が観察可能な材質、たとえばアルミニュ
ームを用い、また、その形状も円筒状に限ることなく、
溶融樹脂との接触部を針状に覆る等より摩耗量の変化が
早期に現われる形状であれば良い。Note that this test piece is made of a material such as aluminum that allows the amount of change to be observed relatively quickly due to the contact area of the molten resin, and its shape is not limited to a cylindrical shape.
Any shape may be used as long as the change in the amount of wear appears early, such as by covering the contact portion with the molten resin in a needle shape.
次に、第４図を参照にして実際のテスト方法を説明する
。Next, an actual test method will be explained with reference to FIG.
１なわち、上型１６に設けた樹脂投入口１７がら溶融樹
脂を下型１ｏに注入する。1, molten resin is injected into the lower mold 1o through the resin inlet 17 provided in the upper mold 16.
なｊ５、」二型１６と下型１ｏとは、図示を省略した加
圧機構により支持され、ま１ｃ、所定温度に加熱されて
いる。The second mold 16 and the lower mold 1o are supported by a pressure mechanism (not shown), and heated to a predetermined temperature.
そこで、下型１０に注入された樹脂が溶融し、流路１１
に入り、その形状に従って流れる。There, the resin injected into the lower mold 10 melts and the flow path 11
and flows according to its shape.
この場合、流路の複数箇所には、流路に接するｊストピ
ース１３が配置されているので、溶融樹脂中に含まれる
不燃物質によってデス１−ピース１３を削り取る作用を
受ける。In this case, since the stop pieces 13 that are in contact with the flow path are arranged at a plurality of locations in the flow path, the stop pieces 13 are scraped off by the nonflammable substances contained in the molten resin.
このテストピース１３は、下ｕｌｏに挿入する前にその
重量を精密に測定しておき樹脂の複数回（数十回程度）
繰り返えされる成形テスト後、下型１０から抜き取り、
上記と同一の条件下で再びテストピース１３の重量を測
定する。Before inserting this test piece 13 into the lower ulo, its weight is precisely measured and the test piece 13 is tested several times (approximately several dozen times).
After repeated molding tests, it is removed from the lower mold 10,
The weight of the test piece 13 is measured again under the same conditions as above.
こうして、初期の重量とテスト後の重量を比較すること
により、テス］・回数とテストピースの重量の変化間と
の相関関係が明らかになる。Thus, by comparing the initial weight and the weight after the test, the correlation between the number of tests and the change in weight of the test piece becomes clear.
したがって、異なる種類の封止樹脂ごとに上記のテスト
を行なうことにより、それぞれの樹脂が金型のどの程度
摩耗させるかがきゎめズ容易に検知することが可能とな
る。Therefore, by conducting the above test for each different type of sealing resin, it is possible to easily detect the extent to which each resin abrades the mold.
なお、摩耗度を測定するのに変化の前後にわたる重量を
比較することに変え、形状変化、寸法変化によって、そ
れらの摩耗度を検知し得ることは言うまでもない。It goes without saying that instead of comparing the weight before and after the change to measure the degree of wear, the degree of wear can be detected based on changes in shape and dimensions.
［発明の効果］
上記のように本発明は、溶融状態における成形金型に与
える影響、すなわち、成形金型の摩耗度を短時間にかつ
簡単な操作により検知することが可能となり、成形金型
のメンテナンスに好適であり、また、適切な封止樹脂の
使用により成形金型の寿命をのばし、引いては、製品コ
ス１〜を低減することができる。[Effects of the Invention] As described above, the present invention makes it possible to detect the influence on the molding die in the molten state, that is, the degree of wear of the molding die in a short time and with a simple operation, and In addition, by using an appropriate sealing resin, the life of the mold can be extended, and the product cost can be reduced.
第１図は、従来の封止樹脂の摩耗度をテストする方法を
示す説明図、第２図ないし第４図は、本発明に係る樹脂
封止樹脂の特性検査方法を説明するための図であって、
上記検査方法に用いる成形金型における下型の平面図、
第３図は、テストピースの斜視図、第４図は、上型、下
型を組み合せデスｌ−ピースを設置した状態の一部切欠
断面図である。
１０・・・下型 １１・・・流路
１２・・・注入口 １３・・・テストピース１４・・
・有底穴 １５・・・頭部
１６・・・上型
出願代理人 弁理士 菊 池 五 部FIG. 1 is an explanatory diagram showing a conventional method for testing the degree of wear of a sealing resin, and FIGS. 2 to 4 are diagrams for explaining a method for testing characteristics of a resin sealing resin according to the present invention. There it is,
A plan view of the lower mold in the molding die used in the above inspection method,
FIG. 3 is a perspective view of the test piece, and FIG. 4 is a partially cutaway sectional view of the upper and lower molds combined and a dess L-piece installed. 10... Lower mold 11... Channel 12... Inlet 13... Test piece 14...
・Bottomed hole 15...Head 16...Top type application agent Patent attorney Kikuchi Gobu
Claims (1)
設け、この流路に接する位置にテストピースを配置し、
前記流路を流れる封止樹脂の種類に応じて前記テストピ
ースの摩耗度を計測し、封止樹脂の特性を検知し得るよ
うにしたことを特徴とする封止樹脂の特性検査方法。A flow path for molten sealing resin is provided in a mold made of wear-resistant metal, and a test piece is placed in contact with this flow path.
A method for testing characteristics of a sealing resin, characterized in that the degree of wear of the test piece is measured according to the type of sealing resin flowing through the flow path, and the characteristics of the sealing resin can be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8416383A JPS59224540A (en) | 1983-05-16 | 1983-05-16 | Inspecting method of characteristics of sealing resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8416383A JPS59224540A (en) | 1983-05-16 | 1983-05-16 | Inspecting method of characteristics of sealing resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59224540A true JPS59224540A (en) | 1984-12-17 |
Family
ID=13822823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8416383A Pending JPS59224540A (en) | 1983-05-16 | 1983-05-16 | Inspecting method of characteristics of sealing resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59224540A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5397892A (en) * | 1977-02-07 | 1978-08-26 | Exxon Research Engineering Co | Indicator for nonndestructive abrasion in refractories |
-
1983
- 1983-05-16 JP JP8416383A patent/JPS59224540A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5397892A (en) * | 1977-02-07 | 1978-08-26 | Exxon Research Engineering Co | Indicator for nonndestructive abrasion in refractories |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nigh et al. | Test method evaluation experiments and data | |
| US20120105240A1 (en) | Reliability evaluation and system fail warning methods using on chip parametric monitors | |
| KR20070075699A (en) | Contact probe | |
| US4962355A (en) | Thermal test chamber device | |
| JPS59224540A (en) | Inspecting method of characteristics of sealing resin | |
| US3916304A (en) | Method for nondestructive testing of weld clusters | |
| US4410381A (en) | Methods and apparatus for testing the quality of an ultrasonic weld in thermoplastic material | |
| Hartweg et al. | Analysis of the crack location in notched steel bars with a multiple DC potential drop measurement | |
| US20060112755A1 (en) | Apparatus and method for determining feedscrew and barrel wear | |
| US2008046A (en) | Method for the testing of detonating fuse | |
| US6429677B1 (en) | Method and apparatus for characterization of gate dielectrics | |
| Kingston | Advances in the deep-hole drilling technique for residual stress measurement | |
| WO1999056124A9 (en) | Eddy current flexible field probe | |
| US3400572A (en) | Seal evaluation test fixture | |
| Hauck et al. | Weibull statistics for multiple flaw distributions and its application in silicon fracture prediction | |
| Mercer | Paper 12: Reliability of solenoid valves | |
| Inoue et al. | Fatigue-creep life prediction for a notched specimen of 214Cr 1Mo steel at 600° C | |
| US20070038969A1 (en) | Electronic ultimate defects analyzer detecting all defects in pcb/mcm | |
| KR100301736B1 (en) | Failure analysis apparatus of semiconductor integrated circuits and method thereof | |
| US4172315A (en) | Method of manufacturing a magnetic field sensitivity indicator apparatus for evaluating magnetic fields in parts during magnetic particle inspection | |
| RU1801174C (en) | Specimen for test of moulding sands for thermal resistance and resistance to formation of expansion scabs | |
| JPS6352711B2 (en) | ||
| KR100797318B1 (en) | Contact resistance measurement device and process for probe card needle | |
| Pérez et al. | Identification of Electronic Components Susceptible to Deterioration by Atmospheric Corrosion | |
| Ryder | The interpretation of partial electrical discharge measurements with insulation damage and ageing |