午夜夜伦鲁鲁片免费无码-国产裸拍裸体视频在线观看-亚洲无码视频在线-学生妹亚洲一区二区-国产亚洲欧美日韩亚洲中文色

鑫景福致力于滿足“快速服務,零缺陷,輔助研發”PCBA訂購單需求。
行業新聞
行業新聞
What preparations are made before PCBA processing?
29Nov
Boy 0條評論

What preparations are made before PCBA processing?

What preparations are made before PCBA processing?
PCBA processing refers to the process of welding electronIC components on the surface of PCB to form PCBA, whICh is calLED PCBA processing for short. If there is a quality problem in a certain processing link and the production is stopped, this will bring a certain economic loss to the PCBA processing plant. In order to carry out the processing smoothly, it is particularly important to make corresponding preparations before PCBA processing. Next, I would like to share with you what preparations have been made before PCBA processing, and I hope to give you some help!

pcb board

PCBA processing plant
1. According to the PCBA processing documents provided by the customer, the BOM engineer is required to convert the documents into the company's internal production documents, and the documents need to be reviewed at the same time. The audit contents include:
① Check whether the physical PCB meets the processing requirements; ② BOM conversion, optimize material description, model, usage, tag number, packaging, brand, etc; ③ Convert Gerber files and print machining drawings; ④ Make relevant process requirements according to PCBA processing procedures; ⑤ Distinguish the BOM file from SMT and DIP;
⑥ Finally, the engineering clerk issues the process documents to the relevant departments for recycling;
2. Confirm whether the steel MESh, fixture and solder paste are ready in advance according to the order plan. If a new steel mesh and fixture need to be opened, it needs to be completed 1 day in advance, and the solder paste needs to be unfrozen 4 hours in advance and stirred 5 minutes before going online;
3. Material inspection: IQC checks whether the materials match the BOM file according to the BOM list issued by the project;
4. Baking of components: PCB and components shall be baked according to the specified temperature and time when they are not in the original packaging;
5. Material preparation: according to BOM requirements, SMT mounting and DIP plug-in processes need to pick materials in the warehouse in advance, SMT needs to load materials on the Feeder in advance, and DIP materials need to be formed in advance;
6. As the temperature of the equipment rises and falls for a long time, the wave soldering and reflow soldering temperatures need to be set in advance during wire replacement.
The above is the explanation given by the editor of pcb circuit board company. If you want to know more about PCBA, you can go to our company's home page to learn about it. In addition, our company also sells various circuit boards,
High frequency circuit board and SMT chip are waiting for your presence again.

點擊
然后
聯系
主站蜘蛛池模板: 国产a∨国片精品青草视频| 国产精品久久久久久久久久免费| 婷婷色香合缴缴情av第三区| 97超级碰碰碰久久久久| 精品无码av一区二区三区不卡| 亚洲人成人影院在线观看| 日本精品一区二区三区在线视频 | 亚洲中文无码成人手机版| 午夜性爽视频男人的天堂| 国产精品水嫩水嫩| 精品少妇一区二区三区免费观| 中文字幕亚洲一区一区| 亚洲精品一区二区丝袜图片| 香蕉久久久久久久av网站| 亚洲欧洲成人a∨在线| 久久亚洲精品无码播放| 人妻激情另类乱人伦人妻| 中文字幕精品亚洲无线码二区 | 久久亚洲国产精品影院| 欧美精品a∨在线观看| 国内精品一区二区福利视频| 成人综合婷婷国产精品久久蜜臀 | 在线无码av一区二区三区| 精品午夜福利1000在线观看| 国产精品无码人妻在线| 亚洲国产成人精品无码区二本| 国产色欲av一区二区三区| 欧洲亚洲色视频综合在线| 亚洲hdmi高清线| 欧美人与动牲交app视频| 精品无码人妻一区二区三区品| 制服丝袜av无码专区完整版| 成人国产精品秘?鲁鲁3D| 亚洲人成网7777777国产| 国产成人无码精品午夜福利a| 亚洲国产激情五月色丁香小说| 久久人妻少妇嫩草AV蜜桃漫画| 久久综合亚洲色1080p| 亚洲人成人网色www| 内射白嫩少妇超碰| 天美传媒一区二区|