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: www.yhn567.com

Service hotline
0755-83734236
? 2020 Shenzhen Ledfocus Precision Manufacturing Co., Ltd. All rights reserved 粵ICP備2021139374號(hào)
  • Links:
久久午夜夜伦鲁鲁片无码免费| 久久艳务乳肉豪妇荡乳a片| 亚洲色欲色欲大片www无码| 娇妻玩4p被三个男人伺候电影| 成年女人毛片免费视频| 老熟妇仑乱视频一区二区| 两女女百合互慰av赤裸无遮挡| 久久久久久久久毛片精品| 欧美精品久久96人妻无码| 国产精品久久一区二区三区| 日日天干夜夜狠狠爱| 在厨房拨开内裤进入毛片 | 国产综合精品| 伸进内衣揉捏她的乳尖视频| 久久人午夜亚洲精品无码区| 99热这里有精品| 亚洲娇小与黑人巨大交| 67194熟妇在线永久免费观看| 国产视频在线观看| 久久精品99国产精品日本| 富婆一对一刺激交友| 日韩激情| 色婷婷久久综合中文久久蜜桃av| 99国产欧美久久久精品| 女女啪啪激烈高潮喷出网站| 美女张开腿让男人桶爽| 无码天堂亚洲国产av久久| 久久久久99精品成人片直播| 国产精品久久久久久久免费a片| 斯文教授×貌美学生1v1h| 我和两个老师的浮乱生活| 日本高清视频www| 亚洲精品女同中文字幕| 久久精品国产亚洲av水果派| 裸体女模露出生殖部位| 丰满少妇被粗大猛烈进人高清| 色欲无码国产喷水av精品| 免费无码一区二区三区| 中国熟妇videosexfreexxxx片 | 久久www免费人成精品| 粗大的内捧猛烈进出|