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(wù),零缺陷,輔助研發(fā)”PCBA訂購單需求。
PCB制造
PCB制造
Sample PCB quotation question answer
05Dec
Summer 0條評論

Sample PCB quotation question answer

Because there are so many factors that make up the prICe of sample PCB, it is very difficult for many electronic manufacturers to make a clear understanding of their skilLED procurement. If they just start to purchase, they can only compare the quotation of the previous board making. It is also difficult to quote a very standard price for businesses just started in a PCB factory without understanding the factors that make up PCB prices. A SMAll editor who has been engaged in engineering and MARKet in the circuit board industry for many years will give you answers one by one here. Welcome to exchange


PCB


Sample PCB price

Here we mainly describe the various technical factors that make up the price of the sample PCB. Other factors that affect the cost of PCB manufacturing will not be described one by one, such as the region of the PCB manufacturer, the process expertise of the PCB manufacturer, the role and quality positioning of the PCB manufacturer, and so on. The precondition for our explanation is to quote a sample PCB from a relatively fixed cooperative PCB supplier. We will explain the quotation of other batches of PCB in another article.

1The first thing that affects the cost of the sample PCB is whether it is urgent, because the time required for proofing is relatively tight, which is closely related to this factor. Generally, if the single and double sided samples need to be delivered 24 hours urgently, an urgent fee of about 200 yuan may be charged.

2Invoice fees. Some electronic manufacturers have very formal financial procedures, so they need to provide invoices for every purchase project. Everyone knows this very well, and taxes are collected when issuing invoices. Therefore, circuit board manufacturers generally add the invoice taxes to the price.

3Express delivery fee: generally, companies that have cooperated with each other for a long time and are close to each other will deliver goods free of charge, while cities that are far away from each other and have a small amount of cooperation will adopt express delivery. Ordinary express delivery is generally free of charge. If the price of Shunfeng Express is relatively high, the freight may be charged. See the express company website for the specific freight price.

4The flying probe test cost is generally small in number and SIMple in data, and most of them do not fly test or fly test is free. If the data is very complex and large in number, it will occupy the machine time of the Circuit board manufacturer, so the fly test will also be charged.

5For the cost of surface treatment, because the cost of different surface treatment of PCB is very different, for example, the gold for gilding is very expensive, so the price of the PCB with gilding process is generally about 100 yuan higher than that of the PCB with ordinary tin spraying process.

6Ink costs. In the production of PCB, most of the solder mask character inks are green white characters and ordinary inks. If there is a special demand for making boards and the order quantity is very small, the manufacturer will waste a lot of ink, so the price may be tens of dollars higher when using non green white characters or when specifying a brand of ink.

7Board cost, which mainly refers to the size of PCB. The larger the size of PCB, the more PCB base material will be consumed. PCB base material is the largest raw material cost in PCB production, so the general price calculation is based on the size multiplied by the fixed board cost coefficient.

8For other costs, such as fixed project cost and film cost, the price base of film cost is unchanged, but the more layers of circuit boards, the more film sheets will be consumed, so the cost will be higher. The project cost mainly involves the processing of project data and the production of production tools. The longer the production time of boards with more layers, the higher the project cost will be, but the cost is generally fixed.

The above is the price composition of the circuit board proofing described above. Because there are many projects involved, it is difficult for ordinary people to make clear and troublesome. In addition, because most of the templates involve a small amount of money and are generally proofing before mass production, many cooperative circuit board manufacturers adopt the form of contracting by layers. For example, how much is a single panel proofing model and how much is a multi-layer panel proofing model? Because it is waiting for the confirmation of the template to do the following batch, the template price calculated by model is very favorable. Generally, if there are few samples, they are almost made at a loss. PCB manufacturers that make profits by proofing and electronic companies that only do scheme design prefer to cooperate in the way of charging by project. The advantages and disadvantages of the two methods depend on the role positioning of both parties.

點(diǎn)擊
然后
聯(lián)系
主站蜘蛛池模板: 亚洲国产综合精品2020| 色欲色欲天天天www亚洲伊| av免费网址在线观看| 插插插精品亚洲一区| 久久久久麻豆v国产精华液好用吗| 亚洲精品无码午夜福利中文字幕| 激情五月色综合国产精品| 麻豆国产一区二区三区四区| 日韩精品无码中文字幕一区二区| 国产草莓视频无码a在线观看| 婷婷色香合缴缴情av第三区| 亚洲码欧美码一区二区三区| 人人做人碰人人添| 国产做a爱片久久毛片a片高清| 欧美白胖bbbbxxxx| 九九99亚洲精品久久久久| 大肉大捧一进一出好爽视频动漫| 久久久久国产精品人妻aⅴ院| 久久96热在精品国产高清 | 2020精品国产福利在线观看香蕉| av片亚洲国产男人的天堂| 人人妻人人澡人人爽不卡视频| 麻豆天美国产一区在线播放| 国产午夜福利精品一区| 无遮无挡三级动态图| 欧美激情a∨在线视频播放| av片亚洲国产男人的天堂 | 精品亚洲成a人无码成a在线观看| 狠狠97人人婷婷五月| 国产精品丝袜亚洲熟女| 亚洲精品有码在线观看| 国产成人免费无庶挡视频| 国产草草影院ccyycom| 亚洲欧美日本中文字不卡| 午夜爽爽爽男女免费观看hd| 美女极度色诱视频国产| 亚洲浮力影院久久久久久| 久久精品国产一区二区三区肥胖| 无码伊人久久大杳蕉中文无码| 高清偷自拍第1页| 国产精品_国产精品_k频道w|