国产午夜精品一区理论片飘花,亚洲av永久纯肉无码精品动漫,国产成年无码久久久久毛片,国产欧美一区二区精品性色

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: 2179

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: m.yhn567.com

Service hotline
0755-83734236
? 2020 Shenzhen Ledfocus Precision Manufacturing Co., Ltd. All rights reserved 粵ICP備2021139374號(hào)
  • Links:
免费sm羞辱调教视频网站| 成人区精品一区二区婷婷| 久久99精品久久久久婷婷| 98国产精品综合一区二区三区| 亚洲av无码成人yellow| 男男大尺度无码a片在线观看| 国产精品国产三级区别第一集| 欧卅无码a片少妇人妻久久尤物| 日本老熟妇maturebbw| 国产精品v欧美精品v日韩精品| 国内精品久久久久久久影视麻豆| 影音先锋中文字幕人妻| 熟女性饥渴一区二区三区| 日产精品高潮呻吟av久久| 国产一二三精品无码不卡日本| 影音先锋中文字幕人妻| 欧美牲交a欧美在线| 极品丝袜乱系列全集大全目录| 亚洲av永久无码精品水牛影视| 在线无码VA中文字幕无码| 精品熟女碰碰人人a久久| 人妻av无码专区久久绿巨人| 公主从小H后必须夹玉势SM| 久久国产avjust麻豆| 亚洲AV无码乱码国产精品94色| 年轻丰满的继牳理伦片中文| 少妇AV射精精品蜜桃专区| 免费不卡在线观看av| chinese猛男自慰gv网站| 极品少妇一区二区三区四区| 国产午夜精品一区理论片飘花| 国产美女精品一区二区三区| 色偷偷人人澡人人爽人人模| 被少妇滋润了一夜爽爽爽| 太大太粗好爽受不了| 69国产成人综合久久精品| 欧美性生交xxxxx久久久| 波多野42部无码喷潮在线| 国产精品国产三级区别第一集| 老公一到晚上就日不停| 色综合久久一区二区三区|