custom machined si3n4 solid ceramic board blank plate
Reputation depends on quality, quality comes from Hard!
Silicon Nitride Ceramic:
Silicon Nitride Ceramics and Silicon Nitride Ceramic Plate, silicon nitride ceramic strips and other series of products play a key role in silicon nitride microscopy testing: checking whether there is mechanical damage on the material surface, locking the chip size and electrodes Whether the size meets the process requirements and whether the electrode pattern is complete. With our products, you can ensure compliance with the strictest quality standards, increase production efficiency and meet process requirements.
Since the LED chips are still arranged closely with a small spacing (about 0.1mm) after dicing, it is not conducive to the operation of the subsequent process. Use a chip expander to expand the film bonding the chips, so that the spacing of the LED chips is stretched to about 0.6mm. Manual expansion can also be used, but it is easy to cause undesirable problems such as chip drop and waste. Apply silver glue or insulating glue to the corresponding position of the LED bracket. For GaAs and SiC conductive substrates, red light, yellow light, and yellow-green chips with back electrodes use silver glue. For blue and green LED chips with sapphire insulating substrates, insulating glue is used to fix the chips.
The difficulty of the process lies in the control of the amount of glue, and there are detailed process requirements in the height of the glue and the position of the glue. Since silver glue and insulating glue have strict requirements for storage and use, remind: the wake-up, stirring and use time of silver glue are all matters that must be paid attention to in the process. Contrary to dispensing, glue preparation is to use a glue preparation machine to first apply silver glue on the back electrode of the LED, and then install the LED with silver glue on the back on the LED bracket. The efficiency of glue preparation is much higher than that of dispensing, but not all products are suitable for glue preparation.
properties:
High hardness, high strength, wear resistance, corrosion resistance, high temperature(1200°), good thermal diffusivity, good thermal shock resistance(avoid the temperature changing rapidly), good insulativity, low density. The comprehensive properties are best in most of structure ceramic.
Data Sheet↓
Color: Black Grey
Density: ＞3.2g/cm3
Hardness: HRA90
Vickers Hardness (Hv50): ＞1550 HV0.5
Modulus of Elasticity: 290Gpa
Flexural Strength: ＞600Mpa
Compressive Strength: 2500Mpa
Modulus of Elasticity(25°C): 65Gpa
Fracture toughness:＞6.0 Mpam1/2
Maximum Use Temperature: 1200°C
Thermal Conductivity:15-20 W(m.K)
Thermal Expansion Coefficient: ＞3.1 10-6/°C
Thermal Shock Resistance: 500 △T°C
Special Heat Capacity: 700 KJ/kg.K
Dielectric Strength: 1 KV/mm
Dielectric Constant: er
Volume Resistivity(20°C): 1.0*10(12)Ω.cm
Application industry:
Machinery, electronic, semiconductor, chemical, petroleum, smelt.
Specific application:
Welding shaft, electronic substrate, plunger, nozzle, slide guide, diesel parts, metal molding, shaft wheels etc.
Why Choose Us? 1.12 years of professional production industrial ceramics factory 2.High quality products with low price 3.High precision parts with lowest tolerance 4.Short time for production 5.Has a group of experienced, professional and efficient R&D team 6.Has a good reputation in China and abroad. 7.MOQ is not limited, small quantity is welcome.
8.Vigorous team and good after-sales service
Products Show
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
