GB/T 20229-2022 in English

VALID

Gallium phosphide single crystal

Issued on:2022-03-09
Implemented on:2022-10-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $200.00
$194.00

Standard No:	GB/T 20229-2022
Document status:	VALID
Title in English:	Gallium phosphide single crystal
Title in Chinese:	磷化镓单晶
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-03-09
Implemented on:	2022-10-01
Superseding:	GB/T 20229-2006 Gallium phosphide single crystal
ICS Classification:	29.045-Semiconducting materials
Chinese Classification:	H83-Compound semiconductor material
Professional Classification:	GB-National Standard
Related Keywords:	single crystal introduction core changes standard revision technical indicators requirements gallium phosphide key technical requirements dislocation density control new
Related Topics:	single crystal Phosphorus standard gallium phosphide crystal gallium phase transition gallium sem gallium reading gallium xps peak Single Crystal Foil Crystal English Gallium 1cm Polycrystalline vs Single Crystal Single crystal standard gallium edta single crystal target Phosphating Gallium volatilization polycrystalline and monocrystalline single crystal method Single crystal angle head Gallium single crystal + phase gallium sulfonate Gallium permanent magnet How about single crystal and polycrystalline GB gallium Single Crystal Meter Liquid target single crystal how to read gallium molecular single crystal gallium price gallium toxicity gallium price GaN terahertz crystal single crystal surface Gallium tem gallium mri Single crystal detection gallium viscosity Liquid target single crystal Single Crystal Bit gallium xps Gallium hexahydride single chain single crystal single crystal secondary crystallization Crystallization peak+ gallium+mri Gallium 69 hours Single Crystal+ Single Crystal Parameters Gallium Fillings Colloidal Gallium Single Crystal Requirements Gallium tungstate GBT20229 GB/T 20229-2006 GBT20229-2022 gallium antimonide Selenium gallium barium crystal Phosphating requirements gallium ej/t 20229 Gallium Arsenide Single Crystal Quality Standard single crystal for single crystal instrument

《GB/T 20229-2022磷化镓单晶》由TC203（全国半导体设备和材料标准化技术委员会）归口，TC203SC2（全国半导体设备和材料标准化技术委员会材料分会）执行，主管部门为国家标准化管理委员会。

Introduction

Core changes in the standard revision

Technical indicators	Requirements of the 2006 version	Changes to the 2022 version
Electrical properties	Only n-type ingots are specified	New p-type and semi-insulating indicators are added
Dislocation density	No requirements	New grading standards (Grades I~III)
Grinding sheet specifications	Only 50.8mm diameter	Expanded to 63.5/76.2mm

Analysis of key technical requirements

1. Electrical performance indicators

The standard divides GaP single crystals into three categories according to the conductivity type:

n-type doped ingot: sulfur (S), tellurium (Te), zinc (Zn), resistivity 0.01-0.5Ω·cm
p-type ingot: new iron (Fe) doping requirements, carrier concentration 1×10¹⁷-1×10¹⁸cm^-3
semi-insulating type: resistivity ≥1×10⁷Ω·cm

2. Dislocation density control

New normative appendix A specifies the corrosion test method in detail:

Key steps:

Use HNO₃:HF:AgNO₃=12:8:5 mixed etching solution
Corrosion in a 70℃±2℃ water bath for 10-12 minutes
Observe the (111) triangular corrosion pits under a metallographic microscope at 100-500 times

Implementation suggestions

Key points for quality control

The 17-point test method should be implemented for ingot acceptance (points are taken at a spacing of D/10 of the diameter)
The total thickness variation (TTV) of the grinding sheet must be ≤15μm (50.8mm specification)
Surface quality inspection shall be carried out in dark field according to GB/T6624

Standard application scenarios

This standard is particularly suitable for:

LED epitaxial wafer substrate material preparation
Microwave power device development
Surface acoustic wave (SAW) device production

More samples: DL/T 5154-2012 JJG 21-2008 GB 50021-2001(2009)

Sample only — not a preview of GB/T 20229-2022

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