{"id":179,"date":"2011-04-15T17:30:46","date_gmt":"2011-04-15T09:30:46","guid":{"rendered":"http:\/\/www.flexiblecircuitpcb.com\/blog\/?p=179"},"modified":"2011-04-15T17:30:46","modified_gmt":"2011-04-15T09:30:46","slug":"how-to-distinguish-films","status":"publish","type":"post","link":"https:\/\/www.flexiblecircuitpcb.com\/blog\/how-to-distinguish-films\/","title":{"rendered":"How to distinguish films?"},"content":{"rendered":"

In general, the master film is also known as the black film, mainly used to copy the work film (yellow film), but not necessarily only a yellow film for work, are also black films do work. It mainly to do high-precision HDI board or to a one-time savings in the production of small quantities of circuit boards<\/a> and flexibe pcb<\/a>. Yellow films mainly used in ordinary printed circuit boards<\/a> and mass production.<\/p>\n

Positive film for the use of graphical electroplating, developing is the circuits, leaving the role of anti-corrosion plating, mainly tin and pb plating. Negatives film used for direct etching, leaving the role of circuits. When distinguish the films<\/strong>, the smooth side is black film, in contrast, is yellow film. And generally use scratching pen to scratch the film can be seen smooth side.<\/p>\n

Please Note: There are both glossy and matte side of yellow film, and the second is easy to find easy-to-oil surface indentation when using. On film circuits (copper), the transmitting is negative film, opaque positive film.<\/p>\n

CMD Circuits is specializing in manufacturing the printed circuit boards<\/a>, flexible pcb<\/a> and aluminum pcb<\/a>, please contact us<\/a> if any inquiries.<\/p>\n","protected":false},"excerpt":{"rendered":"

When distinguish the films, the smooth side is black film, in contrast, is yellow film. And generally use scratching pen to scratch the film can be seen smooth side.<\/p>\n

Read more »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[86,87,85],"class_list":["post-179","post","type-post","status-publish","format-standard","hentry","category-pcb","tag-distinguish","tag-films","tag-how"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/posts\/179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/comments?post=179"}],"version-history":[{"count":1,"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/posts\/179\/revisions"}],"predecessor-version":[{"id":180,"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/posts\/179\/revisions\/180"}],"wp:attachment":[{"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/media?parent=179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/categories?post=179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.flexiblecircuitpcb.com\/blog\/wp-json\/wp\/v2\/tags?post=179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}