{"version":"1.0","provider_name":"Philifast - Fast PCB &amp; PCBA Manufacturer","provider_url":"https:\/\/fljpcb.com\/ms","author_name":"Leo Xiong","author_url":"https:\/\/fljpcb.com\/ms\/author\/2475017442jygmail-com\/","title":"PCB Copper Surface Oxidation in Production","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"RI92Z1PKLf\"><a href=\"https:\/\/fljpcb.com\/ms\/pcb-copper-surface-oxidation-in-production\/\">PCB Copper Surface Oxidation in Production<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/fljpcb.com\/ms\/pcb-copper-surface-oxidation-in-production\/embed\/#?secret=RI92Z1PKLf\" width=\"600\" height=\"338\" title=\"&#8220;PCB Copper Surface Oxidation in Production&#8221; &#8212; Philifast - Fast PCB &amp; PCBA Manufacturer\" data-secret=\"RI92Z1PKLf\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>","thumbnail_url":"https:\/\/fljpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Copper-Surface-Oxidation-in-Production.webp","thumbnail_width":800,"thumbnail_height":534,"description":"Introduction In double-sided and multilayer PCB production, copper surface oxidation is a serious problem. After copper deposition and whole-board plating, the copper on the board surface and inside holes, especially small holes, can oxidize during the time before pattern transfer. This oxidation harms the quality of pattern transfer and subsequent plating. Inner layers also show [&hellip;]"}