The price of gold has risen by nearly 250% over the past few years. So accurate costing is essential both for our customers and ourselves.
We have made some changes in the way we calculate chemical nickel-gold (Che Ni/Au) prices. Previously we had 2 options:
Che Ni/Au selective: the nickel/gold surface finish was applied only to the copper exposed by the soldermask.
Che Ni/Au overall: this covered 2 situations: cases where the customer required nickel-gold over the whole board but under the soldermask; and cases where there was no soldermask on one or both sides.
Now we offer a choice of 3 options:
Che Ni/Au selective
Che Ni/Au sel. – large area
Che Ni/Au before soldermask
Che Ni/Au selective and Che Ni/Au sel. – large area
For Che Ni/Au selective and Che Ni/Au sel. – large area the nickel/gold surface finish is applied only to the copper exposed by the soldermask. If the exposed copper covers less than 40% of the board surface choose Che Ni/Au selective; if it covers more, choose Che Ni/Au sel. – large area. The percentage of exposed (or “free”) copper is calculated in real time and shown in the DFM section of PCB Checker.
Both Che Ni/Au selective and Che Ni/Au sel. – large area are pooling options.
How to use the new options when specifying Che Ni/Au surface finish?
Select Che Ni/Au selective in the price calculator menu.
To get the final PCB price, upload your data to allow PCB Visualizer to calculate the free copper area.
Open PCB Visualizer in your Shopping basket.
For most PCBs the free copper will be less than 40% of the board area, so Che Ni/Au selective will be correct. When you open the Shopping basket, there will be a green tick in the PCB Visualizer column (assuming that there are no other issues).
If the free copper is more than 40% of the board area on the top or bottom layer (typically where there is no soldermask on top and/or bottom layers), there will be a red flag in the PCB Visualizer column. Click the item to open PCB Configurator/PCB Checker. A Remarks message will advise you to change to Che Ni/Au sel. – large area. The PCB price will rise slightly. Click the “PCB Checker” and “DFM information” tabs to see the exact values.
If you have selected Che Ni/Au sel. – large area and the free copper percentage is less than 40% of the board area, a message will advise you to switch to Che Ni/Au selective. TIP If you have selected Che Ni/Au sel. – large area when calculating the price and the free copper area is less than 40%, PCB Visualizer will show a green tick (as the job is producible). If you have selected Che Ni/Au sel. – large area in the pricing menu always click the item in the basket and check for the warning message.
The new price for boards with Che Ni/Au surface finish and no soldermask on top or bottom layers is significantly lower than the present Che Ni/Au overall price.
Che Ni/Au before soldermask
This is now a separate option. As it is rarely specified and requires a special process route, it cannot be pooled. It is now a non-poolable option. In case you have chosen it by mistake you will receive a warning message.
This blog is also available in following languages
Click on the different category headings to find out more. You can also change some of your preferences. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer.
Essential Website Cookies
These cookies are strictly necessary to provide you with services available through our website and to use some of its features.
We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.
Google Analytics Cookies
These cookies collect information that is used either in aggregate form to help us understand how our website is being used or how effective our marketing campaigns are, or to help us customize our website and application for you in order to enhance your experience.
If you do not want that we track your visit to our site you can disable tracking in your browser here:
Other external services
We also use different external services like Google Webfonts, Google Maps, and external Video providers. Since these providers may collect personal data like your IP address we allow you to block them here. Please be aware that this might heavily reduce the functionality and appearance of our site. Changes will take effect once you reload the page.
Google Webfont Settings:
Google Map Settings:
Google reCaptcha Settings:
Vimeo and Youtube video embeds:
The following cookies are also needed - You can choose if you want to allow them: