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G0HZU_JMR · 6th Mar 2021, 3:29 pm

The Taconic CER-10 material is quite strange if you look at it close up with a microscope. The only samples I have here are milled PCBs but there is a definite and repeatable pattern in the material surface. It isn't a hard material at all and can be cut into quite easily with a scalpel. It's a very pale brown colour. At work it gets purchased as metal backed. In other words, the ground side of the PCB material is bonded to a thick slab of aluminium several mm thick. The ground vias go through the PCB material and through the aluminium because it is all bonded together as one PCB.

It generally isn't nice to look at or to work with but the RF performance is very good.

6th Mar 2021, 3:29 pm	#69
G0HZU_JMR Dekatron Join Date: Sep 2010 Location: Cheltenham, Gloucestershire, UK. Posts: 3,077	Re: Spectrum Analyser TR4172 The Taconic CER-10 material is quite strange if you look at it close up with a microscope. The only samples I have here are milled PCBs but there is a definite and repeatable pattern in the material surface. It isn't a hard material at all and can be cut into quite easily with a scalpel. It's a very pale brown colour. At work it gets purchased as metal backed. In other words, the ground side of the PCB material is bonded to a thick slab of aluminium several mm thick. The ground vias go through the PCB material and through the aluminium because it is all bonded together as one PCB. It generally isn't nice to look at or to work with but the RF performance is very good. __________________ Regards, Jeremy G0HZU