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✏️ Editing: 1702413993.M925686P3311477.depro4.fcomet.com,S=48018,W=48320:2,S

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From: "bichengpcb@163.com" <bichengpcb@163.com>
Subject: Bicheng PCB
To: info@autozone.com.sa
Sender: sales13@tradepro.net
Reply-To: bichengpcb@163.com
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<DIV>
Castellated PCB| Edge Plated PCB<o:p></o:p>
Hi Manager,<o:p></o:p>
<o:p>&nbsp;</o:p>
Background<o:p></o:p>
When the daughter board is welded to the motherboard, if the circular hole of the daughter board is welded to the motherboard with solder, the large size of the circular hole and the problem of pseudo soldering make it impossible for the daughter and mother board to be well electrically connected. Half holes appeared. <o:p></o:p>
<o:p>&nbsp;</o:p>
The process of semi-metallizing holes on the edge of PCB is mature in PCB fabrication. How to control the quality after forming the semi-metallized holes on the edge become the hot topics.<o:p></o:p>
<o:p>&nbsp;</o:p>
Quality topics:<o:p></o:p>
A) The copper burrs of the hole-wall<o:p></o:p>
B) The residue<o:p></o:p>
<o:p>&nbsp;</o:p>
Features<o:p></o:p>
1)&nbsp;&nbsp;&nbsp; The semi-metallized holes are set in a whole row<o:p></o:p>
2)&nbsp;&nbsp;&nbsp; Small individual size<o:p></o:p>
3)&nbsp;&nbsp;&nbsp; Mostly used on the carrier board as a daughter board of the motherboard<o:p></o:p>
<o:p>&nbsp;</o:p>
PCB Services<o:p></o:p>
a) Prototype, small runs and mass production supply<o:p></o:p>
b) FR-4 and Rogers RO4350B, RO4003C, TLX-8 etc.<o:p></o:p>
c) Double sided to 32 layers<o:p></o:p>
d) Various surface finishes: HASL, Immersion gold, Immersion tin, Immersion silver, OSP<o:p></o:p>
e) Various solder mask: Green, Blue, Matt blue, Red, Yellow, Black, Matt black, White<o:p></o:p>
f) Door to door shipping service<o:p></o:p>
<o:p>&nbsp;</o:p>
If you have requirement on edge castellation PCB, please reply back to this email by your gerber files and I will get back to you ASAP.<o:p></o:p>
<o:p>&nbsp;</o:p>
Kevin Liao | Business development<o:p></o:p>
Bicheng PCB | <A href="mailto:sales@bichengpcb.com">sales@bichengpcb.com</A> |Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN<o:p></o:p>
If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as “remove” in the subject line.<o:p></o:p>
<o:p>&nbsp;</o:p>
Bicheng is located at Baoan, Shenzhen, China 518103.
&nbsp;
&nbsp;
At 2020-05-18 10:51:00, "bichengpcb | RF PCB" &lt;<A href="mailto:sales@bichengpcb.com">sales@bichengpcb.com</A>&gt; wrote:<o:p></o:p>
<o:p>&nbsp;</o:p>
&nbsp;
BGA PCB<o:p></o:p>
Hi Manager,<o:p></o:p>
BGA is ball grid array packaging technology, high density surface assembly packaging technology. It&#39;s a type of surface-mount packaging used for integrated circuits(IC). They can be found in many interconnection pins devices such as microprocessors, communication equipment and control industrial machinery etc.<o:p></o:p>
&nbsp;<o:p></o:p>
Advantages<o:p></o:p>
a)&nbsp;&nbsp;&nbsp; High density saves the soldering space. It greatly avoid the danger of accidentally bridging adjacent pins with solder grew. <o:p></o:p>
b)&nbsp;&nbsp;&nbsp; Function is increased due to the increase in the number of pins<o:p></o:p>
c)&nbsp;&nbsp;&nbsp; Easy to let tin on pads when solder melts on PCB due to its self-centering<o:p></o:p>
d)&nbsp;&nbsp;&nbsp; High reliability and good electrical performance<o:p></o:p>
e)&nbsp;&nbsp;&nbsp; The heat conduction is much better than the packages with legs between the PCBs<o:p></o:p>
<o:p>&nbsp;</o:p>
Characters<o:p></o:p>
1)&nbsp;&nbsp;&nbsp; Many micro vias are used<o:p></o:p>
2)&nbsp;&nbsp;&nbsp; Via finished diameter ranging 8 to 12mil. <o:p></o:p>
3)&nbsp;&nbsp;&nbsp; Vias are needed to be plugged, no solder mask onto BGA pads and no drill on BGA pads.<o:p></o:p>
<o:p>&nbsp;</o:p>
PCB Service: 1) Multilayer PCB on FR-4 Tg135℃, Tg170℃,RO4350B, RO4003C<o:p></o:p>
2) Prototype, small runs and mass production<o:p></o:p>
3) Various surface finishes: HASL, Immersion gold, Immersion tin, Immersion silver, OSP<o:p></o:p>
4) Various solder mask: Green, Blue, Matt blue, Red, Yellow, Black, Matt black, White<o:p></o:p>
5) Door to door shipment<o:p></o:p>
<o:p>&nbsp;</o:p>
If you have requirement on BGA PCBs, please do not hesitate to contact us by simply reply back to this email.<o:p></o:p>
<o:p>&nbsp;</o:p>
Kevin Liao | Business development<o:p></o:p>
Bicheng PCB | <A href="mailto:sales@bichengpcb.com">sales@bichengpcb.com</A> |Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN<o:p></o:p>
If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as “remove” in the subject line.<o:p></o:p>
<o:p>&nbsp;</o:p>
Bicheng is located at Baoan, Shenzhen, China 518103.
&nbsp;
&nbsp;
At 2020-03-16 15:01:00, "bichengpcb | RF PCB" &lt;<A href="mailto:sales@bichengpcb.com">sales@bichengpcb.com</A>&gt; wrote: <o:p></o:p></DIV>
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8 OZ Heavy Copper PCB Built On Aluminum Base<o:p></o:p>
<o:p>&nbsp;</o:p>
Hi Manager,<o:p></o:p>
Heavy copper PCB can burden large current passing through steadily and speed up heat dissipation of high heat generated by large current.<o:p></o:p>
<o:p>&nbsp;</o:p>
This type of 8 oz Heavy Copper PCB Built On Aluminum Base may be of considerable interest to you. <o:p></o:p>
<o:p>&nbsp;</o:p>
Base Material:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Aluminum Core, 1W/MK <o:p></o:p>
Copper Weight: &nbsp; 8 oz<o:p></o:p>
Board Thickness: 1.2 mm ±10%<o:p></o:p>
Layer Count: Single sided<o:p></o:p>
Board Size:&nbsp;&nbsp; 75 x 64 mm/1up<o:p></o:p>
Solder Mask: &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NO<o:p></o:p>
Surface Finish:&nbsp;&nbsp;&nbsp; OSP<o:p></o:p>
Via: NO<o:p></o:p>
Warpage:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ＜0.23%<o:p></o:p>
Net Weight:&nbsp;&nbsp; 0.02 kg/pcs<o:p></o:p>
Acceptable Standard:&nbsp; IPC-Class-2<o:p></o:p>
Lead time for prototype:&nbsp;&nbsp;&nbsp; 10 working days<o:p></o:p>
Shelf life:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6 months<o:p></o:p>
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<o:p>&nbsp;</o:p>
Contact us today for more preferential price.<o:p></o:p>
<o:p>&nbsp;</o:p>
Best regards<o:p></o:p>
<o:p>&nbsp;</o:p>
Kevin Liao | Business development<o:p></o:p>
Bicheng PCB | <A href="mailto:sales@bichengpcb.com">sales@bichengpcb.com</A> |Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN<o:p></o:p>
If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as “remove” in the subject line.<o:p></o:p>
<o:p>&nbsp;</o:p>
Bicheng is located at Baoan, Shenzhen, China 518103.
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<DIV>At&nbsp;2019-02-15&nbsp;13:57:00,&nbsp;"bichengpcb&nbsp;|&nbsp;RF&nbsp;PCB"&nbsp;&lt;sales@bichengpcb.com&gt;&nbsp;wrote:&nbsp; </DIV>
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4 Layer High Frequency PCB Built on Rogers RO4003C <o:p></o:p>
Hi Manager,<o:p></o:p>
Today I’ll show you a type of high frequency PCB which is launched recently.<o:p></o:p>
<o:p>&nbsp;</o:p>
This is a type of 4 layer PCB built on 2 sheet 0.813mm RO4003C 1oz cores + 1 sheet RO4450F prepreg for the application of ultrahigh frequency coupler. <o:p></o:p>
<o:p>&nbsp;</o:p>
Basic specifications<o:p></o:p>
Base material: RO4003C 32mil + RO4450F 13mil PP<o:p></o:p>
Layer count: 4 layers<o:p></o:p>
Type: Castellation holes (half holes) on edge<o:p></o:p>
Format: 113mm x 80mm = 1 type = 4 piece<o:p></o:p>
Surface finish: Immersion gold<o:p></o:p>
Copper weight: Outer layer 35 μm/ Inner layer 35 μm<o:p></o:p>
Solder mask / Legend: no / no<o:p></o:p>
Final PCB height: 2.1 mm<o:p></o:p>
Standard: IPC 6012 Class 2<o:p></o:p>
Packing: 20 panels are packed for shipment. <o:p></o:p>
Lead time: 10 working days<o:p></o:p>
Shelf life: 6 months<o:p></o:p>
Stack up:<o:p></o:p>
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<o:p><IMG border=0 hspace=0 alt=stackup align=baseline src="cid:img4625af55.png">&nbsp;</o:p>
We can provide you with prototypes, small runs and mass production services. If you have any enquiries, please feel free to contact me.<o:p></o:p>
<o:p>&nbsp;</o:p>
Best regards<o:p></o:p>
<o:p>&nbsp;</o:p>
Kevin Liao | Business development<o:p></o:p>
Bicheng PCB | <A href="mailto:sales@bichengpcb.com">sales@bichengpcb.com</A> |Material partners: Rogers, ITEQ, SHENGYI, TAIYO, KUANGSHUN<o:p></o:p>
If you do not want to receive emails from Bicheng about marketing communications and special offers, reply as “remove” in the subject line.<o:p></o:p>
<o:p>&nbsp;</o:p>
Bicheng is located at Baoan, Shenzhen, China 518103.<o:p></o:p></Body></HTML>

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