JP2002025009A5 - - Google Patents
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- JP2002025009A5 JP2002025009A5 JP2000211590A JP2000211590A JP2002025009A5 JP 2002025009 A5 JP2002025009 A5 JP 2002025009A5 JP 2000211590 A JP2000211590 A JP 2000211590A JP 2000211590 A JP2000211590 A JP 2000211590A JP 2002025009 A5 JP2002025009 A5 JP 2002025009A5
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- JP
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- Prior art keywords
- magnetic film
- film
- air bearing
- magnetic
- bearing surface
- 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.)
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Claims (5)
下部第１磁性膜と下部第２磁性膜と、上部第１磁性膜と上部第２磁性膜を有し、
前記下部第２磁性膜と前記上部第１磁性膜の間にギャップ膜を有し、
前記ギャップ膜の浮上面と反対側の端部に絶縁層を有し、
前記下部第２磁性膜と前記ギャップ膜と前記上部第１磁性膜を有する積層体は、前記下部第１磁性膜と前記上部第２磁性膜の間に位置して、浮上面側の磁極先端部を構成し、
前記上部第１磁性膜の浮上面と反対側の端部の一部に、前記絶縁層の端部上面と面する突出部を有し、
前記上部第２磁性膜の浮上面側の端部は、前記積層体の浮上面より後方に位置し、
前記上部第１磁性膜の浮上面と反対側の端部の前記突出部以外の他の端部である第１の端部と、前記ギャップ膜及び前記下部第２磁性膜の浮上面と反対側の端部である第２及び第３の端部は前記絶縁層の浮上面側の端面に面しており、前記第１、第２、第３の端部は、浮上面から同一の深さ位置にあることを特徴とする磁気ヘッド。In a magnetic head having a recording unit,
A lower first magnetic film, a lower second magnetic film, an upper first magnetic film, and an upper second magnetic film;
A gap film is provided between the lower second magnetic film and the upper first magnetic film;
An insulating layer at the end opposite to the air bearing surface of the gap film;
The laminated body having the lower second magnetic film, the gap film, and the upper first magnetic film is located between the lower first magnetic film and the upper second magnetic film, and has a magnetic pole tip on the air bearing surface side. Configure
In a part of the end portion on the opposite side of the air bearing surface of the upper first magnetic film, there is a protrusion that faces the upper surface of the end portion of the insulating layer ,
The end of the upper second magnetic film on the air bearing surface side is located behind the air bearing surface of the stacked body,
A first end which is the other end of the upper first magnetic film opposite to the air bearing surface, other than the projecting portion , and a side opposite to the air bearing surface of the gap film and the lower second magnetic film The second and third end portions, which are the end portions of the insulating layer, face the end surface on the air bearing surface side of the insulating layer, and the first, second, and third end portions have the same depth from the air bearing surface. A magnetic head characterized by being in position.
前記絶縁層の浮上面側の端部における膜厚は、前記下部第２磁性膜と前記ギャップ膜の膜厚の総和より大きく、前記積層体の膜厚の総和より小さいことを特徴とする磁気ヘッド。The magnetic head according to claim 1 ,
The thickness of the insulating layer at the end on the air bearing surface side is larger than the total thickness of the lower second magnetic film and the gap film, and smaller than the total thickness of the stacked body. .
前記上部第１磁性膜の前記ギャップ膜と対向する面の面積より、前記上部第１磁性膜の上部面の面積の方が大きく、前記上部第１磁性膜と前記上部第２磁性膜は、前記上部第１磁性膜の上部平坦面と前記突出部の上部面を介して磁気的に接続されていることを特徴とする磁気ヘッド。The magnetic head according to claim 1,
The area of the upper surface of the upper first magnetic film is larger than the area of the surface of the upper first magnetic film facing the gap film, and the upper first magnetic film and the upper second magnetic film are A magnetic head, wherein the magnetic head is magnetically connected via an upper flat surface of the upper first magnetic film and an upper surface of the protruding portion.
下部第１磁性膜と下部第２磁性膜と、上部第１磁性膜と上部第２磁性膜を有し、
前記下部第２磁性膜と前記上部第１磁性膜の間にギャップ膜を有し、
前記下部第１磁性膜と前記第２上部磁性膜の間に、前記下部第１磁性膜側から、第１コイルと第２コイルを有し、
前記ギャップ膜の浮上面と反対側の端部であって前記第２コイルの下方に絶縁部を有し、
前記下部第２磁性膜と前記ギャップ膜と前記上部第１磁性膜を有する積層体は、前記下部第１磁性膜と前記上部第２磁性膜の間に位置して、浮上面側の磁極先端部を構成し、
前記上部第１磁性膜の浮上面と反対側の端部の一部に、前記絶縁部の端部上面と面する突出部を有し、
前記上部第２磁性膜の浮上面側の端部は、前記積層体の浮上面より後方に位置し、
前記上部第１磁性膜の浮上面と反対側の端部の前記突出部以外の他の端部である第１の端部と、前記ギャップ膜及び前記下部第２磁性膜の浮上面と反対側の端部である第２及び第３の端部は前記絶縁部の浮上面側の端面に面しており、
前記下部第１磁性膜の、前記第２の端部深さに相当する位置より深い位置を基点とした後方領域に、浮上面側における膜厚よりも小さい膜厚を有する薄膜部分を有し、
前記薄膜部分上における前記絶縁部の膜厚よりも、前記ギャップ膜の浮上面と反対側の端部に面した前記絶縁部の膜厚の方が薄いことを特徴とする磁気ヘッド。In a magnetic head having a recording unit,
A lower first magnetic film, a lower second magnetic film, an upper first magnetic film, and an upper second magnetic film;
A gap film is provided between the lower second magnetic film and the upper first magnetic film;
Between the lower first magnetic film and the second upper magnetic film, a first coil and a second coil are provided from the lower first magnetic film side,
An end portion on the opposite side of the air bearing surface of the gap film and having an insulating portion below the second coil ;
The laminated body having the lower second magnetic film, the gap film, and the upper first magnetic film is located between the lower first magnetic film and the upper second magnetic film, and has a magnetic pole tip on the air bearing surface side. Configure
In a part of the end opposite to the air bearing surface of the upper first magnetic film, there is a projecting portion that faces the end upper surface of the insulating portion ,
The end of the upper second magnetic film on the air bearing surface side is located behind the air bearing surface of the stacked body,
A first end which is the other end of the upper first magnetic film opposite to the air bearing surface, other than the projecting portion , and a side opposite to the air bearing surface of the gap film and the lower second magnetic film The second and third end portions that are the end portions of the insulating portion face the end surface on the air bearing surface side of the insulating portion ,
The lower first magnetic film has a thin film portion having a film thickness smaller than the film thickness on the air bearing surface side in a rear region starting from a position deeper than the position corresponding to the second end depth;
The magnetic head according to claim 1, wherein the thickness of the insulating portion facing the end opposite to the air bearing surface of the gap film is thinner than the thickness of the insulating portion on the thin film portion .
前記下部第１磁性膜の薄膜部分は、浮上面側に降下斜面部を有することを特徴とする磁気ヘッド。The magnetic head according to claim 4 , wherein
The thin film portion of the lower first magnetic film has a descending slope on the air bearing surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000211590A JP3799221B2 (en) | 2000-07-12 | 2000-07-12 | Thin film magnetic head and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000211590A JP3799221B2 (en) | 2000-07-12 | 2000-07-12 | Thin film magnetic head and manufacturing method thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002025009A JP2002025009A (en) | 2002-01-25 |
| JP2002025009A5 true JP2002025009A5 (en) | 2005-10-27 |
| JP3799221B2 JP3799221B2 (en) | 2006-07-19 |
Family
ID=18707673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000211590A Expired - Fee Related JP3799221B2 (en) | 2000-07-12 | 2000-07-12 | Thin film magnetic head and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3799221B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005149604A (en) | 2003-11-14 | 2005-06-09 | Alps Electric Co Ltd | Magnetic head and its manufacturing method |
-
2000
- 2000-07-12 JP JP2000211590A patent/JP3799221B2/en not_active Expired - Fee Related
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