Half Hole & Through Hole Pcb

Half Hole & through hole circuit board, no copper burr residue or warpage in
half hole, reduce connectors and save space, apply to Bluetooth module and
Signal receiver products. HUIHE CIRCUITS Half Hole & Through Hole PCB, apply to
Bluetooth module and Signal receiver products. Has passed ISO9001 / ISO13485
/IATF16949 / UL /RoHS / REACH certification.

Half Hole & Through Hole PCB List
2 Layer OSP Impedance Control Half Hole PCB

2 Layer ENIG Half Hole PCB

4 Layer ENIG Impedance Control Half Hole PCB Electric Circuit Board

2 layer ENIG impedance control half hole pcb

8 layer ENIG half hole custom PCB

4 layer ENIG impedance control half hole fr4 PCB

4 layer ENIG impedance control half hole PCB

4 layer LF-HASL half hole PCB

Production Process Of Metallized Half-Hole PCB
For the front inversion, to prevent the quality of the product and the need to
make corrections in the later process, the production process of this type of
board is processed according to the following process: a drilling (drilling,
gong groove-plate surface plating-external Optical imaging-pattern plating-co-
drying-half-hole processing-film stripping, etching, tin stripping-other
processes-shape

Main Points Of Metallized Half-Hole PCB Production
The specific metallized half-holes are processed in the following way: all
metallized half-hole PCB holes must be drilled in the pattern after plating,
and one hole at the intersection of the two ends of the half-hole should be
drilled before etching.
The engineering department formulates the MI process according to the process
The metal half-hole is the second-drilled half-hole drilled during the first
drilling (or gong), after the image is plated, and before the etching. It is
necessary to consider whether the copper will be exposed when the gong groove
is shaped, and move the drilled half-hole into the unit.
he right hole is drilled first, and then the board is turned over (or mirrored)
and the left hole is drilled to reduce the pulling of the copper of the inner
hole of the half hole by the drill, resulting in the lack of copper of the
hole.
The size of the drill nozzle for drilling the half hole depends on the spacing
of the contour lines.
Draw the solder mask film, use the gong space as a stop point and open the
window to increase 4mil treatment.

The Designer's Suggestion When Designing The Circuit
Change the distance from the edge line to the hole center. The general design
is to place the hole center on the edge line and move the control center down.
For example, the diameter of the hole is 1.4mm, the distance between the two
holes is 2.54mm, and the board edge The distance between the line is 0.33mm
from the center of the through hole, and the thickness of the plate is 0.6mm.
The angle between the tangent to the cut point of the wall and the track of the
milling cutter was 90 degrees before, but this time it is about 60 degrees.
Because the board edge line is at a certain distance from the center of the
through hole, the cutting angle of the milling cutter is changed, and the board
thickness is extremely small, so the copper in the hole is not easily pulled
out. The simultaneous improvement of small batch pcb design and production can
greatly improve the production yield of pcb board with holes.

In our circuit board factory, we have types of pcb board for sale, if you have
needs, please contact us.

Minimum Order: 1 sets

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