Main points of pcba test fixture1. According to the test requirements and test plates, the structural design of the fixture can be carried out after the control mode is selected. The carrier plate, pr
2022/12/09 hongling
In general, military and life support electronic products (such as satellites, aircraft instruments, submarine communications, life support medical devices, weak signal testing instruments, etc.) must
2022/12/09 hongling
PCBA test fixture classification and manufacturing processPCBA test fixture is a very important equipment in PCBA processing plant, which is generally placed at the end of the production link to check
2022/12/09 hongling
The manufacturing process of the test fixture is as follows:1. During the test, the final fixture control mode shall be selected according to the test requirements of the tested product and customers,
2022/12/09 hongling
Detailed process of PCBA:1 Solder paste printingUnfreeze and stir the solder paste just taken out of the cold storage room, and then accurately leak print it onto the PCB pad through the solder paste
2022/12/09 hongling
1.线拐角采用45度角设计一般线材拐角处会有粗细变化，容易发生发射现象。在拐角设计中，直角设计最差，圆角设计效果最好。但是圆角对于PCB设计来说比较麻烦，所以一般采用45度角就可以了。除非对于非常敏感的线路才会采用圆角。2.输入端、输出端互相垂直当输入端与输出端平行时容易产生反射干扰。两相邻层的布线要互相垂直，必要时加地线隔离，避免产生寄生耦合。 3.加宽电源、地线宽距电源、地线之间加耦电容，加宽
2019/09/02 hongling
PCB PCBA工序流程 PCB流程联系厂家—开料—钻孔—沉铜—图形转移—图形电镀—退膜—蚀刻—绿油—字符—镀金手指—成型—测试—终检 PCBA流程锡膏印刷 — 锡膏测厚— 贴片机贴装— AOI检测 — DIP插件加工— 波峰焊接— 焊后清洗— 功能测试— 成品组装—成品检测
2019/09/02 hongling
PCB生产流程：一、联系厂家首先需要联系厂家，厂家会有人为你报价，下单，和跟进生产进度。二、开料目的：根据工程资料MI的要求，在符合要求的大张板材上，裁切成小块生产板件．符合客户要求的小块板料．流程：大板料→按MI要求切板→锔板→啤圆角磨边→出板三、钻孔目的：根据工程资料，在所开符合要求尺寸的板料上，相应的位置钻出所求的孔径．流程：叠板销钉→上板→钻孔→下板→检查修理四、沉铜目的：沉铜是利用化学方
2019/09/02 hongling
