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: 亚洲一区二区无码偷拍| 亚洲综合在线另类色区奇米| 欧美人善z0zo性伦交高清| 欧美午夜成人片在线观看| 久久亚洲精品无码网站| 天天摸日日添狠狠添婷婷| 99re6热精品视频在线观看| 国产成人亚洲精品无码电影 | 国产成人精品日本亚洲77美色 | 亚洲精品av中文字幕在线| 女的被弄到高潮娇喘喷水视频| 国产精品久久自在自线青柠| 强伦姧人妻免费无码电影| 无码性午夜视频在线观看| 亚洲成a人片在线观看www| 欧美日韩视频在线第一区| 2021久久天天躁狠狠躁夜夜| 欧美 日韩 亚洲 在线| 麻花传媒mv在线观看| 亚洲人做受???高潮游戏| 久久精品国产只有精品96| 少妇一夜三次一区二区| 国产精品国产三级国产剧情| 精品国产福利一区二区| 夜夜欢性恔免费视频| 国产成人综合色在线观看网站| 天天做av天天爱天天爽| 人妻久久久一区二区三区| а√天堂资源官网在线资源| 四川少妇被弄到高潮| 99re视频热这里只有精品7| 久久av一区二区三区| 欧美日韩精品成人网视频| 国产日产欧产精品精品软件| 亚洲第一福利网站在线| 中文字幕 亚洲精品 第1页| 极品少妇xxxx精品少妇偷拍| 亚洲国产欧美国产综合一区 | 内射女校花一区二区三区| 日本阿v网站在线观看中文| 羞羞视频在线观看|