Prix FOB
Obtenir le dernier prix( Negotiable )
|1000 Meter Minimum Order
Pays:
China
N ° de modèle:
EM212107
Prix FOB:
( Negotiable ) Obtenir le dernier prix
Localité:
CHINA
Prix de commande minimale:
-
Commande minimale:
1000 Meter
Packaging Detail:
CARTON
Heure de livraison:
7-10DAYS
Capacité de Fournir:
500000 Meter per Month
Payment Type:
T/T, PayPal
Groupe de produits :
Personne àcontacter Ms. Echo
No1-1,wangnong,Haishu,Ningbo, Ningbo, Zhejiang
Carrier type
The carrier tape is produced according to EIA **1e standard and
used in conjunction with the cover tape (upper sealing tape, also
known as cover tape). The carrier tape stores electronic components
such as patch resistor, patch capacitor, patch MOS tube and patch
diode in the pocket, and seals the cover tape above to form a
closed package. In this way, electronic components will not be
polluted and damaged during transportation.
During SMT assembly, the cover tape is stripped, and the automatic
mounting equipment takes out the electronic components placed in
the pocket in turn through the accurate positioning of the tape
index hole, feeds them to the mounter, and assembles them on the
PCB through SMT technology.
According to the different packaging of electronic components,
there are many kinds of carrier tapes
Although the carrier belt is only an auxiliary material, it has a
variety of types.
According to different widths, common widths include 8mm, *2mm,
*6mm, *4mm, *2mm, *4m, *6mm, etc. According to the size of the
electronic components, the user selects the belt products with
suitable width.
According to different materials, the carrier belt mainly includes
two types: plastic (polymer) and paper. Embossed carrier tape is
mainly composed of plastic materials. The mainstream in the market
are polycarbonate (PC) carrier tape, polystyrene (PS) and ABS
(acrylonitrile butadiene styrene copolymer resin) carrier tape.
Among them,
(1) PC material is characterized by high mechanical strength, good
transparency, good dimensional stability, high glass transition
temperature and good heat resistance.
(2) The mechanical strength of PS material is lower than that of PC
material, so sometimes it will be made into three-layer composite
sheet with ABS material to improve the tensile strength of the
carrier belt. The mechanical strength of PET material is close to
that of PC, but it is crystalline material with poor dimensional
stability.
In addition, there are also a small amount of carrier tapes
prepared from pet, APET and other materials. The stamping carrier
belt is mainly made of paper material or PE composite material.
Process characteristics
Although the carrier belt is only an auxiliary material, its
functions are different according to the production process and
processing mode. In the application, the user carries the product
characteristics and service conditions. Some basic considerations
are as follows.
According to the pocket forming process, the carrier belt can be
divided into intermittent (plate molding) and continuous (roller
rotating) forming methods. Among them, the batch forming method is
suitable for preparing large pockets. Relatively speaking, the
continuous forming method has better dimensional stability and
higher dimensional accuracy.
8, *2, 1, *4mm wide carrier tape and requirements for MLCC chip
capacitor packaging
8, *2, 1, *4mm wide carrier tape and requirements for MLCC chip
capacitor packaging
There are two kinds of pockets: embossed carrier tape and punched
carrier tape. Embossed carrier belt refers to a pocket with concave
shape formed by stretching the local part of the carrier belt
material through die embossing or blistering. This carrier belt can
form pockets of different sizes according to specific needs to
adapt to the size of electronic components; Stamping carrier belt
refers to forming penetrating or semi penetrating pockets through
die punching. The thickness of electronic components that can be
contained by this carrier belt is limited by the thickness of the
carrier belt itself, and generally can only be used to package
smaller components.
In terms of antistatic performance, the carrier tape can be divided
into three types: conductive type, antistatic type (electrostatic
dissipation type) and insulating type. Semiconductor products,
especially integrated circuit packaging, are particularly sensitive
to static electricity. Their conveying materials and packaging
equipment must have anti-static measures. Precision electronic
components have clear requirements for the anti-static level of the
carrier belt. As for insulated carrier tape, it is generally used
for non sensitive components such as connectors, FPC, shrapnel,
nuts and so on.
Development trend
As an auxiliary material, the development of carrier products goes
hand in hand with SMT and electronic components. In order to meet
the needs of high-speed and reliable assembly of special
components, some materials with high transparency, high brightness
and high conductivity have been developed. The size and shape of
matching components, the width and thickness of selected materials
can also be customized.
In order to adapt to the miniaturization development trend of
electronic components such as semiconductor chips, the carrier belt
is also developing in the direction of small and precision. At
present, the carrier belt with 4mm width has been supplied in the
market.
| Pays: | China |
| N ° de modèle: | EM212107 |
| Prix FOB: | ( Negotiable ) Obtenir le dernier prix |
| Localité: | CHINA |
| Prix de commande minimale: | - |
| Commande minimale: | 1000 Meter |
| Packaging Detail: | CARTON |
| Heure de livraison: | 7-10DAYS |
| Capacité de Fournir: | 500000 Meter per Month |
| Payment Type: | T/T, PayPal |
| Groupe de produits : | Carrier tape |
