Untilization and Advantage of Standard PCB Panel Size

The PCB Panel advantage A composite of published circuit card, i.e. Printed circuit boards that are not isolated are firmly repaired and also the setting up of the printed motherboard also comes from it, is typically taken as a published motherboard advantage. The charm of the design styles have to be the style of the published motherboard usage, in order to be able to utilize the published circuit card at optimum expenses and stocks and also arrangements. The impact of the PCB advantages on the production expenses of the PCB and the expense of assembly. The manufacturing expenses of published circuit boards become clear through the PCB panel examination control, which is the right law of the manufacturing panel with the control used by the printed circuit boards.

In the created instance in Figure 1, the lots on panel A (6-fold usage) is approx. 50% and also the lots on panel B (4-fold use) is approx. 70%. With suitable individual printed circuit boards and also by skillfully dimensioning the panel and also preparing the panels appropriately, panel utilization of up to 85% can be achieved.

Number 1: PCB Panel use pcb panel usage

Figure 2 reveals the family member expense payments in the production of printed motherboard for a conventional printed motherboard (100 * 160mm, 8 openings per cm2, 127µm track width/distance, surface area: HAL) depending upon the variety of layers. Essentially, only the costs for boring, cutting (racking up or milling), the electrical examination, packaging as well as for some material elements are straight depending on the number of printed circuit boards that can be suited on a panel. The continuing to be expense elements are independent of the number of printed motherboard per panel.

Figure 2: Expense elements in the production of printed circuit card pcb parts

Normally speaking, it can be stated that approx. 70% to 80% of the PCB production costs are to be regarded as dealt with expenses, i.e. they are independent of the number of PCBs per panel. For the arrangements displayed in Number 1, this implies that the 8 circuit card (Panel B) can be made and also bought practically at the overall price of 6 circuit card (Panel A). The ideal advantage dimension in terms of producing prices is certainly dependent on the manufacturer. However, thinking about the commercially readily available panel cuts of 610 * 530mm or 1070 * 1225mm (typical sheet format) and the mounting margins and spacing needed for the manufacturing process, the PCB panel application and thus the price development in the PCB manufacturing for numerous PCB suppliers is an optimum advantage size of approx. 245 * 285mm.

The setting up process has cost components that are straight related to the number of parts per benefit as well as thus to the variety of printed motherboard per benefit, such as: Intake of solder, direct SMD or THD setting up prices per element as well as AOI cost per part. The expenses for packaging the circuit boards, an electric function test and for dividing the circuit card from the panel are symmetrical to the number of circuit boards in the panel. Other price elements are nearly independent of the number of printed motherboard in operation or the variety of parts on the published circuit card:

Throughput time of the benefit in the soldering system, Time for paste printing, The placement maker is idle throughout retraction/extension or adjustment of use. Assembly prices for PCBs advantage

Figure 3: MOKO Printed Circuit Board Assembly expenses pcb assembly

This decreases the processing costs in the PCB setting up for a benefit with an enhancing number of PCBs in the benefit, as displayed in concept in Figure 3. The following briefly analyzes whether taking full advantage of the number of published circuit card in terms of use is constantly highly sensible.

PCB Advantage Capacities The optimum advantage size or PCB size differs depending upon the PCB maker and also technological tools. Based on the standard PCB panel size reduced 610 * 530mm, which is commonly processed, there are optimal dimensions of approx. 570 * 490mm for many producers. In electronic devices production at CAD-UL, the optimum dimensions are defined by the equipments made use of, supplied that it is to be carried out totally mechanically:

Paste printer 600 * 600mm SMD choose and also put machine 400 * 550mm Vapor phase soldering system 550 * 600mm