H05K3/068

Methods of etching conductive features, and related devices and systems
11425822 · 2022-08-23 · ·

A method of making a device patterned with one or more electrically conductive features includes depositing a conductive material layer over an electrically insulating surface of a substrate, depositing an anti-corrosive material layer over the conductive material layer, and depositing an etch-resist material layer over the anti-corrosive material layer. The etch-resist material layer may be deposited over the anti-corrosive material layer, and the anti-corrosive material layer forming a bi-component etch mask in a pattern resulting in covered portions of the conductive material layer and exposed portions of the conductive material layer, the covered portions being positioned at locations corresponding to one or more conductive features of the device. A wet-etch process is performed to remove the exposed portions of the conductive material layer from the electrically insulating substrate, and the bi-component etch mask is removed to expose the remaining conductive material. Systems and devices relate to devices with patterned features.

ETCHING DEVICE AND ETCHING METHOD USING THE SAME
20220223436 · 2022-07-14 ·

An etching device includes a nozzle unit including at least one nozzle including an etching solution injection hole, an etching solution collection hole, and a sealing part. The etching solution injection hole is configured to provide an etching solution to an etching object, the etching solution collection hole is configured to collect the etching solution, and the sealing part surrounds the etching solution injection hole and the etching solution collection hole to prevent the etching solution from leakage.

CONTINUOUS ETCHING SYSTEM
20220117092 · 2022-04-14 ·

The present invention relates to continuous etching system for copper etching in manufacturing of Printed Circuit Boards (PCB). The present invention more particularly relates to continuous etching system provides zero undercut, zero residue copper and non-corrosive surfaces on PCB with environmentally safe and efficient manner. The present invention provides continuous copper etching system in manufacturing of PCBs without pump or any machine force for flowing of etchant.

A Method and Apparatus for Preparing a PCB Product Having Highly Dense Conductors
20220104360 · 2022-03-31 ·

A method for preparing a PCB product having highly dense conductors, the method including providing a PCB substrate including a conductive layer, employing an inkjet printer to selectively print unexposed photosensitive patterns on the PCB substrate, the unexposed photosensitive patterns having a thickness of less than 5 pm, exposing the photosensitive patterns to radiation thereby to define exposed patterns, the exposed patterns having a pitch less than 20 pm and wet etching the conductive layer in accordance with a pattern defined by the exposed patterns thereby to define the highly dense conductors having a pitch of less than 30 pm.

Anisotropic Etching Using Photosensitive Compound
20210315104 · 2021-10-07 ·

A method of etching an electrically conductive layer structure during manufacturing a component carrier is provided. The method includes subjecting the electrically conductive layer structure to an etching composition having an etchant and a photosensitive compound to thereby form a recess in the electrically conductive layer structure; while, at least for a part of time, irradiating and/or heating the recess. In addition, an apparatus for etching an electrically conductive layer structure during manufacturing a component carrier, an etched electrically conductive layer structure and a component carrier are provided.

METHODS OF ETCHING CONDUCTIVE FEATURES, AND RELATED DEVICES AND SYSTEMS
20210227696 · 2021-07-22 · ·

A method of making a device patterned with one or more electrically conductive features includes depositing a conductive material layer over an electrically insulating surface of a substrate, depositing an anti-corrosive material layer over the conductive material layer, and depositing an etch-resist material layer over the anti-corrosive material layer. The etch-resist material layer may be deposited over the anti-corrosive material layer, and the anti-corrosive material layer forming a bi-component etch mask in a pattern resulting in covered portions of the conductive material layer and exposed portions of the conductive material layer, the covered portions being positioned at locations corresponding to one or more conductive features of the device. A wet-etch process is performed to remove the exposed portions of the conductive material layer from the electrically insulating substrate, and the bi-component etch mask is removed to expose the remaining conductive material. Systems and devices relate to devices with patterned features.

Methods of etching conductive features, and related devices and systems
11006528 · 2021-05-11 · ·

A method of making a device patterned with one or more electrically conductive features includes depositing a conductive material layer over an electrically insulating surface of a substrate, depositing an anti-corrosive material layer over the conductive material layer, and depositing an etch-resist material layer over the anti-corrosive material layer. The etch-resist material layer may be deposited over the anti-corrosive material layer, and the anti-corrosive material layer forming a bi-component etch mask in a pattern resulting in covered portions of the conductive material layer and exposed portions of the conductive material layer, the covered portions being positioned at locations corresponding to one or more conductive features of the device. A wet-etch process is performed to remove the exposed portions of the conductive material layer from the electrically insulating substrate, and the bi-component etch mask is removed to expose the remaining conductive material. Systems and devices relate to devices with patterned features.

APPARATUS AND METHOD FOR MANUFACTURING MULTILAYER CIRCUIT BOARDS
20210105900 · 2021-04-08 ·

An apparatus for manufacturing printing circuit boards is provided. The apparatus includes a microcontroller, power supply, two-dimensional stage, laser, and one or more chemical treatment tanks. The apparatus may include a mutlifunctional print module, or multiple independent modules capable of being exchanged, to perform various different processes on a substrate on the same build plate, and may include mechanical means for transporting the substrate during different stages between the build plate, chemical processing chamber(s), and a pressing chamber.

SEMI-AUTOMATIC CORROSION BOX OF COPPER CLAD LAMINATE
20200359505 · 2020-11-12 ·

A semi-automatic corrosion box of a copper clad laminate is disclosed. The corrosion device comprises a box body which has no cover; a baffle plate which divides the corrosion box into an upper part and a lower part, wherein a copper clad laminate circuit board is placed on the baffle plate, and a temperature detection module, water pumps and a heating rod are placed on a lower part; and a thermal imaging camera which is placed on a pressing plate through a bracket. Modules in corrosive liquid are connected with an external single chip microcomputer control module through corrosion-resistant wires. The working mode of the present invention is that time and temperature are set with a key matrix at first, and the control module can automatically stop working and enter a low power consumption mode.

METHOD, DEVICE, AND SYSTEM FOR MANUFACTURING PRINTED CIRCUIT BOARDS
20200221579 · 2020-07-09 ·

A method of manufacturing printed circuit boards includes some or all of: chemically or electrically applying metallic layers to a substrate; incorporating bores into the substrate; through-contacting the bores incorporated into the substrate; applying a layer from a photoresist to an electrically conducting layer in a masking step; exposing the photoresist while using an exposure mask in an exposing step; removing exposed or unexposed regions of the layer from the photoresist while in regions laying bare the electrically conducting layer in a developing step; removing the laid-bare regions of the electrically conducting layer in an etching step; cleaning the substrate in a rinsing step; and drying the substrate, wherein the substrate for carrying out the developing step and/or the etching step is set in rotation and a developer solution and/or an etching liquid is applied to the rotating substrate by at least one nozzle.