20TB hard drive launched before 2020 with glass substrate manufacturing

September 11, 2017

In the past few years, the hard disk density slowdown the growing speed. Although Seagate and the West continue to work hard, put more discs, use helium, continue to introduce a larger capacity hard drive, but the hard disk density to enhance the speed gradually slow down, it is an indisputable fact. Now West and Seagate are working hard on 20TB high-capacity hard drive which is manufactured with glass substrate.

 

So far, only the notebook hard drive using glass substrate. Compared with the aluminum plate glass has several advantages. First, the glass is stronger than aluminum, allowing manufacturers to put thinner and lighter discs. In addition, compared with the aluminum substrate, the glass substrate is more flat and more smooth, more closely together, when the heat expansion is much weaker, that is to say the ability to cope with thermal expansion stronger. Also, let the spindle press the glass plate at a given speed, the need for less power, if the use of aluminum discs, because of its weight heavier, so a little higher energy consumption.

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Japanese company Hoya believes that HDD manufacturers will use glass in 3.5-inch hard drive. Hoya shows a prototype glass disc that has two thicknesses, one for 0.5 mm and another for 0.381 mm. Currently the disc thickness is 0.635 mm. There must be a gap between the disc and the disc. If the disc size is reduced by 40%, more discs can be loaded in the same capacity. The glass substrate facilitates the introduction of heat-assisted magnetic recording (HAMR). If you want to write data on the hard disk, the hard disk will heat the writing part with the laser. Seagate is ready to roll out HAMR drives in 2018 and expand capacity to 20TB by 2020.

Darlox’s producs: Flexible flat cables  FFC Cables

Wireless charging principle Detailed

September 7, 2017

Smartphones that support wireless charging are available from around the summer of 2011. Any handset device can use the global standard “Qi” specification. Parking can be charged EV (electric car) with the charging system.

Wireless charging has been in the electric toothbrush, electric shavers, wireless phones and other parts of household appliances in the practical, and now its scope of application has expanded to the field of smart phones.

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At present, most of the smartphones and chargers that support wireless charging on the market are in line with the “Qi” specification developed by the industry-based “Wireless Charging Alliance (WPC)” in the United States.

Wireless charging methods include “magnetic resonance” and “radio reception” and other means, Qi is used “electromagnetic induction”. By achieving standardization, as long as it is with Qi logo products, any handset device can be charged.

Darlox’s producs: Flexible flat cables  FFC Cables

Darlox Electronic Innovation Start FPC Identity Traceability SFIS System

August 31, 2017

April 19, 2016, Darlox Electronic declared the Shop Floor Information System (SFIS) at the International Conference Hall.

SFIS system is designed by Darlox Electronic independent research and development which is based on MES system after the declare of ERP system successfully at 2016.

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SFIS system, firstly two-dimensional code printed on each product that make sure each piece of product has a unique identity code. In the production process, through the CCD automatic scanning identification, to achieve production cycle paperless , System foolproof, real-time data records, quality traceability and many other functions to ensure that people, machine, material, law (process and governance tools), ring and other factors one by one correspondence.

Before the start of the briefing session, Darlox Electronic SFIS system has successfully docked the international customer products and successfully put into use, the next step will be for other strategic cooperation customers step by step.

Darlox’s producs: Flexible flat cables  FFC Cables

1.27mm Ptch FFC cable

August 28, 2017

Advantage of 1.27mm pitch FFC cable are Small size, light weight, the design of the cable board is used to replace the larger wiring harness wire. In the current patch electronics assembly board, the insulation material FFC cable is usually to meet the miniaturization and mobility requirements Of the solution. By using the 1.27mm ffc cables, the total weight and volume of the cable is reduced by 70% compared to conventional round wire harness. The cable can also be increased by using the reinforcement material or liner method to obtain Additional mechanical stability.


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When the circuit of the circuit is too complicated and the single layer board can not be routed or need copper foil for grounding shielding, you need to choose double or even multilayer fpc cable. Multilayer fpc cable have the holes connecting the layers of copper foil. This is a typical difference of single layer fpc cable .

Advantages and Disadvantages of Automotive FFC Cable

August 25, 2017

Automotive FFC cable including single-sided, double-sided and multi-layer board. The substrate based on polyimide CCL-based materials. Its advantage including high heat resistance, good dimensional stability, and good electrical insulation performance.

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Automotive FFC cable shortcomings:
(1) high initial cost of a single time
Since the flexible PCB is designed and manufactured for special applications, the cost of the circuit design, wiring, and backplane is high.

(2) difficult changes and repair
Once the soft PCB is made, it must be changed from the bottom of the map or the preparation of the light painting program, so it is not easy to change its surface covered with a protective film, to be removed before repair, repair and then to restore, it is more difficult jobs.

(3) size is limited
It can not be done very long, very wide.

(4) can be damage easily when improper operation.
Improper operation of the installation can easy to cause damage to the soft circuit, the soldering and rework needs of trained personnel operation.

Advantages of automotive cable FFC cable:
(1) can be free to bend, winding, folding, according to the space layout requirements of any arrangement, and in any three-dimensional space to move and stretch, so as to achieve the integration of components and wire connections.

(2) the use of FPC can greatly reduce the size and weight of electronic products.

(3) FFC also has good heat dissipation and weldability as well as easy to install, the overall cost is low, the combination of soft and hard design to a certain extent make up for the flexible substrate in the component carrying capacity of a slight shortage.

Darlox’s producs: Flexible flat cables  FFC Cables

The Function and Solution of Robot FFC Cable

August 24, 2017

Robot FFC cable is a simple structure flexible board. Usually the materials are substrate, transparent plastic, copper foil, protective film and transparent plastic. The foil is subjected to a process such as etching to obtain the desired circuit, and the protective film is to be drilled to expose the corresponding pads. After cleaning, combined by rolling and then plated at the exposed pad portion Gold or tin. General also stamping into the corresponding shape of the small circuit board. Now, many products used the cable, because the cable can be twists and turns, in the printer, mobile phones, notebooks and many other products.

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The type of robot FFC cable:
1, single panel
The use of single-sided PI copper plate material in the line after the completion of a layer of protective film, forming a single-layer conductor only a flexible circuit board.
2, ordinary double panel
The use of double-sided PI board deposited copper material in the double-sided circuit is completed, the two sides were added with a protective film, as a double conductor with a circuit board.
3, the substrate to generate a single panel
The use of pure copper foil material in the circuit process, respectively, in the two sides of each layer plus a layer of protective film, as a single-layer conductor, but in the circuit board has a conductor on both sides of the exposed circuit board.
4, the substrate to generate double-sided
A double-sided conductor circuit board having a two-layer, one-sided PI-plated copper material material is bonded to each other at a specific position to form a double-sided conductor circuit board in a localized region, A circuit board with high flexural properties.

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Darlox’s producs: Flexible flat cables  FFC Cables

Darlox FFC Housings

August 8, 2017

According to the pitch, there are 1.27MM ffc housing, 2.54mm ffc housing, including single row, double rows, multi-rows.

housing1

Housing baffle
To ensure the firmly using with the terminal contacts which is with the contact barbs Any type of housing baffle can not be damaged and deformed, especially due to the wrong terminal or other reasons for secondary use.

housing2

Barbs groove
Channel of contact barbs. Generally can be directly from the appearance to identify the direction of interspersed. Some others that more subtle can also confirm the direction of the contact piercing from the direction of the housing baffle.

housing3

Adaptation conditions
1, the size of the contacts (high, width) and the caliber of the housing.
2, the location of the contact barbs and housing baffle.
3, interspersed process is smooth.

housing4

 

Darlox’s producs: Flexible flat cables  FFC Cables

Business of Darlox

August 7, 2017

Darlox was founded in 2002 which is specialized in the production of polyimide and polyester (FPC, FFC) soft printed circuit board business.Over the past decade, Darlox is committed to high-grade, high-tech product development. Strict implementation of the QC management system, advanced technology and equipment, advanced management experience, the company continued to grow and develop. Darlox passed the ISO9001 quality system certification, United States Safety Experimental Center UL safety certification, and the SGS testing and certification in line with the EU ROHS & WEEE green environmental requirements.

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Darlox have a good and stable relations of cooperation with well-known enterprises of Japan, United States, Germany, Sri Lanka, South Korea, Hong Kong and other countries.

The company holding the only quality of my request, the only letter I seek, only Cheng Qi seeking the purpose of the company.

Darlox’s producs: Flexible flat cables  FFC Cables

Flexible circuit board instructions

August 2, 2017

Retention period
1, FPC conductor exposed parts, need to go through the surface coating (rust) treatment, such as plating / gold, OSP, tin, storage environment need to avoid corrosive gases, and the temperature to be controlled below 25 ℃, humidity control 50- 70%.
2, the product in the above preservation conditions, the effective shelf life of 6 months after the factory, plus desiccant vacuum packaging, shelf life of 1 year.
3, after the shelf life of the product will only affect the welding (such as gold surface oxidation, FPC moisture), in other areas no effect.
SMT job description
1, FPC substrate materials used in the absorption characteristics, such as customer process in a high temperature or through the SMT process, before the operation to bake dehumidification action, to avoid the product has burst holes, bubbles, stratification and other undesirable.
2, SMT baking before the general recommended baking temperature of 110-130 ℃, time is 60-120 minutes.
3, FPC after baking operation, need to be on-line within 2 hours of operation, such as more than 2 hours to be expected to work, you need to bake again to avoid the plate again moisture, affecting SMT operations.
4, FPC due to folding characteristics, so the parts of the welding position on the back need to strengthen the design to protect the solder joints and exposed areas from external forces, if no reinforcement design, then avoid any changes in the parts area Of the action, so as not to have the solder wire soldering concerns.

Bend instructions for use
1, Although FPC can be bent, but there will be a disruptive phenomenon if it is180 ° dead fold,
2, most of the ink-type protective layer characteristics are not resistant to bending, so the use of FPC surface protection ink printing area, such as text, marking, welding and other areas, is strictly prohibited in the assembly process more than 90 ° bending The action produced.
3, covering the film or the reinforcement plate and the conductor exposed area junction, such as pulling the gold finger end, for the stress concentration area, easy in the assembly process due to stress concentration, resulting in line break bad doubts, to remind FPC users attention This phenomenon.
4, FPC shape corner, with the stress concentration of the region, easy in the assembly process, produce tear phenomenon, to remind the user to pay attention to this phenomenon.
5, FPC conductor exposed parts, the surface coating treatment, such as gold / gold, etc., the focus is to prevent oxidation, this area is not suitable for bending action.
6, the general finger finger plug area, although the reinforcement plate design, but still not suitable for this area to bend, back-end components assembly process to pay special attention.
7, can not be directly on the FPC hole on the bend, so as to avoid the reliability of doubt.

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Darlox’s producs: Flexible flat cables  FFC Cables

Darlox FPC process capability and production equipment

Items 2010 2013
Conductor width/Pitch 3mil/3mil 1.6mil/1.6mil
Line distance tolerance ±0.02mm ±0.01mm
The distance between the pad and the line 0.1mm 0.075mm
Line and the edge of the distance 0.15mm 0.15mm
Minimum pad size 0.3×0.3mm 0.3×0.3mm
Convex disk size 0.45mm 0.25mm
Minimum PTH pore size 0.2mm 0.1mm
Silk screen alignment tolerance ±0.2mm ±0.075mm
Dimensional tolerances ±0.05mm ±0.05mm
Aperture / hole tolerance ±0.05mm ±0.025mm
Nickel plating thickness 1μm-5μm 1μm-5μm
Gold plating thickness 0.05μm-0.2μm 0.05μm-0.2μm
Maximum number of layers 8 8

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Darlox’s producs: Flexible flat cables  FFC Cables

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