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: 婷婷开心色四房播播| 天天爽天天爽天天片a| 天天上天天添天天爱少妇| 特黄 做受又硬又粗又大视频| 丰满的少妇xxxxx青青青| av色综合久久天堂av色综合| 国产熟睡乱子伦视频| 国产偷窥熟女高潮精品视频| 日韩无码网站| 亚洲国产欧美在线人成人| 精品少妇爆乳无码aⅴ区| 男女做aj视频免费的网站| 日本丰满人妻xxxxxhd| 乱中年女人伦av三区| 人妻一区二区三区高清av专区| 中文字幕一本性无码| 免费无码va一区二区三区| 蜜臀av人妻国产精品建身房| 亚洲欧洲精品成人久久曰影片 | 大屁股人妻女教师撅着屁股| 国产va免费精品高清在线30页| 国产精品污www在线观看| 国色天香天天影院综合网| 国产成人精品午夜福利a| 美女久久| 久久国产中文娱乐网| 国产美熟女乱又伦av果冻传媒 | 插我一区二区在线观看| 午夜阳光精品一区二区三区| 国模大胆无码私拍啪啪av| 亚洲色偷偷色噜噜狠狠99网| 成人毛片100部免费看| 无码一区二区三区视频| 精品国产一区二区三区久久狼 | 久久精品国产亚洲a片高清不卡| 日日噜噜噜噜夜夜爽亚洲精品| 亚洲色无码专区在线播放| 欧美黑人巨大videos极品| 国产精品久久久久久一级毛片| 羞羞影院成人午夜爽爽在线| 波多野av一区二区无码|