JPH07504296A - 薄膜表面実装ヒューズ - Google Patents
薄膜表面実装ヒューズInfo
- Publication number
- JPH07504296A JPH07504296A JP5515129A JP51512993A JPH07504296A JP H07504296 A JPH07504296 A JP H07504296A JP 5515129 A JP5515129 A JP 5515129A JP 51512993 A JP51512993 A JP 51512993A JP H07504296 A JPH07504296 A JP H07504296A
- Authority
- JP
- Japan
- Prior art keywords
- fuse
- layer
- thin film
- forming
- termination
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/055—Fusible members
- H01H85/08—Fusible members characterised by the shape or form of the fusible member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
- H01H69/022—Manufacture of fuses of printed circuit fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/006—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistor chips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/0411—Miniature fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H2001/5888—Terminals of surface mounted devices [SMD]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/0411—Miniature fuses
- H01H2085/0414—Surface mounted fuses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/046—Fuses formed as printed circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49082—Resistor making
- Y10T29/49101—Applying terminal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49107—Fuse making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49789—Obtaining plural product pieces from unitary workpiece
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuses (AREA)
Abstract
Description
Claims (11)
- 1.絶縁基板の表面に金属薄膜を形成する工程と;金属薄膜を部分的に除去し、 一対の接点部と、これら接点部より幅狭であって接点部間を連結する少なくとも 1つの可融性リンクとを備えた特定ヒューズ素子の連続した列からなる反復パタ ーンを形成する工程と;金属薄膜とそれに隣接した基板表面を不活性化する工程 と;以上の工程によって形成された不活性化層に絶縁被覆を接着する工程と;以 上の工程によって形成された組立体を基板表面に垂直な面に沿って小板片に切断 し、各小板片に、切断操作によって形成された対向する平坦な端面と端面間に延 びる一連の並んでいるヒューズ群とを形成し、各ヒューズ素子の一方の接点部の 縁を前記各端面で露出させる工程と;各端面上に導電性終端を形成し、各終端と 端面に暴露する接点部の縁を電気的に連結する工程と; 前記小板片を個々のヒューズへ切断する工程と;を有する表面実装ヒューズめ製 造方法。
- 2.請求項1に記載の表面実装ヒューズの製造方法において、前記終端を形成す る工程は、 各端面に導電層を形成する工程と; 導電層をはんだで被覆する工程と; を有する表面実装ヒューズの製造方法。
- 3.請求項1に記載の表面実装ヒューズの製造方法において、小板片は端面を区 切る角を含み、この角の回りに広がるように終端を形成する工程を有する表面実 装ヒューズの製造方法。
- 4.請求項3に記載の表面実装ヒューズの製造方法において、基板と被覆がガラ スであって、前記終端を形成する工程は、各端面上に高導電性金属層を蒸着する 工程と;前記層上に、高率電性金属層を濡らすが前記ガラス層を濡らさない低融 点金属層を蒸着する工程と;を有し、 使用中にヒューズ温度が低融点金属の融点まで上がると、高導電性金属層が低融 点金属に溶解し、終端において電気的不連続を生じさせるヒューズを得る表面実 装ヒューズの製造方法。
- 5.導電薄膜を絶縁性基板の表面上に蒸着する工程と;前記薄膜を部分的に除去 し、一対の接点部と、これら接点部より幅狭であって接点部間を連結する少なく とも1つの可融性リンクとを備えた複数のヒューズ素子からなる列を、列の中で ヒューズ間に間隔をおいて、列同士を平行に形成する工程と; 薄膜とその周囲の基板表面に不活性化層を作成する工程と;不活性化層に絶縁被 覆を接着剤で結合する工程と;以上の工程によって形成された層状の組立体を前 記列の方向と薄膜とに対してともに垂直な平行面に沿って切断し、隣接したヒュ ーズの接点部を横切る平坦面を形成することによって、接点部の縁を露出させる とともに並列に配置されたヒューズの小板片を形成する工程と; 以上の工程によって形成された各平坦面上に導電層を蒸着することによって、露 出した接点部の縁を終端層に電気的に接続する工程と;ヒューズの小板片を個々 のヒューズに切断する工程と;を有する表面実装ヒューズの製造方法。
- 6.平坦な上側表面と、この上側表面に垂直な端面を有するほぼ方形の絶縁基板 と; 基板の上側表面上に蒸着され、基板の端面と面一に外縁を露出する一対の接点部 と、これら接点部より幅狭であって接点部間を連結し、所定の通過電流に応じて 溶断する少なくとも1つのリンクとを備えたヒューズ素子を形成する導電薄膜と ; 薄膜素子を被覆する不活性化層と; 基板と同一の広がりと端面とを有し、密封層がエポキシ層によって不活性化層に 結合され、前記基板との端面および薄膜素子の外縁とともに表面実装ヒューズの 対向する端面を形成する絶縁被覆と;ヒューズの各端面を覆い、ヒューズ素子の 一方の接点部の外縁と電気的に接触するとともに、基板の底面の一部に沿って延 びる脚部と被覆の上面の一部に沿って延びる脚部とを有する導電性終端と;を備 える薄膜表面実装ヒューズ。
- 7.請求項6に記載のヒューズにおいて、不活性化層が化学蒸着シリカを含むヒ ューズ。
- 8.請求項6に記載のヒューズにおいて、不活性化層がプリントガラスの厚い層 を含むヒューズ。
- 9.請求項6に記載のヒューズにおいて、各終端がはんだで被覆された金属層を 含むヒューズ。
- 10.請求項6に記載のヒューズにおいて、被覆がガラス層を含むヒューズ。
- 11.請求項6に記載のヒューズにおいて、各終端は、ヒューズの対応する端面 と接触する導電層と、この導電層上に配置された低融点金層層とを含み、ヒュー ズの温度が所定の水準を超えたとき導電層が低融点層に溶け込み終端およびヒュ ーズ素子間の電気的接触が遮断されるヒューズ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/846,264 US5166656A (en) | 1992-02-28 | 1992-02-28 | Thin film surface mount fuses |
US846264 | 1992-02-28 | ||
PCT/US1993/001915 WO1993017442A1 (en) | 1992-02-28 | 1993-02-22 | Thin film surface mount fuses |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07504296A true JPH07504296A (ja) | 1995-05-11 |
JP2724044B2 JP2724044B2 (ja) | 1998-03-09 |
Family
ID=25297391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5515129A Expired - Lifetime JP2724044B2 (ja) | 1992-02-28 | 1993-02-22 | 薄膜表面実装ヒューズ |
Country Status (7)
Country | Link |
---|---|
US (3) | US5166656A (ja) |
EP (1) | EP0628211B1 (ja) |
JP (1) | JP2724044B2 (ja) |
KR (1) | KR0168466B1 (ja) |
AU (1) | AU3787293A (ja) |
DK (1) | DK0628211T3 (ja) |
WO (1) | WO1993017442A1 (ja) |
Families Citing this family (102)
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---|---|---|---|---|
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- 1993-02-22 KR KR1019940702912A patent/KR0168466B1/ko not_active IP Right Cessation
- 1993-02-22 DK DK93907172.6T patent/DK0628211T3/da active
- 1993-02-22 EP EP93907172A patent/EP0628211B1/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
US5296833A (en) | 1994-03-22 |
WO1993017442A1 (en) | 1993-09-02 |
DK0628211T3 (da) | 1996-08-05 |
JP2724044B2 (ja) | 1998-03-09 |
EP0628211B1 (en) | 1996-04-10 |
KR950700602A (ko) | 1995-01-16 |
KR0168466B1 (ko) | 1999-01-15 |
US5228188A (en) | 1993-07-20 |
US5166656A (en) | 1992-11-24 |
AU3787293A (en) | 1993-09-13 |
EP0628211A1 (en) | 1994-12-14 |
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