JPH01129861U - - Google Patents
Info
- Publication number
- JPH01129861U JPH01129861U JP2451388U JP2451388U JPH01129861U JP H01129861 U JPH01129861 U JP H01129861U JP 2451388 U JP2451388 U JP 2451388U JP 2451388 U JP2451388 U JP 2451388U JP H01129861 U JPH01129861 U JP H01129861U
- Authority
- JP
- Japan
- Prior art keywords
- line
- wiring board
- printed wiring
- approximately
- lands
- 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
- 238000007689 inspection Methods 0.000 description 1
Landscapes
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Structure Of Printed Boards (AREA)
Description
第1図は、本考案の一実施例の印刷配線板の平
面図、第2図は従来の印刷配線板の平面図である
。 1……(集積回路)接続用パツド、2……ライ
ン、3……検査用ランド、4……基準点、5……
絶縁層。
面図、第2図は従来の印刷配線板の平面図である
。 1……(集積回路)接続用パツド、2……ライ
ン、3……検査用ランド、4……基準点、5……
絶縁層。
Claims (1)
- 160ピンの表面実装型集積回路装置を実装す
る印刷配線板において、前記集積回路装置の各ピ
ンに沿つて、標準の2.54m/m格子にのつた
検査用ランドを配列し、前記ランドと集積回路接
続用パツドとを結ぶラインの幅が略0.25mmで
あり、前記ラインを含む回路の最小間隙が略0.
33mmであり、前記ランド、前記ライン、前記パ
ツドを含む矩形の回路パターン面積が34.13
cm2以下であることを特徴とする印刷配線板。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2451388U JPH0625025Y2 (ja) | 1988-02-25 | 1988-02-25 | 印刷配線板 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2451388U JPH0625025Y2 (ja) | 1988-02-25 | 1988-02-25 | 印刷配線板 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01129861U true JPH01129861U (ja) | 1989-09-04 |
JPH0625025Y2 JPH0625025Y2 (ja) | 1994-06-29 |
Family
ID=31244422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2451388U Expired - Lifetime JPH0625025Y2 (ja) | 1988-02-25 | 1988-02-25 | 印刷配線板 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0625025Y2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02214187A (ja) * | 1989-02-15 | 1990-08-27 | Matsushita Electric Works Ltd | プリント配線板 |
-
1988
- 1988-02-25 JP JP2451388U patent/JPH0625025Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02214187A (ja) * | 1989-02-15 | 1990-08-27 | Matsushita Electric Works Ltd | プリント配線板 |
Also Published As
Publication number | Publication date |
---|---|
JPH0625025Y2 (ja) | 1994-06-29 |