Dioxins are a collective term for chlorinated dioxins and furans with a similar chemical structure. In total, the group of dioxins consists of 75 polychlorinated dibenzo-para-dioxins (PCDD) and 135 polychlorinated dibenzofurans (PCDF) (also PCDD/PCDF), and they are alwa...
we cannot stop producing PCBs at all. Or else the industry would just collapse on itself. However, there are some preventative measures that help us control the influence to a large extent. Another good solution is effective housekeeping. There are some recommendations...
So, this is a good alternative of FR4. 5) Polyimide: This material is used in flexible PCB. This material is made from kepton, rogers, dupont. This material has good electrical properties, felicity, wide temperature range and high chemical resistance. Working temperature of this material is ...
A PCB is a board used to mechanically support and electrically connect electronic components using conductive pathways or traces etched from copper sheets laminated onto a non-conductive substrate. PCBs are the foundation of almost every electronic device, allowing different components like integrated ...
Don’t think that just because PCBs have been banned that cleanup processes are complete and little work needs to be done. The fact is that there are still some rivers that are still contaminated with PCBs and to this day cleanup processes are underway. I used to live in New Jersey when...
1. What is IMC? IMC stands for InterMetallic Compound in the electronic manufacturing industry. IMC (Intermetallic Compound) is a chemical molecular. It’s not an alloy (note: some classify IMC as a type of alloy), nor is it pure metal. Since IMC is a molecular composition resulting from...
5. PCB designers consider the RF PCB to be any high frequency PCB operating above 100MHz. Within the RF level, microwave PCBs are available above 2GHz. 5.0 Conclusion Although a PCB with a frequency of more than 1GHz is basically defined as a high frequency PCB, there will be many great...
HDI PCBs will require interconnects that typically hit the lower limit of the via size that can be placed in a PCB with mechanical drilling. Once via holes get smaller than 6 mils, an alternative via formation process is needed to place microvias between layers. As filled plated microvias are...
Corrosion: another factor to consider is how vulnerable PCB material can be to corrosion before choosing an OSP surface finish. Copper PCBs often corrode upon exposure to air. So, applying the OSP surface finish is important before the atmospheric elements set in on the PCB surface. ...
is believed that low-priced halogen-free circuit board structures will be put on the market soon. Therefore, all PCB manufacturers should put the trial and use of halogen-free PCB on the agenda, formulate detailed plans, and gradually expand the number of halogen-free PCBs in the factory, ...