PRECISION SOLDER RESIST REGISTRATION INSPECTION METHODPROBLEM TO BE SOLVED: To provide a precision solder resist registration inspection method.MARK L DELANEYマーク エル デレイニー
F:The tolerance of soldermask exposure registration(防焊绿漆印刷精淮度):+/-2mil(部份厂商宣称可以做到+/-1mil)。 如果是「Non-Solder Mask Defined」布线,这个尺寸经精度关系到防焊开窗与焊垫之间的单边距离。 ?G:这个尺寸应该与E相同。 后记: 深圳宏力捷并不是PCB板厂的相关人员,纯粹是因为产品设计生产时...
所以在相邻焊垫间印刷防焊绿漆可以起到防止焊锡短路的问题。 ▪F:The tolerance of soldermask exposure registration(防焊绿漆印刷精淮度):+/-2mil(部份厂商宣称可以做到+/-1mil)。 如果是「Non-Solder Mask Defined」布线,这个尺寸经精度关系到防焊开窗与焊垫之间的单边距离。 ▪G:这个尺寸应该与E相同。 ...
In the above image, the silk to solder mask clearance is defined as 2 mil for the Top Overlay layer; simply create a second PCB design rule for silk to solder resist clearance if you want to add the rule to the Bottom Overlay. Note that this is only defined for pads (as given in ...
Black solder resist Green solder resist Black, red, white, green solder resist Direct imaging of solder mask has become more and more important over the last years based on further improvements made by both, solder mask ink suppliers and DI machine vendors. The most important benefits from ...
随着时代的演进与雷射条码的导入,为了可以用光学扫描判读电路板上的雷射条码,一般不建议使用绿色以外的防焊。其实【Solder Mask】还有个比较传神的英文名称叫做【Solder Resist】,但用的人比较少。 「Solder Mask」的目的与作用 【Solder Mask】位于电路板的最上层(Top layer)与最底层(Bottom layer)铜箔线路之上,用来...
在電路板中又擔任了什麼角色?也有人稱之為【Solder resist】。 何謂「Solder Mask」、S/M? 【Solder Mask】的正確中文名稱應該叫做「阻焊」或「防焊」。顧名思義,【Solder Mask】最初就是用來阻隔焊接作業時焊錫不小心黏附到不該焊接的區域,所以你所看的PCB外觀顏色其實是事後印刷上去的防焊漆(也就是阻焊層)...
6 design tips to prevent solder resist issues To evade solder mask errors and ensure a successful PCB manufacturing process, follow these guidelines during the design phase. 1. Include solder mask expansions Avoid designing extremely small solder mask openings, especially forHDI boards. Add solder ma...
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Suppliers can nearlyalways hold soldermask registration within a true position of 0.003". Supplierswith more modern imaging technology may be able to hold 0.002". You don't saywhat pitch your part is, but it looks to me like the soldermask registrationmay be close to accepted registration ...