{"id":754,"date":"2017-08-22T23:29:27","date_gmt":"2017-08-22T15:29:27","guid":{"rendered":"http:\/\/www.jxpcba.com\/?p=754"},"modified":"2024-03-29T11:39:00","modified_gmt":"2024-03-29T03:39:00","slug":"reasons-and-steps-for-pcb-cleaning","status":"publish","type":"post","link":"http:\/\/www.jxpcba.com\/?p=754","title":{"rendered":"Reasons and steps for PCB cleaning"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"754\" class=\"elementor elementor-754\">\r\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3b4a5e63 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"3b4a5e63\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-42ba0765\" data-id=\"42ba0765\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3719b54a elementor--h-position-center elementor--v-position-middle elementor-arrows-position-inside elementor-pagination-position-inside elementor-invisible elementor-widget elementor-widget-slides\" data-id=\"3719b54a\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;,&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;,&quot;transition_speed&quot;:500}\" data-widget_type=\"slides.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor-pro - v3.11.4 - 07-03-2023 *\/\r\n.elementor-slides .swiper-slide-bg{background-size:cover;background-position:50%;background-repeat:no-repeat;min-width:100%;min-height:100%}.elementor-slides .swiper-slide-inner{background-repeat:no-repeat;background-position:50%;position:absolute;top:0;left:0;bottom:0;right:0;padding:50px;margin:auto}.elementor-slides .swiper-slide-inner,.elementor-slides .swiper-slide-inner:hover{color:#fff;display:flex}.elementor-slides .swiper-slide-inner .elementor-background-overlay{position:absolute;z-index:0;top:0;bottom:0;left:0;right:0}.elementor-slides .swiper-slide-inner .elementor-slide-content{position:relative;z-index:1;width:100%}.elementor-slides .swiper-slide-inner .elementor-slide-heading{font-size:35px;font-weight:700;line-height:1}.elementor-slides .swiper-slide-inner .elementor-slide-description{font-size:17px;line-height:1.4}.elementor-slides .swiper-slide-inner .elementor-slide-description:not(:last-child),.elementor-slides .swiper-slide-inner .elementor-slide-heading:not(:last-child){margin-bottom:30px}.elementor-slides .swiper-slide-inner .elementor-slide-button{border:2px solid #fff;color:#fff;background:transparent;display:inline-block}.elementor-slides .swiper-slide-inner .elementor-slide-button,.elementor-slides .swiper-slide-inner .elementor-slide-button:hover{background:transparent;color:inherit;text-decoration:none}.elementor--v-position-top .swiper-slide-inner{align-items:flex-start}.elementor--v-position-bottom .swiper-slide-inner{align-items:flex-end}.elementor--v-position-middle .swiper-slide-inner{align-items:center}.elementor--h-position-left .swiper-slide-inner{justify-content:flex-start}.elementor--h-position-right .swiper-slide-inner{justify-content:flex-end}.elementor--h-position-center .swiper-slide-inner{justify-content:center}body.rtl .elementor-widget-slides .elementor-swiper-button-next{left:10px;right:auto}body.rtl .elementor-widget-slides .elementor-swiper-button-prev{right:10px;left:auto}.elementor-slides-wrapper div:not(.swiper-slide)>.swiper-slide-inner{display:none}@media (max-width:767px){.elementor-slides .swiper-slide-inner{padding:30px}.elementor-slides .swiper-slide-inner .elementor-slide-heading{font-size:23px;line-height:1;margin-bottom:15px}.elementor-slides .swiper-slide-inner .elementor-slide-description{font-size:13px;line-height:1.4;margin-bottom:15px}}<\/style>\t\t<div class=\"elementor-swiper\">\r\n\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" dir=\"ltr\" data-animation=\"fadeInUp\">\r\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\r\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-3749053 swiper-slide\"><div class=\"swiper-slide-bg\"><\/div><div class=\"elementor-background-overlay\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div><div class=\"elementor-repeater-item-09da276 swiper-slide\"><div class=\"swiper-slide-bg elementor-ken-burns elementor-ken-burns--in\"><\/div><div class=\"elementor-background-overlay\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><\/div><\/div><\/div>\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\">\r\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-left\"><\/i>\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Previous<\/span>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\">\r\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"eicon-chevron-right\"><\/i>\t\t\t\t\t\t\t<span class=\"elementor-screen-only\">Next<\/span>\r\n\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1e6b13a2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1e6b13a2\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3e19bb94\" data-id=\"3e19bb94\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ad86684 elementor-widget elementor-widget-wp-widget-bcn_widget\" data-id=\"5ad86684\" data-element_type=\"widget\" data-widget_type=\"wp-widget-bcn_widget.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<div class=\"breadcrumbs\" vocab=\"https:\/\/schema.org\/\" typeof=\"BreadcrumbList\"><!-- Breadcrumb NavXT 7.2.0 -->\n<span property=\"itemListElement\" typeof=\"ListItem\"><a property=\"item\" typeof=\"WebPage\" title=\"\u8f6c\u5230 jxpcba.\" href=\"http:\/\/www.jxpcba.com\" class=\"home\" aria-current=\"page\"><span property=\"name\">jxpcba<\/span><\/a><meta property=\"position\" content=\"1\"><\/span><\/div>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-69f445b7 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"69f445b7\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5ce012ab\" data-id=\"5ce012ab\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16ef0545 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"16ef0545\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.11.3 - 07-03-2023 *\/\r\n.elementor-widget-divider{--divider-border-style:none;--divider-border-width:1px;--divider-color:#2c2c2c;--divider-icon-size:20px;--divider-element-spacing:10px;--divider-pattern-height:24px;--divider-pattern-size:20px;--divider-pattern-url:none;--divider-pattern-repeat:repeat-x}.elementor-widget-divider .elementor-divider{display:flex}.elementor-widget-divider .elementor-divider__text{font-size:15px;line-height:1;max-width:95%}.elementor-widget-divider .elementor-divider__element{margin:0 var(--divider-element-spacing);flex-shrink:0}.elementor-widget-divider .elementor-icon{font-size:var(--divider-icon-size)}.elementor-widget-divider .elementor-divider-separator{display:flex;margin:0;direction:ltr}.elementor-widget-divider--view-line_icon .elementor-divider-separator,.elementor-widget-divider--view-line_text .elementor-divider-separator{align-items:center}.elementor-widget-divider--view-line_icon .elementor-divider-separator:after,.elementor-widget-divider--view-line_icon .elementor-divider-separator:before,.elementor-widget-divider--view-line_text .elementor-divider-separator:after,.elementor-widget-divider--view-line_text .elementor-divider-separator:before{display:block;content:\"\";border-bottom:0;flex-grow:1;border-top:var(--divider-border-width) var(--divider-border-style) var(--divider-color)}.elementor-widget-divider--element-align-left .elementor-divider .elementor-divider-separator>.elementor-divider__svg:first-of-type{flex-grow:0;flex-shrink:100}.elementor-widget-divider--element-align-left .elementor-divider-separator:before{content:none}.elementor-widget-divider--element-align-left .elementor-divider__element{margin-left:0}.elementor-widget-divider--element-align-right .elementor-divider .elementor-divider-separator>.elementor-divider__svg:last-of-type{flex-grow:0;flex-shrink:100}.elementor-widget-divider--element-align-right .elementor-divider-separator:after{content:none}.elementor-widget-divider--element-align-right .elementor-divider__element{margin-right:0}.elementor-widget-divider:not(.elementor-widget-divider--view-line_text):not(.elementor-widget-divider--view-line_icon) .elementor-divider-separator{border-top:var(--divider-border-width) var(--divider-border-style) var(--divider-color)}.elementor-widget-divider--separator-type-pattern{--divider-border-style:none}.elementor-widget-divider--separator-type-pattern.elementor-widget-divider--view-line .elementor-divider-separator,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:after,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:before,.elementor-widget-divider--separator-type-pattern:not([class*=elementor-widget-divider--view]) .elementor-divider-separator{width:100%;min-height:var(--divider-pattern-height);-webkit-mask-size:var(--divider-pattern-size) 100%;mask-size:var(--divider-pattern-size) 100%;-webkit-mask-repeat:var(--divider-pattern-repeat);mask-repeat:var(--divider-pattern-repeat);background-color:var(--divider-color);-webkit-mask-image:var(--divider-pattern-url);mask-image:var(--divider-pattern-url)}.elementor-widget-divider--no-spacing{--divider-pattern-size:auto}.elementor-widget-divider--bg-round{--divider-pattern-repeat:round}.rtl .elementor-widget-divider .elementor-divider__text{direction:rtl}.e-con-inner>.elementor-widget-divider,.e-con>.elementor-widget-divider{width:var(--container-widget-width,100%);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-divider\">\r\n\t\t\t<span class=\"elementor-divider-separator\">\r\n\t\t\t\t\t\t<\/span>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2ea4bfe elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2ea4bfe\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-280513b3\" data-id=\"280513b3\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ffb698 elementor-widget elementor-widget-heading\" data-id=\"5ffb698\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.11.3 - 07-03-2023 *\/\r\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Reasons and steps for PCB cleaning<\/h2>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-c085eee elementor-align-center elementor-widget elementor-widget-post-info\" data-id=\"c085eee\" data-element_type=\"widget\" data-widget_type=\"post-info.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<link rel=\"stylesheet\" href=\"http:\/\/www.jxpcba.com\/wp-content\/plugins\/elementor\/assets\/css\/widget-icon-list.min.css\"><link rel=\"stylesheet\" href=\"http:\/\/www.jxpcba.com\/wp-content\/plugins\/elementor-pro\/assets\/css\/widget-theme-elements.min.css\">\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\r\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-6e0aa36 elementor-inline-item\" itemprop=\"datePublished\">\r\n\t\t\t\t\t\t<a href=\"http:\/\/www.jxpcba.com\/?m=20170822\">\r\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\r\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-calendar\"><\/i>\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\r\n\t\t\t\t\t\t\t\t\t\t8\u6708 22, 2017\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t\t\t<\/a>\r\n\t\t\t\t<\/li>\r\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-162e57d elementor-inline-item\">\r\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\r\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-clock\"><\/i>\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-time\">\r\n\t\t\t\t\t\t\t\t\t\t11:29 \u4e0b\u5348\t\t\t\t\t<\/span>\r\n\t\t\t\t\t\t\t\t<\/li>\r\n\t\t\t\t<\/ul>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-57feec4a elementor-widget elementor-widget-text-editor\" data-id=\"57feec4a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.11.3 - 07-03-2023 *\/\r\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#818a91;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#818a91;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span>If PCB is not properly cleaned, certain materials used in PCB assembly or modification can lead to serious circuit functional problems.One of the most common problems of this kind is the flux.<\/span><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-f326dd5 elementor-widget elementor-widget-heading\" data-id=\"f326dd5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<h5 class=\"elementor-heading-title elementor-size-default\">Figure 1 is the PCB with too much flux.<\/h5>\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-09f156f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"09f156f\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-0ce777e\" data-id=\"0ce777e\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16fbe375 elementor-widget elementor-widget-image\" data-id=\"16fbe375\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t<style>\/*! elementor - v3.11.3 - 07-03-2023 *\/\r\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"600\" height=\"400\" src=\"http:\/\/www.jxpcba.cn\/wp-content\/uploads\/2023\/05\/tstp-004.jpg\" class=\"attachment-full size-full wp-image-649\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-31caf48 elementor-widget elementor-widget-text-editor\" data-id=\"31caf48\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><span>Flux is a chemical used to assist in welding components to PCB.However, it is regrettable that if it is not removed after welding, the flux will degrade the surface insulation resistance of the PCB, which will cause serious degradation of the circuit performance in the process.\u00a0<\/span><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-6a5d892 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6a5d892\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-f95b4eb\" data-id=\"f95b4eb\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-04347f7 elementor-widget elementor-widget-image\" data-id=\"04347f7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"567\" height=\"253\" src=\"http:\/\/www.jxpcba.cn\/wp-content\/uploads\/2018\/08\/20170811-005.jpg\" class=\"attachment-full size-full wp-image-642\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-43cb688 elementor-widget elementor-widget-text-editor\" data-id=\"43cb688\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><span>FIG. 2 is a test circuit used to show the results of flux contamination.The bridge network can simulate high impedance bridge sensor with a voltage of 2.5 V reference voltage.The differential bridge sensor outputs VIN &#8211; VIN &#8211; can connect to the gain of 101V\/V INA333.Ideally, the bridge is in equilibrium, so VIN &#8211; VIN &#8211; = 0V.However, the flux pollution will cause the actual bridge sensor voltage to drift away over time.<\/span><\/p><p><span>In this test, after the assembly, we also recorded the changes of VIN &#8211; and VOUT after a different degree of cleaning.<\/span><\/p><p><span>Not clean;<\/span><\/p><p><span>Manual cleaning, air drying;<\/span><\/p><p><span>Ultrasonic cleaning, drying, baking.<\/span><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-d606ff9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d606ff9\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-4e52667\" data-id=\"4e52667\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b3d214 elementor-widget elementor-widget-image\" data-id=\"3b3d214\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"549\" height=\"360\" src=\"http:\/\/www.jxpcba.cn\/wp-content\/uploads\/2018\/08\/20170811-006.jpg\" class=\"attachment-large size-large wp-image-645\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-09f6c94 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"09f6c94\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\r\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\r\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-24c6f8f\" data-id=\"24c6f8f\" data-element_type=\"column\">\r\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-27f151c elementor-widget elementor-widget-text-editor\" data-id=\"27f151c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><span>As can be seen from figure 3, the flux pollution has a serious effect on the output performance of the bridge sensor.In the case of uncleaned or manual cleaning, the bridge sensor voltage never reached the expected voltage of about VREF \/ 2, even after an hour of stabilization.In addition, the uncleaned circuit board also shows a large amount of external noise collection.After using ultrasonic bath cleaning and completely drying, the bridge sensor voltage is steady like a rock.\u3002<\/span><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-99d1916 elementor-widget elementor-widget-image\" data-id=\"99d1916\" data-element_type=\"widget\" data-widget_type=\"image.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" width=\"549\" height=\"399\" src=\"http:\/\/www.jxpcba.cn\/wp-content\/uploads\/2018\/08\/20170811-007.jpg\" class=\"attachment-full size-full wp-image-646\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-968e34a elementor-widget elementor-widget-text-editor\" data-id=\"968e34a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t\t\t\t\t<p><span>Looking at the output voltage of INA333, we will continuously see the performance degradation caused by improper cleaning.The uncleaned circuit boards appear with DC errors, excessive length stabilization time, and severe external noise collection;Strange, extremely low frequency noise occurs on the manually cleaned circuit boards.The root cause is the air conditioning cycle inside the test facility!<\/span><span>\u00a0<\/span><\/p><p><span>As expected, the circuit boards that were properly cleaned and dried were performing well, and none of the points in the test shifted.<\/span><span>\u00a0<\/span><\/p><p><span>In summary, improper flux cleaning can cause serious performance degradation, especially in high-precision DC circuits.For any PCB that has been manually assembled or modified, be sure to use an ultrasonic bath (or similar method) to complete the final cleaning.After the air compressor is air-dried, a slightly higher temperature is used to bake the assembly and clean the PCB, which can remove any residual moisture.We&#8217;re typically at 70 &amp; deg;C bake for 10 minutes.<\/span><\/p><p><span>This simple &#8220;keep clean&#8221; technique should help you drastically reduce the time spent on troubleshooting, and help you spend more time designing excellent, high-precision circuits!<\/span><span>\u00a0<\/span><\/p><p><span>This content is from the network, for exchange and study only, please do not use for commercial use, if it involves copyright issue please contact us to change and delete in time!<\/span><\/p>\t\t\t\t\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t<div class=\"elementor-element elementor-element-3de1032 ha-post-navigator-borders-yes elementor-widget elementor-widget-ha-post-navigation happy-addon ha-post-navigation\" data-id=\"3de1032\" data-element_type=\"widget\" data-widget_type=\"ha-post-navigation.default\">\r\n\t\t\t\t<div class=\"elementor-widget-container\">\r\n\t\t\t        <div class=\"ha-post-navigator\">\r\n            <div class=\"ha-post-navigator__prev ha-post-navigator__link\">\r\n                <a href=\"http:\/\/www.jxpcba.com\/?p=688\" rel=\"prev\"><span class=\"post-navigation__arrow-wrapper post-navigation__arrow-prev\"><i class=\"fa fa-angle-left\" aria-hidden=\"true\"><\/i><span class=\"elementor-screen-only\">Prev<\/span><\/span><span class=\"ha-post-navigator__link__prev\"><span class=\"post-navigation__prev--label\">Previous<\/span><span class=\"post-navigation__prev--title\">Company benefits\/employees<\/span><\/span><\/a>            <\/div>\r\n                            <div class=\"ha-post-navigator__separator-wrapper\">\r\n                    <div class=\"ha-post-navigator__separator\"><\/div>\r\n                <\/div>\r\n                        <div class=\"ha-post-navigator__next ha-post-navigator__link\">\r\n                <a href=\"http:\/\/www.jxpcba.com\/?p=759\" rel=\"next\"><span class=\"ha-post-navigator__link__next\"><span class=\"post-navigation__next--label\">Next<\/span><span class=\"post-navigation__next--title\">Eight kinds of PCB surface treatment process<\/span><\/span><span class=\"post-navigation__arrow-wrapper post-navigation__arrow-next\"><i class=\"fa fa-angle-right\" aria-hidden=\"true\"><\/i><span class=\"elementor-screen-only\">Next<\/span><\/span><\/a>            <\/div>\r\n        <\/div>\r\n\t\t<\/div>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t<\/section>\r\n\t\t\t\t\t\t\t<\/div>\r\n\t\t","protected":false},"excerpt":{"rendered":"<p>If PCB is not properly cleaned, certain materials used in PCB assembly or modification can\u2026\u2026<\/p>\n","protected":false},"author":1,"featured_media":649,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[14,12],"tags":[],"_links":{"self":[{"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=\/wp\/v2\/posts\/754"}],"collection":[{"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=754"}],"version-history":[{"count":0,"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=\/wp\/v2\/posts\/754\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=\/wp\/v2\/media\/649"}],"wp:attachment":[{"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=754"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=754"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jxpcba.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}