Peking University

Zhuhai Founder Pcb Development Co., Ltd.

Chongqing Founder Hi-tech Electronic Inc.

Zhuhai Founder Tech Hi-density Electronics Co., Ltd.

Xinhong Su

Chen Chen

George Dudnikov, Jr

Shuhan Shi

Embodiments of the present application relate to the technical field of a printed circuit plate, in particular, to a printed circuit plate and a method manufacturing same so as to resolve a problem of an incomplete elimination of a short-line effect. The method for manufacturing a printed circuit board in the embodiments of the present application comprises a step of drilling target prepregs at positions corresponding to at least one preset hole therein so as to form through holes perforating through the target prepregs, wherein the formed through holes have an aperture greater than that of the preset hole, and the preset hole does not need to transmit electrical signal between layers of the PCB. The method further comprises: filling the formed through holes with a plating resist ink to prevent the through holes from being plated with a conductive material; laminating the target prepregs and core boards so as to form a multi-layer printed circuit board PCB, wherein some or all of the prepregs are the target prepregs; drilling the multi-layer PCB to perforate the preset holes in the target prepregs; and plating inner walls of holes formed by drilling the multi-layer PCB.

Printed circuit boards and methods for manufacturing same

A method for detecting a registration offset is disclosed. The method includes transferring a first pattern to a metal layer on a first side of a printed circuit board (PCB) substrate. The first pattern has a reference scale. The method further includes transferring a second pattern to a metal layer on a second side opposite to the first side of the PCB substrate. The second pattern has a measurement scale. The second pattern is transferred by aligning an origin of the measurement scale with an origin of the reference scale in an apparatus such that at least a portion of the reference scale is overlapped with the measurement scale. The method includes etching the metal layers of the PCB substrate and measuring an offset in the patterns on the PCB substrate by using the reference scale and the measurement scale.

Methods and apparatuses for detecting registration offsets

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Zhuhai, China

Xinhong Su