JP2009205885A - Flexible printed wiring board with fixed contact for switching, input module, and portable apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible printed wiring board with a fixed contact for switching capable of securing reliable switching and an excellent click feeling, and suppressing breakage of a cover-lay film; an input module; and a portable apparatus. <P>SOLUTION: In this flexible printed wiring board, a conductive pattern 52 and a cover-lay film 53 are arranged on a base film 51; first and second fixed contacts are arranged on the conductive pattern; and switching between the first and second fixed contacts are carried out by pressing a dome-like moving contact. In the flexible printed wiring board, a lead wire 521a of a first fixed contact 521 is extended to the outside through a partially opened region 522a of a second fixed contact 522; the cover-lay film 53 keeps the first and second fixed contacts in an exposed state and covers the lead wire 521a passing through the partially-opened region; and the height of at least either of the first and second fixed contacts on the base film 51 is set larger than the height of the conductive pattern 52 in the circumference covered with the cover-lay film 53. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a flexible printed wiring board provided with a fixed contact for switching, an input module using the flexible printed wiring board, and a portable device using the module.

In portable devices such as mobile phones, notebook computers, digital cameras, and the like, generally, a required input operation can be performed using an input module. As a part of the configuration of the input module, a flexible printed wiring board having a fixed contact for switching on a conductive pattern is used so that a switching operation is performed in accordance with an input operation.
Further, in the portable device such as the cellular phone, a dome-like member is used as an intermediary member for connecting a pressing switch operation from an input operation unit having an input key to a connection / disconnection operation between a pair of fixed contacts of the flexible printed wiring board. In many cases, movable contacts are used.
As a conventional technique for performing switching using the dome-shaped movable contact, for example, Japanese Patent Application Laid-Open No. 2002-157939 discloses a switch structure of a flexible printed circuit. This prior art switch structure is such that a rubber dome (3) is disposed on a pair of divided fixed contacts provided on a conductive pattern (2b). When the rubber dome (3) is pushed, the carbon contact (3d) (movable contact) connects the pair of contacts.
Japanese Unexamined Patent Application Publication No. 2004-79442 discloses a key sheet module for a mobile phone. FIG. 4 discloses an island-shaped fixed contact (6) and an annular fixed contact (5) surrounding the periphery as a pair of fixed contacts configured on the circuit board. A structure in which the island-shaped fixed contact (6) and the annular fixed contact (5) surrounding the periphery thereof are connected by pressing the contact spring (4) of the dome is disclosed.
Japanese Patent Laid-Open No. 2007-141871 discloses a sheet switch and its operation sheet. FIG. 4A discloses an island-shaped fixed contact (5) and an annular fixed contact (terminal 6) surrounding it as a pair of fixed contacts configured on the circuit board. A structure is disclosed in which the lead wire of the island-shaped fixed contact (5) extends to the outside from a partially open region of the enclosure of the annular fixed contact (terminal 6).
JP 2002-157939 A JP 2004-79442 A JP 2007-141871 A

  In the switch structure disclosed in Patent Document 1, the pair of fixed contacts are simply separated (divided) on both sides, and therefore the rubber dome (3) is directly disposed on the fixed contacts. I can't. This is because both fixed contacts are always in a conductive state. For this reason, in the switch structure of patent document 1, it is set as the structure which installs a rubber dome (3) on the coverlay (2c) in the outer side of both fixed contacts, and a high position. However, in such a structure, there arises a problem that the size of the individual rubber dome (3) must be increased and the bending depth of the rubber dome (3) required for switching must be increased. . Of course, in the switch structure of Patent Document 1, since the pair of fixed contacts are simply arranged on both sides, a pair of fixed contacts including one fixed contact and an annular fixed contact surrounding the fixed contact are employed. There is also a problem that the reliability and reliability of the switching operation are inferior compared to those.

  The prior art disclosed in Patent Document 2 employs a structure in which a pair of fixed contacts includes an island-shaped fixed contact (6) and an annular fixed contact (5) surrounding it. And, in order to prevent continuous conduction between the fixed contacts (5) and (6), the lead wire of the island-shaped fixed contact (6) is connected to the opposite side through the through hole (7) provided in the substrate (1). The structure extends to the surface of the substrate. However, such a structure has a problem that a conductive pattern has to be formed on both sides of the substrate.

  In the prior art disclosed in Patent Document 3, when the metal dome (7) is installed on the annular fixed contact (terminal 6), the metal dome (7) is connected to the lead wire of the fixed contact (5). Will also be grounded and will always be in a conductive state. For this reason, the lead wire portion where the metal dome (7) is grounded is covered with an insulating layer such as a coverlay. However, since the height of the lead wire portion covered with the insulating layer such as the coverlay becomes higher than the height of the annular fixed contact (6), the metal dome (7) to be installed has a tilted posture as a result. Occurs.

A situation in which the dome-shaped movable contact such as a metal dome is tilted in the conventional technology such as Patent Document 3 will be described with reference to FIGS.
9 is a plan view of the flexible printed wiring board, FIG. 10 is a KK sectional view of FIG. 9, and FIG. 11 is an LL sectional view of FIG.
A conductive pattern 200 provided with a pair of fixed contacts 210 and 220 is laminated on one side surface of the base film 100, and a coverlay film 300 covering the conductive wire pattern 200 except for the pair of fixed contacts 210 and 220 is laminated. ing. The pair of fixed contacts 210 and 220 includes an island-shaped first fixed contact 210 and an annular second fixed contact 220 surrounding the first fixed contact 210. The lead wire 211 of the first fixed contact 210 is laminated so as to extend to the external region through a partially open region 221 surrounded by the second fixed contact 220. A lead wire 211 portion of the first fixed contact 210 is covered with a portion 310 of the cover lay film 300. Reference numeral 400 denotes a dome-shaped movable contact. The dome-shaped movable contact 400 is installed on the second fixed contact 220, and a part of the dome-shaped movable contact 400 is installed on a part 310 of the cover lay film 300 that covers the lead wire 211. Yes.
FIG. 10 is a KK cross section in a state where the dome-shaped movable contact 400 is installed. Moreover, the LL cross section is FIG. As can be seen from FIG. 11, the dome-shaped movable contact 400 is tilted. Further, as can be seen in FIG. 10, the dome-shaped movable contact 400 is partially lifted, and the installation on the second fixed contact 220 becomes unstable. In such an inclined installation state of the dome-shaped movable contact 400, the reliability of the switch operation is lowered, and the click feeling is lowered. Furthermore, since the ground contact surface by the dome-shaped movable contact 400 is unevenly distributed, the portion 310 of the cover lay film 300 with which the dome-shaped movable contact 400 abuts is likely to be damaged. Of course, there also arises a problem that the contact depth to the first fixed contact 210 becomes deep.

  The shape of the dome-shaped movable contact 400 is changed from a round shape to a shape obtained by cutting both sides of the dome-shaped movable contact 400 so that the movable contact does not sit on a part 310 of the cover lay film 300 that covers the lead wire 211. It is also possible to do. However, with such a cut movable contact, the repulsive force of the movable contact is weakened, leading to a reduction in click feeling.

  Therefore, the present invention solves the problems such as lowering of switching reliability due to tilting of the dome-shaped movable contact in the prior art, lowering of click feeling, breakage of the coverlay film, etc., and surrounding the island-shaped fixed contact. Even in the case of switching with a combination of dome-shaped movable contacts, a flexible printed wiring board comprising a pair of fixed contacts with a ring-shaped fixed contact does not form a double-sided conductive pattern via a through-hole, but forms a dome shape. Providing a flexible printed wiring board with a fixed contact for switching that can ensure reliable switching and good click feeling by a movable contact, and can prevent damage to the coverlay film, and such flexibility Input module using a printed wiring board, using the module The provision of band equipment an object of the present invention.

A flexible printed wiring board having a fixed contact for switching according to the present invention includes a conductive pattern and a coverlay film covering the conductive pattern on a base film, and the conductive pattern has a first fixed as a fixed contact for switching. A dome-shaped movable contact that is combined with the fixed contact, and the dome-shaped movable contact between the first fixed contact and the second fixed contact. A flexible printed wiring board having a fixed contact for switching configured to be switched between,
The lead wire of the first fixed contact is configured to extend to an external region through a partially open region of the enclosure of the second fixed contact,
The cover lay film is configured to cover the lead wire passing through a partially open region of the enclosure of the second fixed contact while holding the first fixed contact and the second fixed contact in an exposed state without covering. And
The height of at least one of the first fixed contact and the second fixed contact on the base film is configured to be higher than the height of the surrounding conductive pattern covered with the coverlay film. It is said.

In the first feature of the present invention described above, if the height of the first fixed contact on the base film is higher than the height of the surrounding conductive pattern covered with the coverlay film, the dome-shaped movable contact is It is possible to prevent the sinking depth necessary for grounding to one fixed contact from becoming too deep, and to ensure reliable switching.
Further, if the height of the second fixed contact on the base film is made higher than the height of the surrounding conductive pattern covered with the coverlay film, the difference in height between the second fixed contact and the coverlay film. Therefore, the installation posture of the dome-shaped movable contact can be reduced. Therefore, reliable switching by the dome-shaped movable contact can be ensured, and a good click feeling can be maintained. Further, the concentration of the pressing force by the dome-shaped movable contact can be alleviated to improve the damage resistance of the coverlay film.
Moreover, if the height on the base film in both the first fixed contact and the second fixed contact is configured to be higher than the height of the surrounding conductive pattern covered with the coverlay film, the dome-shaped movable contact is made the first. The depth of sinking required for grounding the fixed contact can be reduced, and the inclination of the installation position of the dome-shaped movable contact can be further reduced. Therefore, reliable switching can be ensured, a good click feeling can be maintained, and the breakage resistance of the coverlay film can be improved.

  In addition to the first feature of the present invention, the flexible printed wiring board provided with the fixed contact for switching according to the present invention has a height on the base film of the second fixed contact. The second feature is that the coverlay film is formed to have the same height as that on the base film.

  According to the second feature of the present invention, in addition to the operational effects of the first feature of the present invention, the height of the second fixed contact on the base film is around the second fixed contact. Since the cover lay film is configured to have the same height as the base film, the dome-shaped movable contact can be a dome-shaped movable contact. The inclination in the installation posture of the movable movable contact can be eliminated. Therefore, without forming a double-sided conductive pattern through a through hole, reliable switching is ensured by a round dome-shaped movable contact, and a good click feeling is maintained, and the damage resistance of the coverlay film is improved. Can be made.

  In addition to the first feature of the present invention, the flexible printed wiring board provided with the fixed contact for switching according to the present invention has a coverlay around the first fixed contact, the second fixed contact, and the second fixed contact. A third feature is that the height of the film on the base film is the same.

According to the third aspect of the present invention, in addition to the function and effect of the first aspect of the present invention, the base of the coverlay film around the first fixed contact, the second fixed contact, and the second fixed contact. Since the height on the film is configured to the same height,
The dome-shaped movable contact is not limited to a shape in which a part of the dome is cut, and even if a circular movable contact is used, the inclination in the installation posture of the dome-shaped movable contact can be eliminated. Therefore, without configuring a double-sided conductive pattern through a through hole, it is possible to ensure reliable switching with a dome-shaped movable contact, maintain a good click feeling, and improve the damage resistance of the coverlay film it can.
In addition, since the first fixed contact is at the same height as the second fixed contact and the surrounding cover lay film, the submerged depth required for grounding the dome-shaped movable contact to the first fixed contact is increased. It is possible to prevent excessive switching, and reliable switching can be performed. Moreover, the damage resistance of the dome-shaped movable contact can be sufficiently secured.

  Moreover, the flexible printed wiring board provided with the fixed contact for switching according to the present invention has the height of the first fixed contact, the second fixed contact, and the coverlay film in addition to any one of the first to third features. A fourth feature is that the adjustment is made by increasing or decreasing the thickness of the conductive pattern portions corresponding to them.

  According to the fourth feature, in addition to the function and effect of any one of the first to third features, the height adjustment of the first fixed contact, the second fixed contact, and the coverlay film is as follows: Since the thickness of the conductive pattern portions corresponding to them is increased or decreased, the height of the first fixed contact, the second fixed contact, and the coverlay film can be easily adjusted.

  An input module according to the present invention includes a flexible printed wiring board provided with the switching fixed contact according to any one of the first to fourth features, a dome-shaped movable contact combined with the wiring board, A fifth feature is that the dome-shaped movable contact is provided with at least an input operation unit that applies a pressing force by an input operation.

  According to the input module described in the fifth feature of the present invention, reliability and durability using a dome-shaped movable contact can be achieved without using a flexible printed wiring board having a double-sided conductive pattern through a through hole. Certain switching can be ensured and a good click feeling can be obtained.

  According to a sixth aspect of the present invention, a portable device includes at least the input module according to the fifth aspect.

  According to the portable device according to the sixth feature, reliable and durable switching is ensured by using a dome-shaped movable contact without using a flexible printed wiring board having a double-sided conductive pattern through a through hole. In addition, a good click feeling can be obtained.

  According to the flexible printed wiring board, the input module, and the portable device provided with the fixed contact for switching according to the present invention, it is possible to obtain a reliable switching and a good click feeling in the one using the dome-shaped movable contact. it can.

  With reference to the following drawings, a flexible printed wiring board, an input module, and a portable device provided with a fixed contact for switching according to an embodiment of the present invention will be described for understanding of the present invention. However, the following description is an embodiment of the present invention, and does not limit the contents described in the claims.

  1 is a perspective view showing a mobile phone as a mobile device according to the first embodiment of the present invention, FIG. 2 is a plan view of the input module of the mobile phone shown in FIG. 1, and FIG. 3 is a diagram of the input module shown in FIG. FIG. 4 is a plan view showing a fixed contact for switching provided on a flexible printed wiring board used for an input module. FIG. 5 is a sectional view taken along the line AA of FIG. The state which combined the dome shaped movable contact with the fixed contact for switching of is shown. FIG. 6 is a cross-sectional view taken along the line BB of FIG. 4 and shows a state in which a dome-shaped movable contact is combined with a fixed contact for switching of a flexible printed wiring board.

  First, referring to FIG. 1, a mobile phone 1 according to the present embodiment includes an input unit 1a and a display unit 1b. The display part 1b can be freely opened and closed to the input part 1a via a hinge part 1c.

  2 and 3, the input unit 1a includes an input module 2 in its case. The input module 2 includes an input operation unit 10, a light guide unit 20, a dome switch unit 30, a light source 40 such as an LED, and a flexible printed wiring board 50.

The input operation unit 10 is a part for performing an input operation, and includes an input key 11 exposed to the input unit 1a and an input sheet 12 formed integrally with the input key 11. The input sheet 12 and the input key 11 can be composed of rubber.
The light guide unit 20 guides light from the light source 40 to the input key 11 of the input operation unit 10 and illuminates the urgent key 11. A light reflection pattern 22 is formed on the light guide plate 21. Reference numeral 23 denotes a pressing projection, which is provided in the light guide 20, but may be provided in the input operation unit 10.

The dome switch section 30 includes a dome-shaped movable contact 31 called a dome metal and a dome sheet 32 made of a soft elastic sheet such as rubber for backing it up. The dome switch unit 30 is disposed on the flexible printed wiring board 50.
The flexible printed wiring board 50 includes a base film 51, a conductive pattern 52 formed on the upper surface thereof, and a coverlay film 53 that covers the conductive pattern 52.
The base film 51 can be made of an insulating resin material such as polyimide.
The conductive pattern 52 can be configured by forming a pattern of copper foil on the base film 51, for example.
The coverlay film 53 can also be made of an insulating resin material such as polyimide.

Referring also to FIG. 4, the conductive pattern 52 includes a first fixed contact 521 and a second fixed contact 522 as a fixed contact for switching.
The first fixed contact 521 is an island-shaped fixed contact, and the second fixed contact 522 is an annular fixed contact surrounding the first fixed contact 521. When the dome-shaped movable contact 31 installed on the second fixed contact 522 is pushed, the central portion of the dome-shaped movable contact 31 sinks downward and is grounded to the first fixed contact 521. By this grounding, the first fixed contact 521 and the second fixed contact 522 are conducted through the dome-shaped movable contact 31.
The lead wire 521a of the first fixed contact 521 is extended to an external region through a partially open region 522a surrounded by the second fixed contact 522. By configuring the lead wire 521a in this way, it is possible to avoid a normal conduction state between the first fixed contact 521 and the second fixed contact 522 without providing a through hole in the base film 51.
The cover lay film 53 holds the first fixed contact 521 and the second fixed contact 522 in an exposed state without covering them. However, the lead wire 521a portion of the first fixed contact 521 passing through the partially open region 522a of the enclosure of the second fixed contact 522 is configured to be covered with the lead wire covering portion 531 of the cover lay film 53. With this configuration, even if the dome-shaped movable contact 31 is installed on the annular second fixed contact 522 and combined, the first fixed contact 522 and the second fixed contact 522 are always in a conductive state. Can be avoided.

5 and 6, in the present embodiment, the height of the second fixed contact 522 on the base film 51 is set on the base film 51 of the cover lay film 53 around the second fixed contact 522. The height is the same. More specifically, the height of the second fixed contact 522 is the same as the height of the lead wire covering portion 531 of the cover lay film 53. As a result, the annular lower end surface of the dome-shaped movable contact 31 comes into contact with the second fixed contact 522 and the lead wire covering portion 531 flush with the second fixed contact 522. Is installed without tilting. In other words, even if a round dome-shaped movable contact 31 that does not cut any part of the dome shape is used, the round movable contact 31 is not inclined and installed. Since the inclined installation is not performed, the pressing force is not evenly distributed and is applied evenly over the entire surface. As a result, the lead wire covering portion 531 of the coverlay film 53, the second fixed contact 522, and the dome-shaped movable contact 31 are resistant to damage. Improves. Of course, since the dome-shaped movable contact 31 does not tilt, reliable switching and good click feeling can be ensured.
In addition, when the round movable contact 31 is used, a click feeling is easily ensured as compared with a case where a part is cut.

In order to make the height of the second fixed contact 522 the same as the height of the coverlay film 53, in the present embodiment, the conductive pattern 52 is electrically conductive with respect to the portion corresponding to the second fixed contact 522. This is configured to increase the thickness of the second fixed contact 522 by increasing the thickness of the conductive metal.
On the other hand, the first fixed contact 521 remains the original laminated thickness of the conductive pattern 52 and does not increase the laminated thickness by increasing the thickness.

  A second embodiment of the present invention will be described with reference to FIGS. 7 is a cross-sectional view corresponding to the AA cross section of FIG. 4 in the first embodiment, and shows a state in which a dome-shaped movable contact is combined with a switching fixed contact of the flexible printed wiring board. 8 is a cross-sectional view corresponding to the BB cross section of FIG. 4 and shows a state in which a dome-shaped movable contact is combined with a switching fixed contact of the flexible printed wiring board.

In the second embodiment, the height of the first fixed contact 521 and the second fixed contact 522 on the base film 51 is the same as the height of the surrounding coverlay film 53 on the base film 51. Yes. More specifically, the height of the first fixed contact 521 and the second fixed contact 522 is the same as the height of the lead wire covering portion 531 of the cover lay film 53.
Accordingly, the dome-shaped movable contact 31 is not inclined and can be installed on the second fixed contact 522 and the lead wire covering portion 531 of the coverlay film 53. Even if the round dome-shaped movable contact 31 is used, the inclined state does not occur, so that the pressing force is evenly applied to the whole, the lead wire covering portion 531 of the cover lay film 53, the second fixed contact 522, and the dome-shaped movable contact. The breakage resistance of the contact 31 is improved. Of course, since the dome-shaped movable contact 31 does not tilt, reliable switching and good click feeling can be ensured.
Further, since the height of the first fixed contact 521 is the same as the height of the second fixed contact 522 and the lead wire covering portion 531 of the cover lay film 53, the required submerged depth of the dome-shaped movable contact 31 is too deep. Therefore, stable and reliable switching can be ensured, and damage resistance can be maintained well.

  In order to make the height of the first fixed contact 521 and the second fixed contact 522 the same as the height of the cover lay film 53, this embodiment corresponds to the first fixed contact 521 of the basic conductive pattern 52. The portion corresponding to the second fixed contact 522 is plated with a conductive metal, thereby increasing the thickness of the first fixed contact 521 and the second fixed contact 522 to increase the thickness. is doing.

  In the first embodiment and the second embodiment, the thickness of the first fixed contact 521 and the second fixed contact 522 is increased by plating or the like, so that the height of the lead wires of the coverlay film 53 is increased. It is adjusted to the same height as the covering portion 531. However, instead of reducing the thickness of the lead wire 521a portion of the first fixed contact 521, that is, the thickness by etching or the like, the lead wire covering portion 531 of the coverlay film 53 that covers the lead wire 521a portion. The height of the lead wire covering portion 531 and the second fixed contact 522 may be set to the same height by reducing the height on the base film 51.

  In the first embodiment and the second embodiment, the second fixed contact 522 is set to the same height as the cover lay film 53 (lead wire covering portion 531), and the first fixed contact 521 and the second Although both the fixed contact 522 and the coverlay film 53 (lead wire covering portion 531) have the same height, they do not necessarily have to coincide with the same height. By making the height of at least one of the first fixed contact 521 and the second fixed contact 522 on the base film higher than the lamination thickness (lamination height) of the surrounding conductive pattern 52, the coverlay film 53 thereof. You may make it reduce the difference in height with (lead wire coating | coated part 531). As a result, it is possible to reduce the installation of the dome-shaped movable contact 31 at an inclination, to prevent the switching reliability and click feeling from being lowered, and to prevent the coverlay film 53 from being damaged. Also good.

  INDUSTRIAL APPLICABILITY The present invention can be used industrially as a portable device such as a cellular phone, an input module used for the portable device, and a flexible printed wiring board used for the input module.

It is a perspective view which shows the mobile telephone as a portable apparatus which concerns on the 1st Embodiment of this invention. It is a top view of the input module of a mobile telephone. It is sectional drawing which shows a part of input module shown in FIG. It is a top view which shows the fixed contact for switching provided in the flexible printed wiring board used for an input module. FIG. 6 is a cross-sectional view taken along the line AA of FIG. 4 and shows a state in which a dome-shaped movable contact is combined with a switching fixed contact of the flexible printed wiring board. FIG. 5 is a cross-sectional view taken along line BB in FIG. 4 and shows a state where a dome-shaped movable contact is combined with a switching fixed contact of the flexible printed wiring board. It is sectional drawing which shows the state which combined the dome shaped movable contact with the flexible printed wiring board used for the input module of the portable device which concerns on the 2nd Embodiment of this invention, and is sectional drawing equivalent to the AA cross section of FIG. is there. It is sectional drawing which shows the state which combined the dome shaped movable contact with the flexible printed wiring board used for the input module of the portable apparatus which concerns on 2nd Embodiment of this invention, and is sectional drawing equivalent to the BB cross section of FIG. . It is a top view of the flexible printed wiring board explaining a prior art. It is KK sectional drawing of FIG. It is LL sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 1a Input part 1b Display part 1c Hinge part 2 Input module 10 Input operation part 11 Input key 12 Input sheet 20 Light guide part 21 Light guide plate 22 Reflective pattern 23 Thickness convex part 30 Dome switch part 31 Dome-shaped movable contact 32 Dome Sheet 40 Light Source 50 Flexible Printed Wiring Board 51 Base Film 52 Conductive Pattern 53 Coverlay Film 521 First Fixed Contact 521a Lead Wire 522 Second Fixed Contact 522a Partially Open Area 531 Lead Wire Covering Section

Claims (6)

A conductive pattern and a coverlay film covering the conductive pattern are provided on a base film, and the conductive pattern includes a first fixed contact and a second fixed contact surrounding the first fixed contact as a fixed contact for switching. A fixed contact for switching configured such that switching between the first fixed contact and the second fixed contact by the dome-shaped movable contact is performed by pushing the dome-shaped movable contact combined with the dome-shaped movable contact. A flexible printed wiring board comprising:
The lead wire of the first fixed contact is configured to extend to an external region through a partially open region of the enclosure of the second fixed contact,
The cover lay film is configured to cover the lead wire passing through a partially open region of the enclosure of the second fixed contact while holding the first fixed contact and the second fixed contact in an exposed state without covering. And
The height of at least one of the first fixed contact and the second fixed contact on the base film is configured to be higher than the height of the surrounding conductive pattern covered with the coverlay film. Flexible printed wiring board with fixed contacts for use.   2. The height of the second fixed contact on the base film is configured to be the same as the height of the coverlay film around the second fixed contact on the base film. A flexible printed wiring board comprising the fixed contact for switching described in 1.   2. The switching according to claim 1, wherein the height of the coverlay film around the first fixed contact, the second fixed contact, and the second fixed contact on the base film is the same. Flexible printed wiring board with fixed contacts for use.   The height adjustment of the first fixed contact, the second fixed contact, and the coverlay film is performed by increasing or decreasing the thickness of the corresponding conductive pattern portion. A flexible printed wiring board comprising the fixed contact for switching according to any one of 3.   A flexible printed wiring board having the switching fixed contact according to any one of claims 1 to 4, a dome-shaped movable contact combined with the wiring board, and an input operation with respect to the dome-shaped movable contact An input module comprising at least an input operation unit for applying a pressing force.   A portable device comprising at least the input module according to claim 5.

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