JPH0331736U - - Google Patents
Info
- Publication number
- JPH0331736U JPH0331736U JP1989092485U JP9248589U JPH0331736U JP H0331736 U JPH0331736 U JP H0331736U JP 1989092485 U JP1989092485 U JP 1989092485U JP 9248589 U JP9248589 U JP 9248589U JP H0331736 U JPH0331736 U JP H0331736U
- Authority
- JP
- Japan
- Prior art keywords
- exposure
- exposure mask
- crystal ferrite
- grooves
- protrusions
- 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.)
- Granted
Links
- 239000013078 crystal Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989092485U JPH075526Y2 (ja) | 1989-08-08 | 1989-08-08 | 露光用マスク |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989092485U JPH075526Y2 (ja) | 1989-08-08 | 1989-08-08 | 露光用マスク |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0331736U true JPH0331736U (en]) | 1991-03-27 |
| JPH075526Y2 JPH075526Y2 (ja) | 1995-02-08 |
Family
ID=31641908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989092485U Expired - Lifetime JPH075526Y2 (ja) | 1989-08-08 | 1989-08-08 | 露光用マスク |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075526Y2 (en]) |
-
1989
- 1989-08-08 JP JP1989092485U patent/JPH075526Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH075526Y2 (ja) | 1995-02-08 |