双乳被一左一右吃着的,无码人妻精品一区二区三区在线,真人高清实拍女处被破的视频,啊灬啊灬啊灬快灬高潮了女

Welcome to the official website of Shenzhen Ledfocus Precision Manufacturing Co., Ltd.!
News
Company news

Where are you now:Home >> News >> Company news
What materials are required for smt patch proofing?
Time:2021-11-17 Read: 2144

As a professional pcba proofing platform, we often encounter incomplete information provided by many customers, resulting in delays in delivery. In order to save time and improve consumption efficiency, the editor of Kuaifa Zhizhi will share today: the demand for proofing in smt What information is provided?


Gerber data file: If you choose the smt patch processing plant to stop the placement, you need the Pad layer, solder mask layer, silk screen layer, and stencil layer in the Gerber data when opening the stencil and manufacturing the patch process; if only smt is required When the assembly plant suspends the OEM business, it only needs to provide the documents required by the processing plant of the smt OEM; if your board is a jigsaw, you need to provide the jigsaw file.

ab5.jpg

BOM: It is the bill of materials. When the smt patch proofing is stopped, the material list required by theory is included. The information must be detailed and accurate. If there is any change, it should be noted on the BOM.


Coordinate file: It is required to provide the origin of the PCB board for smt patch processing, which is usually placed in the lower left corner of the design, and the location information of the components needs to be drawn. The extension is required to be in .txt or Excel format; the unit is metric, and mm (millimeters) is used by default. .


Location map file: The pad and silk screen layer of the PCB file exported from the R&D software, smt placement is used to check whether the placement of the SMT material is correct.


Test guidance documents: guidance and technical requirements for professional parameters in testing.

Contact Us
Shenzhen Ledfocus Precision Manufacturing Co., Ltd.

Address: Room 1204, Dahong (Xinqiao) Science and Technology Innovation Park, No. 48, Xinyu Road, Shajing Street, Baoan District, Shenzhen

Phone: 0755-29727486 0755-83734215 0755-83734236

Person in charge: Mr. Fan 13088821718

Email: roman@leikashi.com

Business section #605

Email: allen@leikashi.com

Website: www.ya198.com

Service hotline
0755-83734236
? 2020 Shenzhen Ledfocus Precision Manufacturing Co., Ltd. All rights reserved 粵ICP備2021139374號(hào)
  • Links:
51精产国品一二三产区区别| 久久无码人妻一区二区三区午夜| 欧美性生交18xxxxx无码| 久久97精品久久久久久久不卡| 婷婷综合久久狠狠色99H| 精品久久久久久中文字幕大豆网 | 国产成人无码av| 各处沟厕大尺度偷拍女厕嘘嘘 | 国产精品国色综合久久| 人妻少妇精品无码专区动漫| 国产性猛交╳xxx乱大交| 精品无码人妻一区二区免费蜜桃| 国产jizzjizz全部免费看| 边啃奶头边躁狠狠躁视频| 中文成人无字幕乱码精品区 | 波多野结衣作品| 国产人妻大战黑人20p| 免费古装a级毛片无码| 亚洲av成人无码久久精品老人| 美女人体诱惑| 国产精品无码一区二区三级| 中文成人无字幕乱码精品区| 老板含着她的花蒂啃咬高潮的视频| 亚洲日韩国产av无码无码精品| 性高湖久久久久久久久aaaaa| 久久精品国产亚洲AV影片| 欧洲熟妇色xxxxx欧美老妇伦| 国产精品后入内射日本在线观看| 老熟女重囗味hdxx70星空| 老地方在线观看免费资源| 国产一区二区三区成人欧美日韩在线观看 | 亚洲乱码一区二区三区在线观看| 男受被做哭激烈娇喘gv视频 | 久久人妻无码毛片a片麻豆| 最近免费观看在线中文2019| 粉嫩虎白扒开小泬| 久久99精品久久久久子伦| 一边亲着面膜胸口| 性色av网站| 丰满大爆乳波霸奶| 男女做爰猛烈动高潮a片免费应用|