Printed
Circuit Board with 90 Ohm Impedance Controlled | Single End Impedance Differential
Impedance PCB Board
(Printed
Circuit Boards are custom-made products, the picture and parameters shown are
just for reference)
1.1
General Description:
It's 1.6 mm thick with white
silkscreen(Taiyo) on green solder mask (Taiyo) and immersion gold on pads. It's
also an impedance controlled PCB with single-end impedance in inner layers and
differential impedance controlled on top and bottom layer. The base material is
from ITEQ. They're fabricated per IPC 6012 Class 2 using supplied Gerber data.
Each 25 boards are packed for shipment.
1.2
Features and Our Advantages:
1)
High Tg materials shows excellent thermal reliability and CAF resistance
providing long-term reliability for industrial and automobile application.
2)
Gold pads have good oxidation resistance and good heat dissipation.
3) UL,
ISO14001, IATF16949 certified factories
4) Higher
than 98% on-time-delivery rate.
5) Customer
complaint rate: <1%
6)
No minimum order quantity. 1 piece is available
1.3
Applications:
Modems,
Data Logger, Wireless N Router, Modem Router Wireless, 24V Transformer, 3G USB,
PLC Program, Embedded Development, Master Module, Computers
1.4
PCB Data Sheet:
|
PCB SIZE
|
99.1 x
105.3mm=1PCS
|
|
BOARD TYPE
|
Multilayer PCB
|
|
Number
of Layers
|
10 Layers
|
|
Surface
Mount Components
|
YES
|
|
Through
Hole Components
|
YES
|
|
LAYER STACKUP
|
copper
------- 17.5um(0.5oz)+plate TOP Signal
|
|
4mil prepreg 2113
|
|
copper ------- 35um(1oz) GND Plane
|
|
5mil FR-4
|
|
copper ------- 18um(0.5oz) SIG1
|
|
5mil prepreg 2116
|
|
copper ------- 18um(0.5oz) SIG2
|
|
5mil FR-4
|
|
copper ------- 35um(1 oz) PWR Plane
|
|
13mil prepreg 7628 + 1080
|
|
copper ------- 35um(1 oz) GND Plane
|
|
5mil FR-4
|
|
copper ------- 18um(0.5oz) SIG3
|
|
5mil prepreg 2116
|
|
copper ------- 18um(0.5oz) SIG4
|
|
5mil FR-4
|
|
copper ------- 35um(1oz) GND Plane
|
|
4mil prepreg 2113
|
|
copper ------- 17.5um(0.5oz)+plate BOT Signal
|
|
TECHNOLOGY
|
|
|
Minimum Trace and Space:
|
4mil/4mil
|
|
Minimum
/ Maximum Holes:
|
0.3/5.5mm
|
|
Number
of Different Holes:
|
31
|
|
Number
of Drill Holes:
|
3532
|
|
Number
of Milled Slots:
|
0
|
|
Number
of Internal Cutouts:
|
0
|
|
Impedance
Control
|
Single-Ended
Trace Width: L3 / L4 / L7 / L8 --- 4mils --- 56 ohm, L3 / L4 / L 7 --- 6mils
--- 49 ohm; Differential impedance: L1 --- 4 mils / 4 mils --- 90 ohm; L10
--- 4 mils / 6 mils --- 100 ohm
|
|
BOARD
MATERIAL
|
|
|
Glass
Epoxy:
|
FR-4,
ITEQ IT-180 TG>170, er<5.4
|
|
Final
foil external:
|
1oz
|
|
Final
foil internal:
|
0.5oz
|
|
Final
height of PCB:
|
1.6mm
±0.16
|
|
PLATING AND COATING
|
|
|
Surface Finish
|
Immersion
Gold (12.8%) 2µ" over 100µ" nickel
|
|
Solder
Mask Apply To:
|
Top and Bottom,
12micon Minimum.
|
|
Solder
Mask Color:
|
Green,
PSR-2000GT600D, Taiyo supplied
|
|
Solder
Mask Type:
|
LPSM
|
|
CONTOUR/CUTTING
|
Routing
|
|
MARKING
|
|
|
Side of
Component Legend
|
TOP
and Bottom.
|
|
Colour
of Component Legend
|
White, IJR-4000
MW300, Taiyo Supplied.
|
|
Manufacturer
Name or Logo:
|
Marked on the
board in a conductor and leged FREE AREA
|
|
VIA
|
Plated
Through Hole(PTH), Via in Pad and via tented and not be visible.
|
|
FLAMIBILITY RATING
|
UL
94-V0 Approval MIN.
|
|
DIMENSION TOLERANCE
|
|
|
Outline
dimension:
|
0.0059"
(0.15mm)
|
|
Board
plating:
|
0.0030"
(0.076mm)
|
|
Drill
tolerance:
|
0.002"
(0.05mm)
|
|
TEST
|
100%
Electrical Test prior shipment
|
|
TYPE OF ARTWORK TO BE SUPPLIED
|
email
file, Gerber RS-274-X, PCBDOC etc
|
|
SERVICE AREA
|
Worldwide,
Globally.
|
1.5
Single ended (line) impedance, Differential impedance:
Definition
of Characteristic Impedance
At a
certain frequency, relative to a reference layer, the resistance of its
high-frequency signals or electromagnetic waves in the process of transmission
is called the characteristic impedance, which is the vector summation of
electrical impedance, inductive reactance, capacitance resistance.
The
classification of characteristic impedance
Common
characteristic impedance is divided into:（1）Single ended (line) impedance; (2) Differential impedance and (3) coplanar
impedance, etc.
Single
ended impedancerefers to the measured impedance of a single signal line.Differential
impedancerefers to the impedance measured between the two transmission
lines with equivalent width and spacing in differential drive.Coplanar
impedancerefers to the impedance measured when the signal line is
transmitting between its surrounding GND / VCC (the space between the signal
line to GND / VCC on both sides is equal).
The
Determinant Condition Required for Impedance Control
When
the signal is transmitted in the PCB conductor, if the length of conductor is
close to the 1/7 of the signal wavelength, then the conductor at this time
becomes a signal transmission line, the other general signal transmission lines
are required to be done with impedance control. Whether it is required to
control the impedance in PCB production is based on the customer's requirement,
if the customer requires that a certain line width need to be done with impedance control, it is required to control the impedance of the line width in
production.Three basic elements of impedance match are the output impedance (the original active parts), the characteristic impedance (signal line), the
input impedance (passive parts) (PCB board)
More
Displays of Impedance Controlled PCB:
BICHENG PCB WORKSHOP:
BICHENG PCB CERTIFICATE:
BICHENG MAIN COURIERS:
