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US 2002/0054470 A1Published application
Packaged solid electrolytic capacitor and method of making the same
AssigneeRohm Co., Ltd.
InventorChojiro Kuriyama
Life of this patent
Estimating the term…
Abstract
A solid electrolytic capacitor is provided which includes a capacitor element having an anode and a cathode, a sheet member for mounting the capacitor element, and a protection package formed on the sheet member to enclose the capacitor element. The sheet member is provided with an anode terminal and a cathode terminal which are connected to the anode and the cathode, respectively.
Claims27
A solid electrolytic capacitor comprising:
- a capacitor element having an anode and a cathode;
- a base sheet member having an obverse surface for mounting the capacitor element and a reverse surface opposite to the obverse surface;
- a protection package formed on the obverse surface of the sheet member to enclose the capacitor element, the package having a first side surface adjacent to the anode of the capacitor element and a second side surface opposite to the first side surface;
- a conductive outer anode layer electrically connected to the anode of the capacitor element;
- and
- a conductive outer cathode layer electrically connected to the cathode of the capacitor element;
- wherein the outer anode layer is formed on at least either one of the package and the sheet member, the outer cathode layer being formed on at least either one of the package and the sheet member.
4 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer;
- placing a capacitor element having an anode and a cathode onto the obverse surface of the sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- forming a resin plate on the obverse surface of the sheet member to enclose the capacitor element;
- cutting the resin plate to generate a first cut surface and a second cut surface, the anode of the capacitor element being exposed at the first cut surface, the cathode connection layer being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the resin plate to provide a product capacitor.
5 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer, the reverse surface being provided with at least one cathode electrode layer, the sheet member being formed with a through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- placing a capacitor element having an anode and a cathode onto the obverse surface of the sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- forming a resin plate on the obverse surface of the sheet member to enclose the capacitor element;
- cutting the resin plate to generate a first cut surface and a second cut surface, the anode of the capacitor element being exposed at the first cut surface;
- forming an anode terminal layer on the first cut surface;
- and
- cutting the resin plate to provide a product capacitor.
4 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer;
- preparing at least one capacitor element having an anode and a cathode;
- attaching a metal piece to the anode of the capacitor element;
- placing the capacitor element onto the obverse surface of the sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- forming a resin plate on the obverse surface of the sheet member to enclose the capacitor element;
- cutting the resin plate to generate a first cut surface and a second cut surface, the metal piece of the capacitor element being exposed at the first cut surface, the cathode connection layer being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the resin plate to provide a product capacitor.
7 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer, the reverse surface being provided with at least one cathode electrode layer, the sheet member being formed with an through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- preparing a capacitor element having an anode and a cathode;
- attaching a metal piece to the anode of the capacitor element;
- placing the capacitor element onto the obverse surface of the sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- forming a resin plate on the obverse surface of the sheet member to enclose the capacitor element;
- cutting the resin plate to generate a first cut surface and a second cut surface, the metal piece of the capacitor element being exposed at the first cut surface;
- forming an anode terminal layer on the first cut surface;
- and
- cutting the resin plate to provide a product capacitor.
6 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a capacitor element having an anode, a cathode and a cathode bump formed on the cathode;
- placing the capacitor element onto a sheet member;
- forming a resin plate on the sheet member to enclose the capacitor element;
- cutting the resin plate to generate a first cut surface and a second cut surface, the anode of the capacitor element being exposed at the first cut surface, the cathode bump being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the resin plate to provide a product capacitor.
5 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a capacitor element provided with a cathode, a cathode bump formed on the cathode, an anode, and a metal piece attached to the anode;
- placing the capacitor element onto a sheet member;
- forming a resin plate on the sheet member to enclose the capacitor element;
- cutting the resin plate to generate a first cut surface and a second cut surface, the metal piece of the capacitor element being exposed at the first cut surface, the cathode bump being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the resin plate to provide a product capacitor.
5 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a lower sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer;
- placing a capacitor element having an anode and a cathode onto the obverse surface of the lower sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- cutting the plate assembly to generate a first cut surface and a second cut surface, the anode of the capacitor element being exposed at the first cut surface, the cathode connection layer being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the plate assembly to provide a product capacitor.
7 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a lower sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer, the reverse surface being provided with at least one cathode electrode layer, the lower sheet member being formed with a through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- placing a capacitor element having an anode and a cathode onto the obverse surface of the sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- cutting the plate assembly to generate a first cut surface and a second cut surface, the anode of the capacitor element being exposed at the first cut surface;
- forming an anode terminal layer on the first cut surface;
- and
- cutting the plate assembly to provide a product capacitor.
6 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a lower sheet member having an obverse surface and a reverse surface, the obverse surface being provided with at least one cathode connection layer;
- preparing a capacitor element having a cathode, an anode, and a metal piece attached to the anode;
- placing the capacitor element onto the obverse surface of the lower sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- cutting the plate assembly to generate a first cut surface and a second cut surface, the metal piece of the capacitor element being exposed at the first cut surface, the cathode connection layer being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the plate assembly to provide a product capacitor.
8 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a capacitor element having an anode, a cathode and a cathode bump formed on the cathode;
- placing the capacitor element onto a lower sheet member;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- cutting the plate assembly to generate a first cut surface and a second cut surface, the anode of the capacitor element being exposed at the first cut surface, the cathode bump being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the plate assembly to provide a product capacitor.
7 more elements
A method of making a solid electrolytic capacitor element comprising the steps of:
- preparing a capacitor element provided with a cathode, a cathode bump formed on the cathode, an anode, and a metal piece attached to the anode;
- placing the capacitor element onto a lower sheet member;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- cutting the plate assembly to generate a first cut surface and a second cut surface, the metal piece of the capacitor element being exposed at the first cut surface, the cathode bump being exposed at the second cut surface;
- forming an anode terminal layer on the first cut surface;
- forming a cathode terminal layer on the second cut surface;
- and
- cutting the plate assembly to provide a product capacitor.
7 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a sheet member having an obverse surface and a reverse surface, the obverse surface being formed with at lease one pair of an anode connection layer and a cathode connection layer, the reverse surface being formed with at least one pair of an anode electrode layer and a cathode electrode layer, the sheet member being formed with a first through-hole for electrically connecting the anode connection layer to the anode electrode layer and with a second through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- placing a capacitor element having an anode and a cathode onto the obverse surface of the sheet member so that the cathode of the capacitor element comes into contact with the cathode connection layer;
- forming a resin plate on the obverse surface of the sheet member to enclose the capacitor element;
- and
- cutting the resin plate to provide a product capacitor.
2 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a sheet member having an obverse surface and a reverse surface, the obverse surface being formed with at lease one pair of an anode connection layer and a cathode connection layer, the reverse surface being formed with at least one pair of an anode electrode layer and a cathode electrode layer, the sheet member being formed with a first through-hole for electrically connecting the anode connection layer to the anode electrode layer and with a second through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- preparing a capacitor element having an anode, a cathode and a metal piece attached to the anode;
- placing the capacitor element onto the sheet member so that the metal piece comes into contact with the anode connection layer and that the cathode comes into contact with the cathode connection layer;
- forming a resin plate on the sheet member to enclose the capacitor element;
- and
- cutting the resin plate to provide a product capacitor.
3 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a lower sheet member having an obverse surface and a reverse surface, the obverse surface being formed with at lease one pair of an anode connection layer and a cathode connection layer, the reverse surface being formed with at least one pair of an anode electrode layer and a cathode electrode layer, the lower sheet member being formed with a first through-hole for electrically connecting the anode connection layer to the anode electrode layer and with a second through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- placing a capacitor element having an anode and a cathode onto the lower sheet member so that the anode comes into contact with the anode connection layer and that the cathode comes into contact with the cathode connection layer;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- and
- cutting the plate assembly to provide a product capacitor.
4 more elements
A method of making a solid electrolytic capacitor comprising the steps of:
- preparing a lower sheet member having an obverse surface and a reverse surface, the obverse surface being formed with at lease one pair of an anode connection layer and a cathode connection layer, the reverse surface being formed with at least one pair of an anode electrode layer and a cathode electrode layer, the lower sheet member being formed with a first through-hole for electrically connecting the anode connection layer to the anode electrode layer and with a second through-hole for electrically connecting the cathode connection layer to the cathode electrode layer;
- preparing a capacitor element having an anode, a cathode and a metal piece attached to the anode;
- placing the capacitor element onto the lower sheet member so that the metal piece comes into contact with the anode connection layer and that the cathode comes into contact with the cathode connection layer;
- stacking an upper sheet member on the capacitor element;
- supplying a resin material into a space between the lower and the upper sheet members to enclose the capacitor element;
- hardening the supplied resin material to form a resin plate attached to the lower and the upper sheet members, the resin plate and the lower and the upper sheet members constituting a plate assembly;
- and
- cutting the plate assembly to provide a product capacitor.
5 more elements
Dependencies are inferred from the claim text.