Ping You Industrial Co.,Ltd
SMT Equipment Spare Parts Supplier&
PCB PCBA processing and production
|Place of Origin:||ShenZhen|
|Minimum Order Quantity:||1PCS|
|Packaging Details:||High quality carton packing, high quality vacuum packing,|
|Delivery Time:||5-10 work days|
|Payment Terms:||T/T, L/C, D/A, D/P, Western Union, MoneyGram|
|Supply Ability:||Ten thousand square meters per month|
|Color:||Green,blue,black||Number Of Plies:||2 Layer|
|Copper Thickness:||2oz||Base Material:||FR4|
|Board Thickness:||1mm||Place Of Origin:||Guangdong, China (Mainland)|
1mm Single Sided PCB,
1mm Single Sided Circuit Board,
2oz Single Sided PCB
Gold Finger Copper 1mm Single Sided PCB Circuit Board Blue Oil
|1||High precision prototype||PCB bulk production|
|1-28 layers||2 layers|
|5||Aspect Ration≤13:1||Aspect Ration≤13:1|
|6||2 layers:0.2mm;4 layers:0.35mm;6 layers:0.55mm;8 layers:0.7mm;10 layers:0.9mm||2 layers|
Nickel Plated :50—500u”
The development history of
Before the printed circuit board appeared, the interconnection between electronic
components is a direct wire connection to form a complete circuit.Now, circuit
breadboards exist only as effective experimental tools, and printed circuit boards
have become an absolute dominant position in the electronic industry.
At the beginning of the 20th century, in order to simplify the production of
electronic machines, reduce wiring between electronic parts and reduce production
costs, people began to study the method of replacing wiring with printing.Over the
past thirty years, engineers have been proposing to use metal conductors as wiring on
The most successful was in 1925, when Charles Ducas of the United States printed a
circuit pattern on an insulating substrate, and then successfully established
conductors for wiring by electroplating.
It wasn't until 1936 that Austrian Paul Eisler published his foil-film technology in
England. He used a printed circuit board in a radio device;In Japan, palace this
pleased help to spray the attached wiring method "メ タ リ コ ン blowing wiring method
(chartered 119384)" success to apply for a patent.Of the two, Paul Eisler's method is
the most similar to today's printed circuit boards. This process, called subtraction,
removes unwanted metals.Charles Ducas and Yoshinosuke Miyamoto did this by adding only
the wiring needed, which is called the addition method.However, due to the high heat
of electronic parts at the time, the two substrates were difficult to use together, so
it was not used formally, but also made the printed circuit technology further.
In 1941, copper paste was painted on talc for wiring in the United States to make
In 1943, the Americans introduced the technology to military radios.
In 1947, epoxy resin began to be used to make substrates.At the same time, NBS began
to study the printing circuit technology to form coils, capacitors, resistors and
other manufacturing technologies.
In 1948, the United States officially approved the invention for commercial use.
In the 1950s, low-heat transistors took the place of vacuum tubes in large numbers,
and printed circuit plate technology began to be widely used.At that time to etch foil
film technology as the mainstream.
In 1950, Japan used silver lacquer on glass substrate for wiring;And phenolic resin
based paper phenolic substrate (CCL) with copper foil for wiring.
In 1951, with the advent of polyimide, the heat resistance of the resins was further
improved, and the polyamide substrate was also manufactured.
In 1953, Motorola developed the electroplated through-hole method of two panels.This
method was also applied to later multilayer circuit boards.
Printed circuit boards were widely used for 10 years after the 1960s, its technology
also increasingly mature.Since Motorola's dual panel came out, multi-layer printed
circuit boards began to appear, so that the ratio of wiring and substrate area is even
In 1960, V. Dahlgreen made a flexible printed circuit board with a metal foil film
printed with the circuit pasted on a thermoplastic plastic.
In 1961, the Hazeltine Corporation in the United States adopted the electroplating
through hole method to produce multilayer plates.
In 1967, published "Plated-up technology", one of the methods.
In 1969, FD-R made flexible printed circuit boards from polyimide.
In 1979, Pactel published one of the layer addition methods, the "Pactel Method".
In 1984, NTT developed the "Copper Polyimide Method" for thin film circuits.
In 1988, Siemens developed an additional layer printed circuit board for Microwiring
In 1990, IBM developed layered printed Circuit boards for the "Surface Laminar
In 1995, Matsushita developed Alivh's laminated printed circuit board.
In 1996, Toshiba developed BIT's plus-layer printed circuit board.
In the late 1990s, when many additional layer printed circuit board schemes were put
forward, additional layer printed circuit boards were also formally used in large
numbers until now.
1. The PCB circuit board needs to be vacuum packed with colorless gas bead plastic
bags, and the bags should be attached with necessary desiccant and ensure that the
bags are tightly packed.Can not contact with wet air, avoid PCB circuit board surface
spray tin, gold deposition and welding pad parts are oxidized and affect the welding,
is not conducive to production.
2. When packing the PCB circuit board, it is necessary
to surround the box with a layer of bubble film. Because the bubble film has good
water absorption, it can absorb water and moistureproof.In addition, moisture-proof
beads can be placed in the case.
3, put the PCB circuit board classification,
label.After sealing, the box must be kept away from the wall and the floor.Store in a
dry, ventilated place and avoid direct sunlight.
4, the warehouse temperature of PCB
circuit board storage is best controlled at 23±3℃, 55±10%RH, under such conditions,
gold, gold, tin spraying, silver plating PCB circuit board surface treatment can
generally be stored for 6 months, silver, tin, OSP surface treatment PCB circuit board
can be stored for 3 months.
5, for a long time do not use the PCB circuit board, it is
best to brush a layer of three anti paint, three anti paint can be moisture-proof,
dustproof, anti oxidation.In this way, the storage life of PCB circuit board will be
increased to 9 months.
About the PCB board several kinds of packaging, introduced to
this.In fact, the storage time of PCB circuit board is related to the surface
treatment. Gold plating and electric gold plating are the longest storage time. Under
the conditions of constant temperature and humidity, they can be stored for two or
three years.Do a good job of PCB circuit board storage can better extend the service
life of the circuit board, is a problem can not be ignored.
Contact Person: PYPCB-Vera