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Silicon micropowder has been widely used in copper clad laminate for more than ten years, and its surface treatment technology has always been a hot topic of inorganic filler used in copper clad laminate. Surface modification of filler: (1) It can reduce the interaction between particles, effectively prevent particle agglomeration, reduce the viscosity of the […]

Huawei’s self-designed HiSilicon K3V2 quad-core processor, clocked at 1.2GHz/1.5GHz The specification of K3V2 quad-core processor is 12*12mm, which is the smallest quad-core processor in the industry at present. At the same time, K3V2 quad-core processor has the strongest embedded GPU in the industry, and uses the highest-end 64-bit bandwidth DDR memory design in mobile phone […]

At present, high-definition network video surveillance has already entered the real high-definition period. At present, there are many brands in the market, and there are also a variety of high-definition chip schemes. How to actually choose them makes customers confused. In the same industry, it is often discussed which product is better at this stage […]

Basic uses of copper clad laminate Copper clad laminate (CCL) is a kind of board made of wood pulp paper or glass fiber cloth as reinforcing material, soaked in resin, covered with copper foil on one side or both sides, and hot pressed. Copper clad laminate (CCL) is the basic material of electronic industry. It […]

There are several treatment processes for the surface of LED circuit board: smooth board (without any treatment on the surface), rosin board, OSP (organic solder protective agent, slightly better than rosin), tin spraying (lead-tin and lead-free tin), gold-plated board, gold-deposited board, etc. These are more noticeable. Difference between gold deposition process and gold plating process […]

The basic steps of led manufacturing: welding-self-inspection-mutual inspection-cleaning-rubbing. Here’s a small series to give you a detailed introduction. 1. welding of led circuit board ① Judging the direction of the lamp: the front is facing upwards, and the side where the black rectangle is located is the negative end; ② The direction of the circuit […]

The introduction of Loongson 3A2000 processor, which is “Loongson 3A3000/3B3000 is the latest upgraded product of Loongson 3 series processors. Based on the design of Loongson 3A2000, Loongson 3A3000 has made a few structural improvements, such as increasing the number of key queue entries of processor cores, expanding on-chip private/shared cache capacity, etc., which is […]

There are two kinds of SRAM in Loongson chip: one is CPUSRAM； which is closely related to microprocessor (data, code memory); The other is HDCSRAM used for hard disk control, which can’t be read directly by microcontroller, and is a dual-port SRAM. Both of them choose different testing strategies. Test strategy of CPUSRAM Like the […]

The chips designed by HiSilicon cover a wide range, including wifi networks, fixed networks, digital media and other fields, but the most concerned and highly concerned ones are processor chips, including mobile phone processor SoC, server chips and its AI chips. On the technical level and threshold, the mobile phone with processor is obviously the […]

Loongson 2H core board is an electronic device computer motherboard that packs the core functions of MINIPC. Most of the core boards are integrated with CPU, storage devices and pins, which are connected with the base plate of supporting facilities according to the pins to complete a system chip in a certain field. People often […]