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1、.1 基本信息（1） 问题：the board thickness(2.36+/-0.05mm) is too hard to control for us 对我们来说，板厚2.36+/-0.05mm太难管控 建议：Can we control the finished board thickness as 2.4+/-10%mm？Please comfirm! 请确认我们可否控制完成板厚为2.4+/-10%mm？（2） 问题：As show in figure, manufacturing requirements specification, using 17 um (1/2 oz) ba
2、sed copper, finished surface copper: 46 um (0.00181 ); it is different from what shows 1oz for stackup.如下图所示，制作说明要求使用17um基铜，完成铜厚46um.这跟叠构中的1OZ铜厚不符.建议：Use 1 oz based copper, finished surface copper: 46 um (0.00181 ) 使用1oz基铜，完成铜厚46um.（3） 问题：As show in the below figure, outer copper is 1 oz.We cant mak
3、e sure whether the finished surface copper is 1 oz. 如下图所示，外层铜厚为1OZ，我们不能确定完成铜厚是否为1OZ. 建议：Using Hoz base copper, finished surface 1 oz copper; 使用H oz基铜，成品铜厚为1oz.（4） 问题：The stack-up your company provided did not conform the requirements of impedance, and the inner layers need to use 3 Pre-preg.贵司提供的叠构不
4、符合阻抗要求，且内层需要用3张pp建议：Adjust the thickness of the Pre-preg and the core。See below. 调整芯板和PP的厚度，见下图（5） 问题：The make-up like as the attachment （12PCS/PNL），in order to save the costing ,please confirm if can accept 3 X-OUT per panel? 如附件所示拼版（12pcs/PNL），为了节约成本，请确认可否接受每个拼版内有3个打叉板？ 建议：Accepted 3 X-OUT per pan
5、el,but not exceed 5% of order quantity.And pack them separately when shipping. 接受每拼版出3个打叉板，但不超过总订单数的5%，且出货时把打叉板分开包装.（6） 问题：As show in figure, Your company requirements according to level 3 standard controls, this requirement is too hard to control for us 如下图所示，贵司要求按3级标准管控，我们较难管控. 建议：Controlled by le
6、vel 2 standard production. 按2级标准管控生产.（7） Please confirm the attached panel drawing.请确认附件拼版图（8） Above is our suggested stackup，please confirm. 上图为我司建议叠构，请确认.（9）问题：Your company have not provided the tolerance of board thickness，please confirm whether we could control it as 1.6mm+/-10%？贵司没有提供板厚公差，请确认我司
7、可否按1.6mm+/-10%来管控？（10）问题：We cant find the finish copper thickness and solder mask color in spec ,please provide. 我们在说明书中找不到完成铜厚和防焊颜色，请提供.建议：Finish copper thickness:1oz, SM color: matte green 完成铜厚1OZ 防焊颜色：哑光绿色（11）问题：Please see Fig1,the number in gerber is different from HIT-20-001200-001 in spec. 请看图
8、一，gerber中的料号跟说明书中的HIT-20-001200-001不相符. 建议：We will ignore this difference and follow the gerber file to produce this board. 我们将忽略这个不同点，然后按照gerber来制作. （12）问题：The customer requires use FR - 402 material, but we have not this kind of sheet material . 客户要求使用FR-402板材，但我们没有这种板材. 建议：We will use our common
9、material production，Please confirm！Like KB6160 or equivalent instead of FR-402. 我们将使用常用的板材生产，请确认.像KB6160或同等级的板材来代替FR-402. （13）问题：In order to avoid the panel board scraped in process, we would like to change the sharp corner to round angle as R1.0mm. 为了避免板子在生产过程中刮花，我们将尖的角倒角为R1.0mm 的角. （14）问题：See belo
10、w figure，50 Ohm impedance is controlled in the gerber, butthe e-mail indicated that had no controlled impedance;Actually, the calculation also cannot reach 50 Ohm impedance values . 见下图，gerber中要求做50ohm阻抗控制，但邮件中说明不用做阻抗控制。事实上也达不到50ohm阻抗值. 建议：Ignore the impedance control. 忽略阻抗控制. （15）问题：There is no 60m
11、il core on our store，we will adjust the stackup as below fig. B show. 我们仓库没有60mil的芯板，我们将调整叠构，如图B所示. （16）问题：It is too hard to keep conductor widths and spacing within 15% of data for us. 要将线宽距控制在+/-15%，对我们来说太难了 建议：We suggest to relax it as +/-20% to process . 我们建议放宽到+/-20% （17）问题：You do not specify t
12、he incept standard. We will follow IPC-A-600G Class2 and IPC-6012B Class2 to build this board. 贵司没有指明验收标准，我们将根据IPC2级标准来生产板子. （18）问题：It doesnt specify thickness of Ni and Au. 没有说明镍和金的厚度. 建议：We will control as : Ni: 3-6um min and Au0.05um 我们将管控为：镍最少3-6um，金0.05um （19）问题：We cant input the four files（see
13、 below fig.） by our software 用我们的软件打不开下图的4个文件. 建议：We will ignore the four files. 我们将忽略这4个文件. （20）问题：We are not sure the surface finish of this board，because the requirement of two files are different.（See below pictures.） 我们不能确定这个板的表面处理，因为2个文件的要求不同.（见下图） 建议：We will follow immersion gold to produce.( Au:0.05um(min),Ni:3-6um) 我们将按沉金制作.（金厚最少0.05um，镍厚3-6um） （21）问题：Please see below picture, the dimension between the gerber and the drawing is different. 请看下图，图纸和gerber的尺寸不一样. 建议：We will follow gerber file to produce. 我们将依gerber制作. （22）问题：We dont know the usage of these fi
