Patents Assigned to Mutual-TEK Industries Co., Ltd.
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Patent number: 9433098Abstract: A method of manufacturing a combined circuit board includes the following steps. First, through portions (TPs) arranged in a predetermined format are formed in a rigid substrate (RS) such that the RS is divided into a predetermined removed region (PRR1) and a predetermined reserved region (PRR2) according to the arrangement of the TPs. Next, a conductive bonding layer (CBL) and a flexible circuit board (FCB) are respectively laminated on two opposite sides of the RS and part of a dielectric bonding layer of the CBL fills the TPs. Next, the RS, the FCB and the CBL are bent according to the TPs such that the PRR2 is bent at the TPs relative to the PRR1. Finally, part of the RS located at the PRR1 and part of the CBL corresponding to the PRR1 are removed to form an indentation to expose part of the FCB.Type: GrantFiled: January 23, 2013Date of Patent: August 30, 2016Assignee: Mutual-Tek Industries Co., Ltd.Inventors: Shi Yu Chiou, Hsu-Tung Chen
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Patent number: 8581114Abstract: A packaged structure having a magnetic component and a method of manufacturing the same are provided. The packaged structure includes an insulating substrate having a ring-typed recess, an island portion and a surrounding portion defined by the ring-typed recess, wherein the ring-typed recess is laterally between the island portion and the surrounding portion.Type: GrantFiled: February 3, 2010Date of Patent: November 12, 2013Assignees: Planarmag, Inc., Mutual-Tek Industries Co., Ltd.Inventors: William Lee Harrison, Jung-Chien Chang
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Patent number: 8516693Abstract: The present invention discloses a printed circuit board. The printed circuit board is made by the method of providing a substrate; forming a first circuit on the substrate; depositing a thin film on the substrate; building an electronic component on the substrate by the thin film and allowing the electronic component to electrically connect the first circuit; forming a blanket dielectric layer enclosing the electronic component; and removing the substrate.Type: GrantFiled: April 9, 2009Date of Patent: August 27, 2013Assignee: Mutual-Tek Industries Co., Ltd.Inventor: Jung-Chien Chang
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Patent number: 7892412Abstract: A manufacturing process of an embedded type flexible or rigid printed circuit board includes multiple steps. First, a layer of dry film is applied to a layer of copper foil. Then a circuit pattern is formed on the copper foil through photolithography processes. An etching stop layer is electroplated on the copper foil according to the circuit pattern. The etching stop layer is then electroplated with copper. The copper foil is softened by a high temperature process after removing the dry film. Then the layer of the copper foil is etched after coating with an organic layer and the organic layer is solidified.Type: GrantFiled: September 6, 2007Date of Patent: February 22, 2011Assignee: Mutual-Tek Industries Co., Ltd.Inventor: Roger Chang
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Patent number: 7676918Abstract: A method for forming a molded circuit board is provided. The method includes the steps of forming a circuit having a first section and a second section on a conductive substrate, the first section and the second section being coplanar; then deforming the conductive substrate by mold-pressing, so that the first section and the second section become non-coplanar; providing a plastic material to cover the circuit and the conductive substrate; curing the plastic material by injection-molding; and removing the conductive substrate to expose the circuit. The molded circuit board made by this method is also provided.Type: GrantFiled: July 12, 2007Date of Patent: March 16, 2010Assignee: Mutual-Tek Industries Co., LtdInventor: Jung-Chien Chang
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Patent number: 7603771Abstract: A method of providing at least two multilayer circuit boards, combining the at least two multilayer circuit boards to form a combined multilayer circuit board, and forming multiple outer conductive vias, circuits and contacts on the combined multilayer circuit board. Each multilayer circuit board is fabricated by the steps of preparing a single-layer printed circuit board having multiple chip sections, attaching at least one chip to the corresponding chip section, attaching a frame having multiple enclosures to the single-layer printed circuit board, attaching a semi-fluid glue sheet to the frame, vacuum pressing a conductive layer on the semi-fluid glue sheet and forming multiple conductive inner vias through the multilayer circuit board. The at least two multilayer circuit boards are combined by steps of reversing one of the multilayer circuit boards and vacuum pressing other multilayer circuit boards on the reversed multilayer circuit board.Type: GrantFiled: August 29, 2006Date of Patent: October 20, 2009Assignee: Mutual-Tek Industries Co., Ltd.Inventor: Roger Chang
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Patent number: 7505282Abstract: A multilayer circuit board has a bottom and an upper multilayer circuit boards, a glue layer, multiple outer contact vias and two insulating lacquer layers. The bottom and the upper multilayer circuit boards respectively have multiple conductive wires, an insulating layer, a frame, multiple chips, a press laminate, a patterned conductive layer and at least one inner contact via. The glue layer sticks the bottom and the upper multilayer circuit boards together. The multiple contact vias are formed through the bottom and the upper multilayer circuit boards to electronically interconnect the conductive wires and the patterned conductive layers in the bottom and the upper multilayer circuit boards. The insulating lacquer layers are respectively coated under and on portions of the patterned conductive layers in the bottom and the upper multilayer circuit boards to protect the patterned conductive layers, wherein the un-coated patterned conductive layers become multiple contacts.Type: GrantFiled: October 31, 2006Date of Patent: March 17, 2009Assignee: Mutual-TEK Industries Co., Ltd.Inventor: Roger Chang