PCB, CSP mounted, 0.5mm fine pitch

Dear ,

Good day.

This is a courtesy email to let you know that fine pitch CSP-mounted PCB's are used in many interconnection pins devices such as microprocessors, communication equipment and control industrial machinery.
0.5mm pitch PCB

PCB dimension:	93.25 x 104.12mm=1PCS
Basic stack up:	6 Layer PCB
	copper ------- 18um(0.5oz)+plate TOP layer
	Prepreg 7628 0.195mm
	copper ------- 18um(0.5oz) MidLayer 1
	FR-4 0.1mm
	copper ------- 18um(0.5oz) MidLayer 2
	Prepreg 7628 0.195mm
	copper ------- 18um(0.5oz) MidLayer 3
	FR-4 0.1mm
	copper ------- 18um(0.5oz) MidLayer 4
	Prepreg 7628 0.195mm
	copper ------- 18um(0.5oz)+plate BOT Layer
Minimum trace and space	4mil/4mil
Minimum / maximum holes	0.2/1.3mm
Number of different holes	11
Number of drill holes	9840
Number of milled slots	0
Material:	SHENGYI FR-4
Surface finish:	Immersion gold (19.1% area)
Solder mask:	Gloss green
Contour:	rout (mill)
Via:	plated through hole(PTH),via in pad, blind via from TOP to mid-layer 1
Final height of PCB	1.1mm ±0.1
function:	CSP mounted PCB

 

If you have requirement on these PCB's, please do not hesitate to contact us by simply reply back to this email or following contact details.

 

Ruth Huang | Business development

Bicheng PCB |Material partners: ITEQ, SHENGY, TAIYO, KUANGSHUN

(86-755-21949341 | www.bicheng-pcb.com | sales12@bicheng-pcb.com

If you do not want to receive emails from Bicheng about marketing communications, reply as "remove" in the subject line.

Bicheng is located at Baoan, Shenzhen, China 518103.

Mixed material PCB

Dear  haile.david.amos,

Good day.

This is a courtesy email to let you know that PCB with characteristic impedance control is widely used in high frequency circuit. PCB's that mixed high frequency material can reduce signal loss at high frequencies and meet the development needs of communication technology.

 

Mix high frequency material

4 layer PCB mixed with RO4350B

  |  ---          ---------- LAYER 1 (TOP LAYER) 0.5OZ+PLATE    

  |                          Pre-Preg 10MIL RO4350B

  |               ---------- LAYER 2 (MID LAYER 1) 0.5OZ 

1.6 mm +/-10%     Core FR-4 

  |               ---------- LAYER 3 (MID LAYER 2) 0.5OZ 

  |                          Pre-Preg 20MIL RO4350B

  |  ---          ---------- LAYER 4 (BOTTOM LAYER) 0.5OZ+PLATE  

 

If you have requirements on the combined material PCB's, please do not hesitate to contact us by simply reply back to this email or following contacts. I will get back to you ASAP.

Wish you the best in trade. 

 

Ruth Huang | Business development

Bicheng PCB |Material partners: ITEQ, SHENGY, TAIYO, KUANGSHUN

(86-755-21949341 | www.bicheng-pcb.com | sales12@bicheng-pcb.com

If you do not want to receive emails from Bicheng about marketing communications, reply as "remove" in the subject line.

Bicheng is located at Baoan, Shenzhen, China 518103.

Multilayer PCB vs Prepreg(PP)

Dear haile.david.amos,

 

Good day.

This is a courtesy email to let you know that a breakdown of multilayer boards show that it consists of 3 basic elements: thin rigid laminates, copper foils and prepregs sheets.

The prepreg has 3 main functions, that is to bond thin inner-layer laminates, to establish a dielectric spacing between copper layers and fill spaces and openings in the etched copper. 

 

A very important issue is the practical build-up of the dielectric thickness between the circuit layers.

 

Comparison of different Prepreg.

Type of Prepreg	Finished Thickness		Resin Content
	mm	mil	%
7628H（7630）	0.213	8.4	50
7628（43%）	0.195	7.6	43
7628（41%）	0.185	7.3	41
2116HR	0.135	5.3	57
2116	0.120	4.7	52
2113	0.100	4.0	56
1080	0.076	3.0	64
1060	0.050	2.0	71

1080=3.04mil,     2116=4.67mil,     7628=7.68mil

 

If you have requirement on multilayer PCB's, please do not hesitate to contact us by simply reply back to this email or following contact details. We'll get back to you ASAP.

Wish you the best in trade. 

 

Ruth Huang | Business development

Bicheng PCB |Material partners: ITEQ, SHENGY, TAIYO, KUANGSHUN

(86-755-21949341 | www.bicheng-pcb.com | sales12@bicheng-pcb.com

If you do not want to receive emails from Bicheng about marketing communications, reply as "remove" in the subject line.

Bicheng is located at Baoan, Shenzhen, China 518103.

 

Multilayer PCB vs Inner layer laminates

Dear haile.david.amos,

 

Good day.

This is a courtesy email to let you know that inner layer laminates are to form the inner circuits of the multilayer PCB. They can be divided in 4 groups: 

* double-sided innerlayer laminates etched on one side only 
* double-sided innerlayer laminates etched on both sides 
* double-sided innerlayer laminates with buried via holes 
* innerlayer and outlayer laminate with blind via holes 

The innerlayer laminates are produced in very much the same way as plated-through-holes boards. The main difference is that the innerlayer laminates are very thin and inclined to flexing during manufacturing. 

Thin laminate (base masterial FR-4)

Vendor	Model	Thickness	Copper	TG	ER
SHENGYI	S1141	0.05-3.2 mm	17-105 μm	≥130	≤5.4
SHENGYI	S1170	0.05-3.2 mm	17-105 μm	≥170	≤5.4
ITEQ	IT-140	0.05-1.5 mm	17-175 μm	>135	＜5.4
ITEQ	IT-180	0.05-1.5 mm	17-175 μm	>170	＜5.4
ITEQ	IT-180A	0.05-1.5 mm	17-175 μm	>170	＜5.4

 

If you have requirements on the PCB's, please reply back to this email or following contact by your gerber files and we will get back to you ASAP.

 

Ruth Huang | Business development

Bicheng PCB |Material partners: ITEQ, SHENGY, TAIYO, KUANGSHUN

(86-755-21949341 | www.bicheng-pcb.com | sales12@bicheng-pcb.com

If you do not want to receive emails from Bicheng about marketing communications, reply as "remove" in the subject line.

Bicheng is located at Baoan, Shenzhen, China 518103.

4 Layer PCB, RO4003C mixed with FR-4

Dear haile.david.amos,

Good day.

This is a courtesy email to let you know that the mixed material PCB's RO4003C and FR-4 are often used in radio frequency, LTE small cell, 4G, WiMax etc. 

4 layer mixed material PCB

PCB dimension:	83x 51mm=1PCS
Basic stack up:	4 Layer PCB
	copper ------- 35um(1oz)+plate TOP layer
	RO4003C 12mil Er 3.38
	copper ------- 18um(0.5oz) MidLayer 1
	FR-4 1.0mm
	copper ------- 18um(0.5oz) MidLayer 2
	RO4003C 12mil Er 3.38
	copper ------- 35um(1oz)+plate BOT Layer
Minimum trace and space	5.6mil/5.9mil
Minimum / maximum holes	0.3/0.5mm
Number of different holes	3
Number of drill holes	1521
Number of milled slots	0
Material:	RO4003C + FR4
Surface finish:	Immersion Gold (91.8%) 2 micoinch over 100 microinch nickle
Solder mask:	NO
Contour:	rout (mill)
Via:	plated through hole(PTH)
Final height of PCB	1.6mm ±%10
function:	90ohm impedance control

 

If you have requirement on these PCB's please do not hesitate to contact us by simply reply back to this email.

Wish you the very best business.

 

Ruth Huang | Business development

Bicheng PCB |(86-755-21949341 | www.bicheng-pcb.com | sales12@bicheng-pcb.com

If you do not want to receive emails from Bicheng about marketing communications, reply as "remove" in the subject line.

Bicheng is located at Baoan, Shenzhen, China 51803.

2014 Year in Review

In reverse chronological order.

December

Peter flew in from Brevard, NC which meant all five kids were with us this year.

November

Helen's father, Bill Buckman, passed away on November 18th. Helen flew out immediately and Adam, Elaina, Mark, and Caroline and I drove the minivan to Los Gatos so we could be with the family. Peter flew in on Thanksgiving Day and the memorial service was Friday after Thanksgiving.

Dave visited Peter in Brevard, NC in early November.

October

Some text.

September

Dave resigned from EMIT Technologies on 9/19/2014 to make room for his own initiatives.

August

July

Dave, Helen, Elaina, and Caroline visited Plano, TX to look at houses and schools to see if we would like living there.

June

May

April

March

February

January