WO2006068228A1 - 半田処理方法および該処理を施したコネクタ - Google Patents
半田処理方法および該処理を施したコネクタ Download PDFInfo
- Publication number
- WO2006068228A1 WO2006068228A1 PCT/JP2005/023613 JP2005023613W WO2006068228A1 WO 2006068228 A1 WO2006068228 A1 WO 2006068228A1 JP 2005023613 W JP2005023613 W JP 2005023613W WO 2006068228 A1 WO2006068228 A1 WO 2006068228A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- curable resin
- ultraviolet curable
- conductor
- contact
- connector
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10287—Metal wires as connectors or conductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10954—Other details of electrical connections
- H05K2201/10977—Encapsulated connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3405—Edge mounted components, e.g. terminals
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3421—Leaded components
Definitions
- the present invention relates to a process after soldering a conductor in a connector, and in particular, is a processing method capable of preventing a solder ball or migration that causes a short circuit or the like by covering a soldered portion with a resin.
- the electrical connection such as the connection between the contact formed on the housing of the connector and the conductive wire is usually performed by a soldering apparatus with solder and physical contact.
- soldering apparatus with solder and physical contact.
- small communication devices such as mobile phones require many electrical components in a limited space in order to realize high performance, and therefore, connectors are also required to be miniaturized.
- a connector has a large number of contacts.
- a part that becomes a heat source physically contacts the target as in a normal soldering device. It is difficult to manufacture a connector.
- the heat source may cause thermal deformation near the solder, for example, the housing.
- solder is applied to the substrate, the entire substrate is heated and soldered, infrared rays and other heat rays are irradiated, and hot air is blown Soldering by such as. These methods are called so-called reflow types.
- the substrate is heated in areas other than the area to be soldered, such as a connector.
- areas other than the area to be soldered such as a connector.
- only the minimum area necessary for soldering is heated by using a light beam. Can be proposed.
- a distance between a conductor and an adjacent conductor that is, a pitch is 1 mm or less. Also against the connector insertion direction The horizontal width is about lcm. Since such a small connector has a small pitch, soldering using an optical beam is performed.
- soldering using this light beam has the advantage that the solder can be melted in a short time and has the advantage that the solder can be melted in a short time. It may remain in a ball shape.
- ion migration (which may be simply referred to as migration or electo port chemical migration) occurs in which an electrochemical reaction is caused by energization and the metal is ionized and melted and deposited. Therefore, in a connector having a small pitch as described above, such ball-shaped solder or metal pieces can cause a short circuit between conductors or contacts.
- the present invention provides a method for soldering a contact portion and a conductor installed in a housing, and at least soldering the contact portion and the conductor after soldering.
- a solder processing method comprising a step of applying an ultraviolet curable resin so as to cover the exposed portion and a step of irradiating the ultraviolet curable resin with ultraviolet rays to cure the ultraviolet curable resin. Since this method covers the contact part, conductor, and solder with resin, the ball-shaped solder is fixed so that it cannot move, so there is no short circuit. Also, the part covered with resin is shielded from air and moisture, so no electrification migration occurs.
- Such a method is particularly effective when the contact portion and the conductor are soldered by a light beam. Further, in the present invention, after the contacts and conductors installed in the housing are soldered, an ultraviolet curable resin is applied so as to cover at least the soldered portion, and the ultraviolet curable resin is irradiated with ultraviolet rays to thereby apply the ultraviolet curable resin. Provide a hardened and soldered connector. As a result, a highly reliable connector can be provided.
- the resin is applied and cured so as to cover at least the soldered portion in the connection between the contact portion installed in the housing and the conductor, the ball-shaped solder generated by the soldering, Metals deposited by so-called ion migration Short circuit between adjacent contacts or conductors can be prevented.
- this invention has the said effect with respect to the soldering process by a light beam. Furthermore, by providing a connector that has been treated in this way, it is possible to greatly reduce the occurrence of defects due to short circuits.
- FIG. 1 is a perspective view of a connector before an ultraviolet curable resin is applied.
- FIG. 2 is a top view of the connector before the application of the ultraviolet curable resin.
- FIG. 3 is a top view of the connector after applying an ultraviolet curable resin.
- FIG. 4 is a side view of the connector after application of an ultraviolet curable resin.
- FIG. 5 is a front view of the connector after application of an ultraviolet curable resin.
- FIG. 6 is an enlarged view of the conductor 4 after the application of the ultraviolet curable resin.
- Fig. 1 is a perspective view of the connector before UV resin is applied.
- the connector has a housing 1, and a plurality of contacts are arranged in line in the housing 1.
- a plurality of thin wires 3 are installed corresponding to the contact 9.
- the force for forming the wall portion 2 on the housing 1 for positioning and ensuring the separation from the adjacent contact is not relevant to the essence of the present invention. It will be apparent to those skilled in the art that the present invention may be practiced.
- the top view and the side view omit the wall 2.
- the conductor 9 of the fine wire 3 is installed in the contact 9 of the woozing 1.
- the thin wire is a coaxial thin wire in this embodiment, but it may be a flat cable having a plate shape by arranging a plurality of cables that need not be a coaxial thin wire in parallel. Furthermore, the conductor 4 and the contact 9 are soldered and electrically connected. The part indicated by reference numeral 5 is solder.
- FIG. 2 is a top view of the connector of FIG. The wall 2 described above is omitted.
- the soldering portion 8 where the contact 9 and the conductor 4 are soldered may be a part as shown in the figure as necessary. However, the entire conductor 4 may be the soldered portion 8.
- the soldering portion 8 is formed on a plurality of conductors 4 in substantially the same region near the center of the conductor 4.
- FIG. 3 shows the state after the application of UV-curing resin.
- the ultraviolet curable resin 7 is applied so as to cover at least the soldering portion 8, and when a plurality of conductors 4 are installed in the housing 1, it is applied so as to cover at least the contact region. Also, the UV curable resin 7 should not cover the entire exposed part of the conductor 4.
- FIG. 4 is a side view of the state after applying the ultraviolet curable resin. It can be seen that the ultraviolet curing resin 7 covers the side surface of the conductor 4, the solder 5, and a part of the contact 9. Since the ultraviolet curable resin 7 is in a fluid state until it is irradiated with ultraviolet rays, it can enter the side surface of the conductor 4 or a narrow region near the contact surface between the conductor 4 and the contact 9 when applied.
- FIG. 5 is a front view after the ultraviolet curable resin is applied.
- the soldering part 5 and the soldering area 8 are not shown.
- the ultraviolet curable resin 7 is irradiated with the ultraviolet rays 10 to cure the ultraviolet curable resin.
- the resin is cured, and the portion covered with the resin is isolated from moisture and the like. Therefore, ion migration does not occur even when the connector is energized.
- the soldering of the contact 9 and the conductor 4 is performed by a light beam.
- the solder melts at a high temperature in a very short time, so the solder remains in a ball shape.
- the soldering portion 8 is covered with the ultraviolet curable resin, so that the ball-like solder is also fixed in the resin. As a result, even when vibration is applied, it is possible to prevent the ball-shaped solder from coming into contact with a nearby conductor or contact and causing a short circuit.
- FIG. 6 is an enlarged top view showing a portion A covered with the ultraviolet curable resin 7 of one conductor 3 shown in FIG. In Fig. 6, the middle part of conductor 4 is omitted.
- the ultraviolet curable resin 7 since the ultraviolet curable resin 7 is in a fluid state until it is irradiated with ultraviolet rays, the contact 9 in the region near the soldering portion 8 is also covered. As a result, the exposed contact 9 is also shielded from air or moisture, and deterioration of the contact 9 can be prevented.
- the present invention is a miniaturized connector that is said to have a particularly narrow pitch, and prevents a phenomenon such as a short circuit even when it is difficult to ensure a sufficient gap between the P-contacts. That power S.
- the soldering portion 8 is covered with the ultraviolet curable resin 7, but in the present invention, it may be covered with plastic or other types of resins.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004370566A JP2006179640A (ja) | 2004-12-22 | 2004-12-22 | 半田処理方法および該処理を施したコネクタ |
JP2004-370566 | 2004-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006068228A1 true WO2006068228A1 (ja) | 2006-06-29 |
Family
ID=36601825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/023613 WO2006068228A1 (ja) | 2004-12-22 | 2005-12-22 | 半田処理方法および該処理を施したコネクタ |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2006179640A (ja) |
TW (1) | TW200628036A (ja) |
WO (1) | WO2006068228A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0371585A (ja) * | 1989-08-09 | 1991-03-27 | Showa Electric Wire & Cable Co Ltd | 電線のコネクタ接続構造 |
JPH11168275A (ja) * | 1997-12-05 | 1999-06-22 | Hitachi Ltd | 局部加熱接続方法及びリペア方法 |
JP2002001521A (ja) * | 2000-06-26 | 2002-01-08 | Fine Device:Kk | レーザー式はんだ付け方法及び装置 |
JP2003178826A (ja) * | 2001-12-07 | 2003-06-27 | Hitachi Cable Ltd | 極細多心ケーブルの端末接続部及び端末接続方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2942994B2 (ja) * | 1989-11-30 | 1999-08-30 | 日本エー・エム・ピー株式会社 | 電線の結線方法および結線構造 |
JP3438932B2 (ja) * | 1994-02-18 | 2003-08-18 | オリンパス光学工業株式会社 | 撮像装置組立方法 |
JP2001189403A (ja) * | 1999-10-22 | 2001-07-10 | Ibi Tech Co Ltd | 配線基板 |
JP2002190663A (ja) * | 2000-12-21 | 2002-07-05 | Taiyo Yuden Co Ltd | ハイブリッドic |
JP2003163445A (ja) * | 2001-11-29 | 2003-06-06 | Fujitsu Ltd | 電子部品の接合方法 |
-
2004
- 2004-12-22 JP JP2004370566A patent/JP2006179640A/ja active Pending
-
2005
- 2005-11-28 TW TW094141785A patent/TW200628036A/zh unknown
- 2005-12-22 WO PCT/JP2005/023613 patent/WO2006068228A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0371585A (ja) * | 1989-08-09 | 1991-03-27 | Showa Electric Wire & Cable Co Ltd | 電線のコネクタ接続構造 |
JPH11168275A (ja) * | 1997-12-05 | 1999-06-22 | Hitachi Ltd | 局部加熱接続方法及びリペア方法 |
JP2002001521A (ja) * | 2000-06-26 | 2002-01-08 | Fine Device:Kk | レーザー式はんだ付け方法及び装置 |
JP2003178826A (ja) * | 2001-12-07 | 2003-06-27 | Hitachi Cable Ltd | 極細多心ケーブルの端末接続部及び端末接続方法 |
Also Published As
Publication number | Publication date |
---|---|
TW200628036A (en) | 2006-08-01 |
JP2006179640A (ja) | 2006-07-06 |
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